Specification Sheet
Product Name Ammonium sulfate,
analytical standard, for Nitrogen Determination According to Kjeldahl Method, traceable to NIST SRM 194
Product Number 59845
Product Brand SIAL
CAS Number 7783-20-2
Molecular Weight 132.14
 
TEST SPECIFICATION
APPEARANCE (COLOR) Colorless or White
APPEARANCE (FORM) Crystals
TITRATION 99.5 - 101.0 %
TITRATION (METHOD) N-Determination according to Kjeldahl
Total Kjeldahl Nitrogen 21.20 +/- 0.10 %
(traceable to NIST SRM 194)
SOLUBILITY (COLOR) Colorless
SOLUBILITY (TURBIDITY) Clear
SOLUBILITY (METHOD) 1M IN WATER
PH 5.0 - 6.0
LOSS ON DRYING ≤ 0.1 %
EXPIRY PERIOD 36 MONTHS