30% 35% 48% 50% Caustic Soda Liquid NaOH CAS No.:1310-73--2

Other Names: Sodium Hydroxide Liquid,Sodium Hydroxide Lye,Caustic Soda Lye,Caustic Soda Solution,Sodium Hydroxide Solution

Molecular Formula: NaOH

UN No.: 1824

HS No.: 2815120000

CAS No.: 1310-73--2

EINECS No.: 215-185-5

Hazard Class: 8

Purity: 30% 35% 48% 50%

Appearance: Colorless liquid

Physical and Chemical Properties:Pure sodium hydroxide is a colorless crystalline solid that melts at 318 °C (604 °F) without decomposition, and with a boiling point of 1,388 °C (2,530 °F). It is highly soluble in water, with a lower solubility in polar solvents such as ethanol and methanol.[16] NaOH is insoluble in ether and other non-polar solvents.

Similar to the hydration of sulfuric acid, dissolution of solid sodium hydroxide in water is a highly exothermic reaction[17] where a large amount of heat is liberated, posing a threat to safety through the possibility of splashing. The resulting solution is usually colorless and odorless. As with other alkaline solutions, it feels slippery with skin contact due to the process of saponification that occurs between NaOH and natural skin oils.

Grade Standard: Industrial Grade,Food Grade,Reagent Grade

ITEM	SPECIFICATION
caustic soda liquid	NAOH(Min)	NA2CO3(Max)	NACL(Max)	FE2O3(Max)
50%	49
48%	48
32%	32

Note: The above specification is satisfy with GB-209-2006,also accord with European and American Standards.We can accept the Third part test.Such as BV,SGS etc.

Application:

is a popular strong base used in industry. Around 56% of sodium hydroxide produced is used by industry, 25% of which is used in the paper industry. Sodium hydroxide is also used in the manufacture of sodium salts and detergents, pH regulation, and organic synthesis. It is used in the Bayer process of aluminium production.In bulk, it is most often handled as an aqueous solution,since solutions are cheaper and easier to handle.

Sodium hydroxide is used in many scenarios where it is desirable to increase the alkalinity of a mixture, or to neutralize acids.

For example, in the petroleum industry, sodium hydroxide is used as an additive in drilling mud to increase alkalinity in bentonite mud systems, to increase the mud viscosity, and to neutralize any acid gas (such as hydrogen sulfide and carbon dioxide) which may be encountered in the geological formation as drilling progresses.

Another use is in Salt spray testing where pH needs to be regulated. Sodium hydroxide is used with hydrochloric acid to balance pH. The resultant salt, NaCl, is the corrosive agent used in the standard neutral pH salt spray test.

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