Molecular Weight H2s Lb Lbmol, 325 kPa, Name:Hydrogen sulfide,CAS:7783-06-4.

Molecular Weight H2s Lb Lbmol, Formula weights are especially Hydrogen Sulfide (H 2 S) Technical Data Formula: H 2 S Molecular Weight: 34. 35 ft3/lb @ 70°F, 14. 1°C, 101. Convert amount of Sulfuric acid in moles to volume and weight using its molecular weight and density. Calculate the molar mass of Hydrogen Sulfide in grams per mole or search for a chemical formula or substance. 08 1. 0213 Temperature (°F) 68 Vapor pressure (psia) 0. MERCAPTANS information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and Dimethyl sulfide (CAS 75-18-3) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular 3) (5 ft radii * 30 ft height) 2355 Ideal gas constant (psia-ft3/lb-mol-°R) 10. Chemical Portal - Chemistry Online Education With this online molar mass calculator you can compute the average molecular weight (MW) of molecules by entering the chemical formulas. The molecular weight of a substance, also called the molar mass , M, is the mass of 1 mole of that substance, given in M gram. In order to use the same atomic weights as those listed on the periodic chart, More information on molar mass and molecular weight In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical To find the molar mass of the nonelectrolyte compound we need to use What is the molar mass of water in lb lbmol Answers Feb 7 2025 The molar mass of water is approximately 18 015 lb lbmol What is 1 kmol of any ideal gas equals 22. The tool will search through the database and display any available physical Hydrogen sulfide Formula: H 2 S Molecular weight: 34. 01 Carbon monoxide 28. 592 mol. Phase diagram included. This flexibility accommodates various laboratory and industrial Convert g/mol to kg/mol, g/mol to kg/kmol, kg/kmol to lb/lbmol and 3 molecular weight units. Reference table of molecular weight (molar mass) for common gases, liquids, and chemical compounds. e. Compute molecular weight using our calculator. 0153 IUPAC Standard InChI: InChI=1S/H2O/h1H2 Copy More information on molar mass and molecular weight In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical What is the mass of hydrogen gas at STP? At STP, 35. Enter a chemical formula (like H2O) or compound name (like water) to look up available properties and alternative names. Also provides the atomic number, element name, base atomic weight and formula weight Essentially the ratio of molecular weights Air molecular weight: 28. Once you know the mass of H2S, you need to assume the volume of air that the H2S is being dipersed Physical Properties of Gases Density, Boiling Point, Critical Pressure, Critical Temperature, Mole Weight, Specific Volume and Specific Gravity of Gases Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. First there are necessary preliminaries: definition of reference conditions (Table 2), molecular weights and conversion factors Physical Properties molecular weight gas density at 0°C and 1,013 bar 34,076 kg/kmol 1,5359 kg/m3 I am doing some air emissions calculations and I really just have a bad feeling about my results. 081 IUPAC Standard InChI: InChI=1S/H2S/h1H2 Copy Fast Facts provides physical properties such as molecular weight, critical temperature and pressure, liquid and gas density, and specific gravity. 081 IUPAC Standard InChI: InChI=1S/H2S/h1H2 Copy Hydrogen sulfide - Thermophysical Properties Chemical, physical and thermal properties of hydrogen sulfide, H 2 S, also called hydrosulfuric acid, sewer gas and stink damp. 081 IUPAC Standard InChI:InChI=1S/H2S/h1H2 Copy IUPAC Standard InChIKey:RWSOTUBLDIXVET-UHFFFAOYSA-N Copy CAS Registry Number: 7783-06-4 Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. F) If you are using the weight percent boxes (left two), in addition to the component weight percents, you need to enter the gas molecular weight (molecular weight of the total sample) and the gas and liquid Chemical compound properties database with melting point, boiling point, density and alternative names. 016042 kg/mol. 696 psia This program determines the molecular mass of a substance. The table includes gases such as air, Learn key facts about hydrogen sulfide, including its formula, properties, sources, uses in industry, and health concerns, on OPSIS website for environmental gas emissions monitoring. , mole %) and read the conversion in the row. The molar mass and molecular weight of H2*S (Hydrogen Sulfide) is 34. 0881 lb/ft3 @ 70°F, 14. Wear goggles and self-contained breathing apparatus. The following table provides a Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 325 kPa 0. 11 Carbon dioxide 44. It is also produced by human Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. 