 Caustic Soda
Properties: solid; flake; 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 soda solid GB209-93
specification & grade |
sodium hydroxide by ion membranes process |
diaphragmatic 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: caustic soda flake
| specification & grade |
membrane process |
diaphragmatic process |
NaOH % >= |
99 |
96.0 |
Na2CO3 % <= |
1.0 |
1.3 |
NaCl % <= |
0.3 |
2.7 |
Fe2O3 % <= |
0.01 |
0.008 |
packing: 25kg net, plastic woven bag lined with plastic bag
Sodium hydroxide by ion membrane process (solid, flake)
molecular formula |
NaOH |
molecular weight |
39.997(according to international atomic weight) |
appearance |
main body white, allowing slight yellow, gloss. |
application |
mainly used in synthetic fiber, papermaking, organic synthesis, textile, artificial silks, pharmacy and metallurgy. |
quality specification |
Jin Q/BH 3039-96 |
package |
solid sodium hydroxide by ion membrane process, net 250kg per iron drum.
flaky sodium hydroxide by ion membrane process, net 25kg per bag of two plastic woven bags lined with PE bag. |
notes |
solid sodium hydroxide by ion membrane process, stored in a dry storehouse, avoided damage, pollution, moisture, tough with acid, prevented from impact in transporting. |
Liquid caustic soda
molecular formula |
NaOH |
molecular weight |
39.997(according to international atomic weight) |
standard |
GB 209-93
GB 11213.1-89 the measurement of content of sodium hydroxide in synthetic fiber.
GB 11213.2-89 the measurement of content of sodium chloride in sodium hydroxide in synthetic fiber. |
uses appearance |
transparent liquid mainly used in synthetic fiber, papermaking, organic synthesis, textile, pharmacy, metallurgy. |
quality specification |
Jin Q/BH 3036-96 |
package |
liquid sodium hydroxide, packed in the tank car. |
notes |
the special tank car must be used for storage. the tank car used for transportation |
packing |
liquid tank car |
standard of identity of liquid caustic soda
specification & grade |
membrane process |
diaphragrn process |
I |
II |
III |
super |
1st |
standard |
super |
1st |
standard |
NaOH % >= |
45.0 |
48.0 |
50.0 |
42.0 |
42.0 |
42.0 |
NaCl % <= |
0.012 |
0.015 |
0.018 |
1.6 |
1.8 |
2.0 |
Na2CO3 % <= |
-- |
-- |
-- |
0.3 |
0.4 |
0.6 |
Fe2O3 % <= |
0.003 |
0.003 |
0.004 |
0.004 |
0.007 |
0.01 |
|
