| ≥1 piece |
Benzoic Acid is weak, but stronger than fatty acid. Their chemical properties are similar, both can form salt, esters, acyl halide, acid amides, acylation etc., and can not be oxidized easily.
|
ITEM |
STANDARD |
RESULT |
|
Characteristics |
White crystallized powder |
Passing test |
|
Content ≥% |
99.5 |
99.51 |
|
Melting point |
121-124°C |
123.5°C |
|
Loss on drying ≤ % |
0.5 |
0.3 |
|
Sulfate ≤ % |
0.1 |
0.1 |
|
Burnt Residue ≤ PPM |
300 |
288 |
|
Chlorides ≤ % |
0.02 |
0.02 |
|
Heavy metals(As Pb) ≤ PPM |
10 |
9 |
|
Arsenic ≤% |
0.0003 |
0.0003 |
|
Lead ≤ ppm |
5 |
3.25 |
|
Mercury ≤ ppm |
1 |
0.04 |
|
Oxidisable substances |
Passing test |
Passing test |
|
Carbonisable substances ≤ |
Y5 |
Y5 |
|
Colour of solution ≤ |
B9 |
B9 |