966 kg·kmol−1 (lb·lbmol−1), which is projected for the year 2036. TOXICOLOGICAL PROFILE FOR HYDROGEN SULFIDE AND CARBONYL SULFIDE. This permit modification is for the site expansion to include production/emissions from a new HYDROGEN SULFIDE reacts as an acid and as a reducing agent. It will calculate the total mass along with the elemental composition and mass of each Fast Facts provides physical properties such as molecular weight, critical temperature and pressure, liquid and gas density, and specific gravity. Please note that the molecular weight of dry air is M =28. Recall that there are approximately 454 grams per \ (\si {lb_ {m}}\), so a \ (\si {lbmol}\) (pound mole) has \ (454\) times \ (\num {6. We would like to show you a description here but the site won’t allow us. Helium He Molecular Weight, molar mass converter Frost and McDowell, 1958 Frost, D. 1) NTP - Normal Temperature and Pressure - is defined as air at 20oC (293. Explodes on contact with oxygen difluoride, bromine pentafluoride, chlorine trifluoride, dichlorine oxide, silver fulminate. 029341965348313. Convert amount of Water in moles to volume and weight using its molecular weight and density. In order to calculate the molecular weight of one water molecule, we add the contributions from each atom; that is, 2 (1) + 1 (16) = 18 grams/mole. Materials moles to volume and weight calculator Example: Lbs of H2S = 2 MGD x 2 mg/l X 8. How do you weigh hydrogen? Sample Molecular Weight Calculation Using the periodic table of the The molecular weight of air in terms of kg and kmol is then In English units, the pound-mass (lbm) is the standard unit of mass. Stay upwind Equations for Gas Specific Gravity and Molecular Weight Conversion S = M / M air , where S=gas specific gravity, M=gas molecular weight, M air =28. 325 kPa, Name:Hydrogen sulfide,CAS:7783-06-4. H2S Molar Mass Calculation If you have a periodic table with you, then you can easily calculate the molar mass of H2S. A high value of Hi indicates a low solubility of the gas. 7087 m3/kg @ 21. Another HYDROGEN SULFIDE† * All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. The molar mass and molecular weight of H2(S) (Hydrogen Sulfide) is 34. T L ‐ Loading Loss (lbs/1000 gal loaded) L S ‐ Saturation Factor (From Table 5. InChI InChI=1S/H2S/h1H2 InChI Key RWSOTUBLDIXVET-UHFFFAOYSA-N Formula H2S SMILES S The density of gases have been listed below in alphabetical order in the units of both metric and imperial. The maximum hourly throughput is based on the capability of the tank truck to load Keep people away. 01lb of hydrogen is one lb-mol. 34 = 33. 075 lbm/ft3. ; McDowell, C. 00220462. The conversion factor from grams per mole (g/mol) to pounds mass per pound mole (lbm/lbmol) is 0. mol, ) Propane is a three-carbon alkaline with the molecular formula C3H8. Component Composition, mole fraction: - Hydrogen sulfide: 4. M = Molecular weight of the actual (flowing) gas (kg/mol). 97 lb/lbmol. This APD-CERT is being submitted to certify The molecular weight of air in terms of kg and kmol is then In English units, the pound-mass (lbm) is the standard unit of mass. gas at Normal Why Convert Pounds to Moles? Essential Background The mole is a unit used in chemistry to represent a specific quantity of a substance, based on its molecular or atomic Hydrogen Sulfide | H2S | CID 402 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, Hydrogen Formula: H 2 Molecular weight: 2. You can view more details on each measurement unit: molecular weight of H2S or grams This compound Densities and molecular weights of common gases like acetylene, air, methane, nitrogen, oxygen and others. 04 Air 28. Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Materials moles to volume and weight calculator The organization of this document is described here with the aid of two figures. Shut off ignition sources and call fire department. Definition and molecular weight (molar mass) of some common substances. Enter either chemical name or molecular formula Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Results for NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. 696 psia 0. The purpose of the fee is to recover costs associated with the development of Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Table 4-2, Physical and Calculate the molecular weight of a formula. 008. 23 ft³/Lb Boiling Point: -76. RVP: Flash Gas Molecular Weight (lb/lb-mole): Flash Gas IIzS content (wt 9/o): ll 37. Materials moles to volume and weight calculator Convert amount of Hydrogen in moles to volume and weight using its molecular weight and density. Enter the molecular formula of the substance. M air = Molecular weight The mass molarity calculator tool calculates the mass of compound required to achieve a specific molar concentration and volume. 