Ammonium sulfate
SIAL/59845 - analytical standard, for Nitrogen Determination According to Kjeldahl Method, traceable to NIST SRM 194
Synonym: Mascagnite
CAS Number: 7783-20-2
Empirical Formula (Hill Notation): H8N2O4S
Molecular Weight: 132.14
EC Number: 231-984-1
MDL Number: MFCD00003391
Linear Formula: (NH4)2SO4
Product Type: Chemical
| assay | ≥99.5% |
| density | 1.77 g/mL at 25 °C (lit.) |
| format | neat |
| grade | analytical standard |
| impurities | 21.20%±0.10% total Kjeldahl nitrogen |
| InChI | 1S/2H3N.H2O4S/c;;1-5(2,3) |
| InChI key | BFNBIHQBYMNNAN-UHFFFAOYSA |
| loss | ≤0.1% loss on drying, 110°C |
| mp | >280 °C (dec.) (lit.) |
| pH | 5.0-6.0 (25 °C, 1 M in H2O) |
| quality | traceable to NIST SRM 194 |
| Quality Level | 100  |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | N.N.OS(O)(=O)=O |
| solubility | soluble, clear, colorless |
| Application: | Ammonium sulfate may be used as a standard solution to determine nitrogen loss in the Kjeldahl analysis which acts as a reference method to determine accurate protein content in dairy products. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% |
| mp | >280 °C (dec.) (lit.) |
| Density | 1.77 g/mL at 25 °C (lit.) |
| UNSPSC | 85151701 |