CAS 7783-20-2 Ammonium sulfate, CP,98% - Materials / Alfa Chemistry

NAVIGATION

Ammonium sulfate, CP,98%

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Catalog Number

ACM7783202-1

CAS Number

7783-20-2

Product Name

Ammonium sulfate, CP,98%

Structure

Category

Other Glass and Ceramic Materials

Description

Ammonium sulfate is a white odorless solid. Sinks and dissolves in water. (USCG, 1999);DryPowder; DryPowder, PelletsLargeCrystals; DryPowder, PelletsLargeCrystals, Liquid; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, Liquid; WetSolid;White powder, shining plates or crystalline fragments

IUPAC Name

diazanium;sulfate

Molecular Weight

132.14g/mol

Molecular Formula

(NH4)2SO4;(NH4)2SO4;H8N2O4S

Canonical SMILES

[NH4+].[NH4+].[O-]S(=O)(=O)[O-]

InChI

InChI=1S/2H3N.H₂O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)

InChI Key

BFNBIHQBYMNNAN-UHFFFAOYSA-N

Melting Point

Mp 513 ° (sealed tube);280 °C (decomposes)

Density

1.78 at 59 °F (USCG, 1999);1.77 g/cu cm

Solubility

Freely soluble in water, insoluble in ethanol;In water, 76.4 g/100 g water at 25 °C;In water: g ammonium sulfate/100 g saturated solution: 41.22 at 0 °C; 43.47 at 25 °C; 50.42 at 100 °C;In water (g/100 g H₂O): 70.6 at 0 °C; 76.7 at 25 °C; 103.8 at 100 °C;Insoluble in acetone, ethanol;Solubility decreases with addition of ammonia: at 10 °C, from 73 g in 100 g of water, to 18 g in 100 g of 24.5% aqueous ammonia

Color/Form

White or brown orthorhombic crystals;Orthorhombic crystals or white granules;Brownish gray to white crystals according to degree of purity

Complexity

62.2

Corrosivity

Does not attack iron or aluminum /Ammoniacal solutions/

Covalently-Bonded Unit Count

EC Number

231-984-1;231-984-1;269-077-8

Exact Mass

132.020478g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

Ammonium Sulfate;Sulfate, Ammonium

Monoisotopic Mass

132.020478g/mol

Odor

Odorless

Other Experimental

Average specific heat capacity: 1.423 J/g-K at 2-55 °C; heat of solution on dissolution of 1 mol in 400 mol water: +9.92 kJ at 18 °C; integral heat of solution: +6.57 kJ/mol at 30 °C; differential heat of solution for saturated solution: +6.07 kJ/mol at 30 °C; deliquesces above 80% relative humidity;Decomposes above 280 °C

Refractive Index

Index of refraction: 1.521, 1.523, 1.533

Rotatable Bond Count

Stability

Stable under recommended storage conditions.

UNII

SU46BAM238

Vapor Pressure

Vapor pressure of saturated solution: 0.901 kPa at 10 °C; 1.319 kPa at 15 °C; 1.871 kPa at 20 °C; 2.573 kPa at 25 °C; 3.439 kPa at 30 °C; 4.474 kPa at 35 °C

MSDS

Download MSDS

COA

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Spec Sheet

Download Spec Sheet

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