zinc stearate
Date：2021-12-17 Categories：Related Application Product
| 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:; |
