Sodium hydroxide
Alias: caustic soda
Molecular formula: naoh
Cas no. : 1310-73-2
Hs: 2815110000
Hazard class: 8
Purity:
1.Caustic soda solid : 99%min, 96%min
2.Caustic soda liquid : 32%, 50%
Appearance:
1.Colorless to white, odorless solid (flakes, beads, granular form)
2.Transparent colorless liquid
Grade standard: industrial grade

Quality standard:
Standard: national standard gb 209-2006
Manufacture as per customer’s special demand
Accept third part inspection
Applications:
Used to neutralize acids, produce sodium salts, hydrolyze fats to make soaps, and precipitate metals; large amounts are used in petroleum refining, rayon production, and rubber reclaiming;
Also used in metal cleaning, electroplating, processing cotton fabrics, and bleeching;
Used in photography (developing bath);
In semiconductor manufacturing, sodium hydroxide is used to "develop" the pattern in the photoresists and also as a wet echant. Caustic soda is used in hide preparation for leather production;