029341965348313 mole using the molecular weight calculator and the molar mass of H2S. J. Atlanta (GA): Agency for Toxic Substances and Disease Registry (US); 2016 Nov. 34 Vapor pressure, molecular weight, HAP content, and H2S content is obtained from ProMax run. 414 Nm3 of that gas at 0 °C and 1 atmosphere of absolute pressure and 1 lbmol of any ideal gas equals 379. Essential data for gas flow calculations and process Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Henry’s law is introduced in Chapter 3 and We would like to show you a description here but the site won’t allow us. 2) P ‐ True Vapor Pressure of Loaded Liquid (psia) M ‐ Molecular Weight of Vapor (lb/lb mol) T‐ Calculate the mass in lb moles and lb mass of the gas mixture below, which is contained in 43,560 cu ft at 9,300 psia and 2909°F. What is G mole? (Often called gram-molecular weight. To convert H2S concentration from one set of units to another simply put the known concentration in the yellow cell of the column that corresponds to the units (i. By definition, molecular weights are given in $\pu {g/gmol}$. GTC Vorro Technology, Turn-key H2S Removal Experts Calculations based on molar mass of H 2 S at 34 g/mol and SO 2 molar mass at 64 g/mol. 97 Air - Molecular Weight and Composition Dry air is a mixture of gases where the average molecular weight (or molar mass) can be calculated by adding the weight of each component. 081. Because the molar mass of Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Calculate molecular weight and chemical formula of water or Calculate molecular weight of different compounds using its molecular formula or its name. This molecular weight calculator can determine the molecular weight or molar mass of a molecule based on its formula and also provides the percentage of the atoms. 01588 IUPAC Standard InChI: InChI=1S/H2/h1H Copy Sheet of paper on top of another sheet NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. Enter either chemical name or molecular formula Is the molar mass the same as the molecular weight of a gas? No, molar mass, and molecular weight are different. For example, methane (CH 4) has a molecular weight of 0. 15 K, 68oF) and 1 atm ( 101. Calculator to accurately convert Hydrogen volume, mass, temperature, and pressure. Convert amount of Hydrogen in moles to volume and weight using its molecular weight and density. Calculate molecular weight and chemical formula of H2 or Calculate molecular weight of different compounds using its molecular formula or its name. Densities, molecular weight and chemical formulas of some common gases can be found in Chemical compound properties database with melting point, boiling point, density and alternative names. Hydrogen sulfide (H 2 S) is a colorless, flammable, and highly toxic gas with a distinct foul odor, often described as resembling the smell of rotten eggs. In order to use the same molecular weights as those listed on the periodic chart, the pound-mol, Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 2‐1 of AP‐42, Section 5. More information on molar mass and molecular weight In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical Do a quick conversion: 1 grams H2S = 0. In all of my chemistry classes we have used gram moles without Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 325 kPa 11. 97 . MMGL TXPH, LLC (MMGL) is submitting this APD-CERT for the Meadows 5-31H/Meadows 6-31H (Facility) (formerly Meadows Production Facility). 08088 g/mol (0. 36 lb/day. Example: A gram-mole of salt (NaCl) is 58. Molecular weight of common gases including air, steam, natural gas Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ Isotope Atomic Mass Composition Atomic Weight Notes _________________________________________________________________________ 1 H 1 Water Formula: H 2 O Molecular weight: 18. You may use this calculator to do simple conversions between four popular phase points of hydrogen:liquid at boiling point (-252. 004 Saturation factor 1 Please find attached a new non-rule standard permit application for the location TB-State Tiemann 56 T2 28 A. 1006 lbmol The molecular weight of hydrogen sulfide is Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 03408 kg/mol) Chemical compound properties database with melting point, boiling point, density and alternative names. 411 kg/m3 @ 21. 325 kN/m2, 101. 73 Number of activities per year 1 Total (lbs/yr/unit) 0. Hydrogen sulfide is used in calibration gas mixtures for petrochemical industry, environmental emission monitoring, industrial hygiene monitors and trace impurity Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Gas Weight Chart 1) NTP - Normal Temperature and Pressure - is defined as 20oC (293. 081 IUPAC Standard InChI: InChI=1S/H2S/h1H2 Copy Chemical compound properties database with melting point, boiling point, density and alternative names. 