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Caustic Soda (Sodium Hydroxide)

Caustic Soda (Sodium Hydroxide)

CAS Number: 1310-73-2

Molecular Formula: HNaO

Caustic Soda Pearls 99%Caustic Soda FlakesGHS / CLP LabeledReach RegisteredSodium Hydroxide FlakesAlkali membrane Grade CausticChlor-Alkali

About Caustic Soda (Sodium Hydroxide)

Caustic Soda (CAS 1310-73-2), chemically known as Sodium Hydroxide, is a highly versatile and powerful alkaline compound increasingly utilized across advanced material applications, chemical manufacturing, water treatment matrices, and specialized food processing systems. Available in high-specification physical forms ...

Caustic Soda (Sodium Hydroxide) Specifications

CAS Number
1310-73-2
Molecular Formula
HNaO
IUPAC Name
sodium;hydroxide
Canonical SMILES
[OH-].[Na+]
InChI Key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
PubChem CID
14798
EINECS Number
215-185-5
MDL Number
12352300
UNSPSC Code
12352300
eClass
38110102 (Caustic Soda - solid form)
NACRES
NA.21
HSN No
28151100 (solid), 28151200 (aqueous solution)
Melting Point
318°C (solid)
Appearance
White flakes, pellets, or colorless solution
Boiling Point
1390°C
pH: ~14
(1% solution)
GHS Classification
Skin Corrosion/Irritation: Category 1A Serious Eye Damage: Category 1
Hazard Statements
H314: Causes severe skin burns and eye damage
Precautionary Statements
P280, P301, P330, P331, P305, P351, P338
DOT / UN Number
UN 1823 (Solid) / UN 1824 (Solution)
Hazard Class (GHS)
Corrosive (Category 1)

Chemical Industry

Used in synthesis of sodium-based compounds, petrochemicals, and dyes

Water Treatment

pH adjustment, neutralization of acidic wastewater

Pulp & Paper

Delignification in Kraft process for paper manufacturing

Soap & Detergents

Saponification of fats and oils

Alumina Processing

Dissolution of bauxite in the Bayer process

Food processing

Processes such as fruit and vegetable peeling, chocolate and cocoa processing, caramel colouring production, poultry scalding, and thickening ice cream

Cleaning agent

Sanitation processes for food equipment (Clean-In-Place or CIP systems)

Storage

Keep in dry, well-ventilated area away from acids

Stacking

Drums/bags 2–3 high (solid); tanks for liquid

Transport

UN certified containers, corrosive materials transport

Packaging

25 kg bags, 50 kg drums (solid); IBC tanks, bulk tankers (liquid)

Container

Containers must be hermetically sealed

Incompatibilities

Acids (violent exothermic reaction), Aluminum, Tin, Zinc (forms explosive Hydrogen gas), Water (violent exothermic dissolution)

COA
Download
MSDS
Download

Caustic Soda (Sodium Hydroxide) FAQs

Minimum Order Quantity

25 kg (pilot) · 1 MT (commercial)

Lead Time

3 – 5 weeks ex-works

Incoterms

FOB · CIF

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

Regional Availability

India · EU · Middle East · Southeast Asia

Documentation

SDS · COA · TDS available on request

Compliance & Quality

REACH registered*

GHS/SDS available

ISO 9001:2015 site*

RoHS compliant*

Global sourcing network

Consistent quality & reliability

End-to-end technical support

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