Appearance |
White to slightly creamy white hygroscopic powder. |
Complies |
Identification |
A. An orange-yellow precipitate is formed. |
Complies |
|
B. A pale blue precipitate is formed. |
Complies |
|
C. A deep red colour is produced. |
Complies |
pH(1-20) |
3.0~7.0 |
6.7 |
Water |
≤5.0% |
1.6% |
Particle Size |
40目 |
Complies |
Residue on ignition |
≤0.1% |
Complies |
Lead* |
≤10ppm |
Complies |
Aldehydes |
≤1ppm |
<0.005% |
Hydrazine |
≤1ppm |
<1ppm |
N-Vinyl-2-pyrrolidinone |
≤0.2% |
<0.2% |
K-Value |
81.0-97.2 |
92.7 |
Nitrogen |
11.5%-12.8% |
12.2% |
TAMC |
≤10⁵ cfu/g |
<10cfu/g |
TYMC |
≤10⁵ cfu/g |
<10cfu/g |
E. Coli |
Negative in (1g) |
Negative |