Purified Sodium Hydroxide, Grade A, B

(sodium hydrate, caustic soda)

GOST 11078-78 with rev. 1-3

CHEMICAL FORMULA: NaOH

APPEARANCE:

Transparent colorless liquid.

SPECIFICATIONS:
INDICATOR NAME
STANDARD VALUE
Grade А
Grade B
Content of sodium hydroxide (NaOH), wt%, min.
46
45
Sodium carbonate (Na2CO3) content, wt%, max.
0.15
0.20
Content of sodium chloride (NaCl), wt%, max.
0.007
0.01
Content of sulfates (SO4), wt%, max.
0.002
0.005
Content of silicic acid (SiO2), wt%, max.
0.002
0.008
Iron (Fe2O3) content, wt%, max.
0.0007
0.001
Mercury (Hg) content, wt%, max.
0.00007
0.00009
Aluminum (Al2O3) content, wt%, max.
0.002
0.003
Calcium (Ca) content, wt%, max.
0.0014
0.0014
Barium (Ba) content, wt%, max.
0.0001
0.0001
Magnesium (Mg) content, wt%, max.
0.0001
0.0001
Manganese (Mn) content, wt%, max.
0.00001
0.00001
Copper (Cu) content, wt%, max.
0.00001
0.00001
Nickel (Ni) content, wt%, max.
0.00001
0.00004
Lead (Pb) content, wt%, max.
0.00002
0.00002
Content of sodium chlorate (NaClO3), wt%, max.
0.0001
0.005
Light transmission index, %, min.
93
90

Note:
1. The specified weight content values of impurities are given with reference to 100 % product.
2. For the production of high-purity ion exchange resins, the content of sodium chloride in the purified sodium hydroxide should not exceed 0.005 % by weight.
3. For the production of chemical fibers and non-food cellulose film, potassium content in both grades should be max. 0.03 % by weight.
4. Upon agreement with the customer, purified sodium hydroxide of top and 1st grades can be made with potassium content of max. 0.1 % by weight.

USES:

Grade A is used in the production of chemical threads and fibers, ion-exchange resins, reagents, and in the medical industry. Grade B is used in the production of non-food cellulose film, pure metals; in pulp and paper industry, for the production of mineral fertilizers.

PACKAGING:

Rail tank cars, tank trucks and drums made of steel grade Х18Н10Т (GOST 5632-72), of common steel with rubber-lined interior, special containers of 1,000 dm3 consisting of a metal frame, a wooden pallet and a plastic tank.

TRANSPORTATION AND STORAGE:

By any means of transportation in accordance with the dangerous goods shipping regulations applicable for the particular means of transportation. Store in closed containers made of alkali-resistant materials. Guaranteed shelf life is three years from the date of manufacture.

SPECIAL PROPERTIES:

Non-combustible, non-explosive caustic substance, hazard class 2. Causes chemical burns on contact with skin.

ADDITIONAL DOCUMENTATION:
PDF - Safety Data Sheet Safety Data Sheet

CONTACTS:
Phone: +7 (8442) 40-66-09, 40-66-11
Fax: +7 (8442) 40-66-10
E-mail: ves@kaustik.ru



PDF - Specifications Specifications in PDF version