Ammonium NH 4

Ammonium Phosphate Dibasic NF Crystals

Jost Code: 2026

Ammonium Phosphate can be used as a laboratory reagent or a pharmaceutical buffer. Product specifications, SDSs, and certifications are available under Additional Information.

Chemical Formula
(NH4)2HPO4
CAS Number
7783-28-0
Molecular Weight
132.1
Use
Laboratory reagent; Pharmaceutical buffer
Description
White crystals
Containers
150 lb. fiber drums; 25 kilogram packs EU only
Storage
Store in a clean, dry warehouse in the original unopened containers.
Revision Date
5/19/15
Identification
Test for Ammonium
Positive
Test for Phosphate
Positive
Assay
96.0-102.0%
pH of 1% Solution
7.6-8.2
Chloride (Cl)
0.03% maximum
Arsenic (As)
3 ppm maximum
Heavy Metals (as Pb)
0.001% maximum
Sulfate (SO4)
0.15% maximum
Agglomeration
Ammonium Phosphate Dibasic crystals tend to agglomerate. Agglomeration is a normal occurrence for this chemical.
Microbial Test Results
Aerobic Plate Count
1000 cfu / gram maximum
Yeast and Mold Count
100 cfu / gram maximum
Total Coliforms
Negative