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Sodium hydroxide CAS#1310-73-2

· Highly versatile chemical – Sodium hydroxide is widely used across multiple industries, including paper, textiles, soaps, and detergents.

· Strong alkaline properties – As a highly corrosive strong base, it forms an alkaline solution when mixed with water and dissolves in methanol and ethanol.

· Effective in household and industrial applications – It is used in household products like alkaline drain cleaners as well as large-scale industrial processes.

· Hygroscopic and reactive – Sodium hydroxide is deliquescent, absorbing water vapor and acidic gases such as carbon dioxide, which enhances its chemical reactivity.

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Product Details

Product Description of Sodium Hydroxide CAS#1310-73-2

Sodium hydroxide, also known as caustic soda, has the chemical formula NaOH. It is a highly corrosive strong base, typically available in white flakes or granules. It readily forms an alkaline solution when mixed with water and is also soluble in methanol and ethanol. This deliquescent substance absorbs moisture from the air as well as acidic gases like carbon dioxide.

Sodium hydroxide is a widely used chemical with a broad range of applications and is essential in many industrial processes. It is commonly employed in the production of wood pulp paper, textiles, soaps, and other detergents, and is also used in household products such as alkaline drain cleaners.

Sodium hydroxide CAS#1310-73-2

Parameters

Melting point	681 °C(lit.)
Boiling point	1390°C
density	1.515 g/mL at 20 °C
vapor density	<1 (vs air)
vapor pressure	1 mm Hg ( 745 °C)
refractive index	1,473-1,475
Fp	176-178°C
storage temp.	room temp
solubility	H2O: 1 M at 20 °C, clear, colorless
form	beads
color	White
Specific Gravity	2.13
PH Range	13 - 14
PH	10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution);
Odor	Odorless
Water Solubility	SOLUBLE
λmax	λ: 260 nm Amax: 0.015 λ: 280 nm Amax: 0.01
Decomposition	176-178 ºC
Sensitive	Air Sensitive & Hygroscopic
Merck	14,8627
Dielectric constant	57.5（25℃）
Exposure limits	TLV-TWA air 2 mg/m3 (OSHA); ceiling 2 mg/m3 (ACGIH) and 2 mg/m3/15 min (NIOSH).
Stability:	hygroscopic
CAS DataBase Reference	1310-73-2(CAS DataBase Reference)
NIST Chemistry Reference	Sodium hydroxide(1310-73-2)
EPA Substance Registry System	Sodium hydroxide (1310-73-2)

Safety Information

Hazard Codes	C,Xi
Risk Statements	36/38-35-34
Safety Statements	26-45-37/39-24/25-36/37/39
RIDADR	UN 1824 8/PG 2
OEL	Ceiling: 2 mg/m3
WGK Germany	1
RTECS	TT2975000
F	8
TSCA	Yes
HS Code	2815 11 00
HazardClass	8
PackingGroup	II
Hazardous Substances Data	1310-73-2(Hazardous Substances Data)
Toxicity	LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas)
IDLA	10 mg/m3

Product Application of Sodium Hydroxide CAS#1310-73-2

Sodium hydroxide has a wide range of applications. In chemical experiments, besides being used as a reagent, its strong hygroscopicity allows it to serve as an alkaline desiccant. Caustic soda is widely utilized across the economy and is essential for many industrial sectors. The largest consumer of caustic soda is the pharmaceutical industry, followed by papermaking, aluminum smelting, tungsten smelting, rayon and artificial cotton production, and soap manufacturing.

Additionally, significant quantities of caustic soda are employed in the production of dyes, plastics, pharmaceuticals, and organic intermediates, as well as in rubber recycling, gold production, water electrolysis, and the manufacture of inorganic salts, borax, chromium salts, manganates, phosphates, and more.

Industrial sodium hydroxide must comply with national standard GB209-2006; industrial ion exchange membrane sodium hydroxide with GB/T11199-89; chemical fiber sodium hydroxide with GB11212-89; and edible sodium hydroxide with GB5175-85.

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Sodium hydroxide CAS#1310-73-2