caustic soda/sodium hydroxide
Product Description
|
Specifications
1.Caustic soda
2.solid; liquid; white or light blue
3.99.5% min , 99% min
4.Cas no.: 1310-73-2
5.25kgs per bag
Caustic soda
Cas no.: 1310-73-2
properties:solid; liquid; white or light blue; strong corrosion, water absorption from the air. uses: mainly used in the fields of metallurgy, petroleum, chemical industry, textile, papermaking, printing and dyeing pharmacy, soap, etc.
Standard of identity: Caustic Solid GB209-93
| name of specification /grade |
sodium hyroxide by ion membrance process
|
diaphragrn process
|
|
super
|
1st
|
super
|
1st
|
standard
|
| NaOH %≥ |
99.5
|
99.0
|
96.0
|
96.0
|
95.0
|
| Na2CO3 %≤ |
0.45
|
0.5
|
1.3
|
1.4
|
1.6
|
| NaCl %≤ |
0.03
|
0.05
|
2.7
|
2.8
|
3.2
|
| Fe2O3 %≤ |
0.004
|
0.006
|
0.008
|
0.01
|
0.02
|
Standard of identity of flaky caustic soda flakes:
| name of specification grade |
membrance process
|
diaphragrn process
|
| NaOH %≥ |
99
|
96.0
|
| Na2CO3 %≤ |
1.0
|
1.3
|
| NaCl %≤ |
0.3
|
2.7
|
| Fe2O3 %≤ |
0.01
|
0.008
|
SKYPE ruthwhite09
superchem9n(a)taixubio-tech dot com
Here is the specification:
|
TEST ITEM
|
Unit
|
Standard
|
Results
|
|
ZnO (dry basis)
|
%≥
|
99.7
|
99.7
|
|
Zn(metal)
|
%
|
0
|
0
|
|
Pbo
|
%≤
|
0.037
|
0.015
|
|
Mn
|
%≤
|
0.0001
|
0.0001
|
|
Cupric oxide(Counted by cu)
|
%≤
|
0.0002
|
0.0002
|
|
Hcl insoluble matter
|
%≤
|
0.006
|
0.005
|
|
Loss of ignition
|
%≤
|
0.20
|
0.18
|
|
Residue on sieve 45μ
|
%≤
|
0.10
|
0.10
|
|
Water insoluble matter
|
%≤
|
0.10
|
0.08
|
|
105℃ volatile content
|
%≤
|
0.30
|
0.24
|
|
|
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