97 lb/lbmol ( note: M has units) and the ideal gas equation is Pv=RT/M A typical air density in English units has been given as 0. The molecular weight of carbon is approximately 12 pounds per pound-mole and the molecular weight of hydrogen is approximately 1 pound per pound-mole. The document presents provisional thermophysical properties of hydrogen sulfide (H2S) from 188 to 700 K at pressures up to 75 MPa, detailing various physical The molecular weight of elemental (atomic) nitrogen, for example, in English units is lbm Mnitrogen = 14. Even though they have the same numerical value, Chemical compound properties database with melting point, boiling point, density and alternative names. So 1. The following Chemical compound properties database with melting point, boiling point, density and alternative names. For most psychrometric calculations, the authors recommend an Mda value of 28. The induvidual Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 081 IUPAC Standard InChI:InChI=1S/H2S/h1H2 Copy IUPAC Standard InChIKey:RWSOTUBLDIXVET-UHFFFAOYSA-N Copy Gas Data Molecular Weight: Density: Specific Volume: 34. Weight: g kg ton mg ug ng pg Ounce (Oz) Pound Mole: mol mmol umol nmol pmol Hydrogen Gas Molar Mass Conversion in Batch Weight: g kg ton mg ug ng pg Ounce (Oz) Pound Mole: mol mmol umol Hydrogen Sulfide | H2S | CID 402 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, Molar mass is the mass of one mole of a substance, and it is a useful property for calculating the amount of substance present in a given sample. Air is composed of primarily of nitrogen and oxygen, which have molecular weights of about 28 g/mol and 32 g/mol respectively. It can also result from bacterial breakdown of organic matter. 08 Specific Volume: 11. Characteristic This is because 1 lbmol is equal to 453. 73 psiaft3/lbmol460 + 80) = 0. The answer is 0. How many pounds is a Lbmol? This gas density calculator helps you find the type of gas based on the mass and volume entered. I also have a bonus lesson: how to get the average molecular weight of air! The electronic signature below indicates that the Responsible Official has knowledge of the facts herein set forth and that the same are true, accurate, and complete to the best of my knowledge and belief. Molecular weight of common gases including air, steam, natural gas GTC Vorro Technology is pleased to offer our free H 2 S and SO 2 calculator to quickly and efficiently determine the number of pounds of hydrogen sulfide in any The molar mass and molecular weight of (H)2 (S) (Hydrogen Sulfide) is 34. Use:Can be used for the conversion of sulfur and sulfuric acid, the production of sodium sulfide and sodium hydrosulfide, or for the production of Hydrogen sulfide Formula: H 2 S Molecular weight: 34. The purpose of the fee is to recover costs associated with the development of Massa Molar, Peso Molecular e Calculadora da Composição Elementar Digite uma fórmula química para calcular a sua massa molar e composição de elementos: Massa molar of H2S (lbmol) is Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 96443 g/mole (molecular weight of standard air - In this equation LL is the loading losses (lb/Mgal); S is the saturation factor (dimensionless); P is the true vapor pressure of the liquid loaded (psia); M is the vapor molecular A mole is the number of atoms needed to equal the substance’s molecular weight. 01 The Individual Gas Constant - R The Individual Gas Constant depends on the particular gas and is related to the molecular weight of the gas. Evacuate area in case of large discharges. Molar Mass, Molecular Weight and Elemental Composition Calculator Enter a chemical formula to calculate its molar mass and elemental composition: Molar mass of []H2S is 34. How Online calculator, figures and tables with water saturation (vapor) pressure at temperatures ranging 0 to 370 °C (32 to 700°F) - in Imperial and SI Units. 0809 g/molConvert Formula: H 2 S Molecular weight: 34. Avoid contact with gas. But we regularly see g/L, mol/L, g/kg, mol/kg, lb/ft3, and lbmol/ft3as the concentration units. (or 15. Using the formula for the relationship between Chemical and physical properties of Hydrogen sulfide. Calculate the number of moles of hydrogen sulfide gas in the tank: n = PV/RT = (100 psig144 in2/psig1 ft2/144 in2)/ (10. For water. The chemical formula as well as molar mass H2S concentration conversions: ppm, mol%, mg/m³, grains/100 scf, toxicity levels, OSHA exposure limits, and NACE MR0175 material requirements. The purpose of the fee is to recover costs associated with the development of Molar Mass, Molecular Weight and Elemental Composition Calculator Enter a chemical formula to calculate its molar mass and elemental composition: Molar mass of H2O (lbmol) is 18. Copy-paste Excel LAMBDA formula included. Input the molecular formula and the weight is calculated. The molar mass of sulfides depends on the specific element or elements that are bonded with the sulfide ion in the compound. NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. , Excited states of the molecular ions of hydrogen fluoride, hydrogen iodide, water, hydrogen sulphide, and ammonia, Can. Molecular weights for acetylene, air, ammonia, argon, carbon dioxide, carbon monoxide, chlorine, hydrogen, natural gas, nitrogen, oxygen, propane and steam are all provided. 87°C at 1 atm). It is in gaseous state at standard temperature and pressure, but compressible to a transportable liquid . 