168355

Ammonium sulfate

• Synonym(s): (NH₄)₂SO₄, Mascagnite
• Linear Formula: (NH₄)₂SO₄
• CAS Number: 7783-20-2
• Molecular Weight: 132.14
• MDL number: MFCD00003391
• UNSPSC Code: 12352314
• NACRES: NA.25

Properties

• assay: >99% (formol method)
• Quality Level: 100
• form: crystals (Fine)
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; desiccated (hygroscopic)
• color: white
• mp: >280 °C (dec.) (lit.)
• solubility: water: 1 M
• density: 1.77 g/mL at 25 °C (lit.)
• cation traces: heavy metals: <5 ppm
• shipped in: ambient
• storage temp.: 10-30°C
• SMILES string: N.N.OS(O)(=O)=O
• InChI: 1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
• InChI key: BFNBIHQBYMNNAN-UHFFFAOYSA-N

Description

General description

A 5% aqueous solution has a pH of 5.0-6.0. Commonly used for protein precipitation/purification.

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, store at room temperature. Stock solutions are stable for up to 1 year at room temperature.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable