Chemical Name: Sodium hydroxide

CAS NO: 1310-73-2

Molecular formula: NaOH

Molecular weight: 39.9971

Specification

Purity：98.5%

Melting point: 318 °C (591 K)

Physical properties: Sodium hydroxide is a white translucent crystalline solid. Its aqueous solution is astringent and greasy.

Deliquescence: Easily deliquescence in air.

Water absorption: Solid alkali is very hygroscopic, exposed to air, absorb water molecules in the air, and eventually will be completely dissolved into a solution, but liquid sodium hydroxide has no hygroscopic property.

Solubility: Very soluble in water, dissolving a lot of heat. Soluble in ethanol and glycerol.

Uses: Sodium hydroxide (NaOH) is extremely versatile. Used for paper making, soap, dye, rayon, aluminum, petroleum refining, cotton fabric finishing, coal tar product purification, and food processing, wood processing and machinery industry.

Storage and transportation: solid sodium hydroxide into 0.5 mm thick steel drums tightly sealed, the net weight of each barrel is not more than 100 kg; Plastic bag or two layer kraft paper bag outside full opening or middle opening steel bucket; Thread mouth glass bottle, iron lid pressure mouth glass bottle, plastic bottle or metal bucket (jar) outside ordinary wooden box; Threaded glass bottles, plastic bottles or tinned steel barrels (cans) full of bottom plate lattice box, fiberboard box or plywood box; Tin plated sheet steel bucket (can), metal bucket (can), plastic bottle or metal hose outside corrugated carton. Packaging containers should be complete, sealed, and clearly marked "corrosive goods". For railway transportation, steel drum packaging can be transported in open cars. The packing should be complete and the loading should be safe. During transportation, ensure that the container does not leak, collapse, fall, damage, moisture-proof and rainproof. If the packaging container is found to be corroded, broken, perforated, melted and drained, it should be replaced immediately or shipped for use as soon as possible. Container damage can be repaired by tin welding. It is strictly prohibited to mix with inflammable or combustible materials, acids and edible chemicals. Transportation vehicles should be equipped with leakage emergency treatment equipment during transportation.