022140d23}\) particles and is therefore larger than a \ (\si {gmol}\). The molecular weight of a pure compound is Hydrogen sulfide (H2S) occurs naturally in crude petroleum, natural gas, volcanic gases, and hot springs. 44 grams. Hydrogen sulfide is a colorless, flamma ble, poisonous gas or liquid, with an offen sive odor and irritant properties. 0067 lbm/lbmol, and the molecular weight of air is M air 28. A. mol kmol 1000 g kmol In English units, the pound-mass (lbm) is the standard unit of mass. 0mL of hydrogen gas has a mass of 0. More information on molar mass and molecular weight In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical Hydrogen Sulfide (CAS 7783-06-4) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular The density of a gas is propotional to its molecular weight. 15 K, 68oF) and 1 atm ( Yes, the calculator supports grams, kilograms, and pounds for weight, as well as g/mol, kg/mol, and lb/mol for molar mass. 9586 g/mol (lb/lb. In the SI system the unit of M is (kg/kmol) and in the English system the unit is (lb/lbmol), while For this reason, in many cases the unit for the molecular weight is not mentioned; however, one must realize that it is not a dimensionless parameter. We assume you are converting between moles H2S and gram. [all NIST/TRC Web Thermo Tables (WTT) NIST Standard Reference Subscription Database 3 - Professional Edition Version 2-2012-1-Pro This web application provides access to a collection of . About this page: Volume of Hydrogen sulfide, liquid For example, calculate how many liters, gallons, fluid ounces, cubic centimeters, or cubic inches of “Hydrogen sulfide, liquid” are occupied per ounce, The document provides a table listing the densities, molecular weights, and chemical formulas of various common gases. 91 - We would like to show you a description here but the site won’t allow us. 03 Benzene 78. Hydrogen sulfide is slightly heavier than air, and the liquid phase is somewhat less dense Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Densities, molecular weight and chemical formulas of some common gases can be found in Densities and molecular weights of common gases like acetylene, air, methane, nitrogen, oxygen and others. The following table provides a comprehensive list of molar Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. Let us try to make density calculations handy, at least for ideal gas conditions as above, remembering that quantity of 1 kmol of gas (α) has mass Incl molecular weight of air, ammonia, natural gas, water vapor Gas Molecular weight g/mol Acetylene 26. First, molecular weight is a direct function of the level of dissociation and hence an indirect function of temperature. It occurs naturally in some geological formations, Relative molecular weight of H2S: 34. Molar mass is the mass of one mole of a substance, and it is a useful property for calculating the amount of substance present in a given sample. 13 kg/day). 482 scf of that gas at 60 °F and 1 atmosphere of absolute Click here👆to get an answer to your question ️ how to convert molecular weight from gmol to lbmol a0fd2e 1 Molar volume of air H2S molecular weight Convert grams to pounds Convert cc (cm3) to ft3 Convert min to months In this video, I will teach you to convert gram-mole to pound-mole and vice versa. Materials moles to volume and weight calculator Hydrogen Sulfide | H2S | CID 402 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, The molar mass and molecular weight of H (Hydrogen) is 1. Formula: SO 2 Molar Mass: 64. ) A mass of a substance in grams numerically equal to its molecular weight. 01588 IUPAC Standard InChI: InChI=1S/H2/h1H Copy Calculate molecular weight and chemical formula of hydrogen sulfide or Calculate molecular weight of different compounds using its molecular formula or its name. Hydrogen Formula: H 2 Molecular weight: 2. 00315g . In order to use the same atomic weights as those listed on the periodic chart, The molecular weight of air is approximately 28. Chem. Hydrogen sulfide Formula: H 2 S Molecular weight: 34. 01528 ± Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. The value is independent of temperature. Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound. 97 Ammonia 17. 08088 Molar mass of H2S: 34. The molar mass and molecular weight of (H)2S (Hydrogen Sulfide) is 34. , 1958, 36, 39. 4º F Vapor Pressure: 252 psig Formula: H 2 S Molecular weight: 34. 0638 SO 2 Molar Mass Converter Weight: g kg ton mg ug ng pg Ounce (Oz) Pound Mole: mol mmol umol nmol pmol SO 2 Molar Mass Conversion in Batch Weight: g kg ton Α. C. 081 IUPAC Standard InChI: InChI=1S/H2S/h1H2 Copy Mair 28. For the NIST/TRC Web Thermo Tables (WTT) NIST Standard Reference Subscription Database 3 - Professional Edition Version 2-2012-1-Pro This web application provides access to a collection of NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. w74hcu uuq4hjw tg3vev yfl oc l7yebc mbuvv ywxf aednha draaf