| post date: |
dec 16,2021 |
| expiry date: |
dec 16,2022 |
| detailed description: |
cas no. :557-05-1
quantity: 100metric tons
specs:industrial grade；usp-29；
1. product introduction
name：zinc stearate
molecular formula: c36h70o4zn
cas no.:557-05-1
einecs no.:209-151-9
appearance: white powder
2.specification
(1) industrial grade, test items | specification | appearance | (white and fine powder) | assay of zn | 10.3%~11.3% | free acid | ≤1% | loss on drying | ≤1.0% | melting point | 120±5℃ | particle size | 99.5% 325(≥99.5% through 325 mesh) |
(2)pharmaceutical grade
operative norm: usp29 bp2005 1. usp29 test items | specification | zno | 12.5-14 | alkali and alkali earth | ≤1.0% | arsenic | ≤1.5ppm | lead | ≤0.001% | organic volatile impurities | conform |
2. bp 2005 test items | specification | fat acid | 195-210 | melting point | 119-1230c | density (kg/l) | 0.20-0.28 | not through 325mesh | ≤0.5 | moisture | ≤2 | zn | 10~12 | chloride | ≤250ppm | sulfates | ≤0.6 | cadmium | ≤5ppm | lead | ≤25ppm | acidity and alkali | conform |
it is used as lubricant, stabilizer, thickener, accelerant etc.
3. package and storage:
packing: 20kgs/bag
storage: tightly sealed in a clean,cool,dry area, keep away from strong, direct light. |
| cas registry number: |
557-05-1 |
| synonyms: |
;zinc octadecanoate;zinc stearate/zinc distearate;octadecanoic acid - zinc (2:1);znst; |
| molecular formula: |
c36h70o4zn |
| molecular weight: |
632.3635 |
| molecular structure: |
|
| hazard symbols: |
![]() xi:irritant;
|
| risk codes: |
r37:;
|
| safety description: |
s22:;
s26:;
s36/37/39:;
s38:;
|
