Name: Liquid caustic soda Sodium hydroxide CAS#1310-73-2
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Liquid caustic soda Sodium hydroxide CAS#1310-73-2

High Purity and Clear Appearance: Pure liquid caustic soda is a colorless and transparent liquid with well-defined physical properties.

Flexible Concentration Options:Available in 30–32%, 40–42%, and 50% concentrations to meet different application requirements.

Stable Physical Properties:Features a relative density of 1.328–1.349, a melting point of 318.4°C, and a boiling point of 1390°C.

Widely Used Industrial Alkali:As a strong inorganic alkaline substance, liquid caustic soda is widely used across various industrial processes.

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Product Description

Product Description-Liquid caustic soda Sodium hydroxide CAS#1310-73-2

Liquid caustic soda is aqueous sodium hydroxide (NaOH). Pure liquid caustic soda is a clear, colorless liquid with a relative density of 1.328–1.349, melting point of 318.4°C and boiling point of 1390°C. Industrial grades contain impurities including sodium chloride, sodium carbonate and trace iron oxide, typically supplied at 30–32%, 40–42% and 50% concentrations. It is categorized as Class I inorganic alkaline corrosive material.

Product Applications-Liquid caustic soda Sodium hydroxide CAS#1310-73-2

Liquid alkali is a fundamental bulk chemical with broad industrial uses. In chemical manufacturing, it produces formic acid, oxalic acid, borax, phenol, sodium cyanide, soap, synthetic fatty acids and detergents. For textile printing & dyeing, it acts as desizing, scouring and mercerizing agent, and solvent for vat and azuron blue dyes. In metallurgy, it makes aluminium hydroxide, alumina and metal surface treatment agents. It works as acid neutralizer, decolorizer and deodorant for instrument production, and starch gelatinizer / neutralizer in adhesives. It also finds wide applications in enamel, pharmaceutical, cosmetic, leather, coating, pesticide and glass sectors.

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Product Data

Chemical Properties-Liquid caustic soda Sodium hydroxide CAS#1310-73-2

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
Odor	Odorless
PH Range	13 - 14
PH	10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution);
Water Solubility	SOLUBLE
Sensitive	Air Sensitive & Hygroscopic
Decomposition	176-178 ºC
λmax	λ: 260 nm Amax: 0.015
λmax	λ: 280 nm Amax: 0.01
Merck	148627
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-Liquid caustic soda Sodium hydroxide CAS#1310-73-2

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
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

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