Sodium aluminate

CAS Number

11138-49-1

EC Number

234-391-6

Industries: Water & Wastewater Treatment Textiles, Leather & Paper

What is Sodium aluminate?

Sodium aluminate (CAS 11138-49-1), also known as sodium metaaluminate, is an inorganic alkali salt used in water treatment, construction, and industrial processing.

Where is Sodium aluminate used?

Water treatment: coagulation aid removing suspended solids, phosphates and turbidity
Dosed alongside aluminum sulfate to optimize floc formation
Construction: accelerates setting of cement and concrete mixes
Shotcrete: rapid hardening
Paper and pulp: improves fiber retention and sizing efficiency
Textile and leather: mordant and surface treatment agent improving dye uptake and finish fixation
It functions as a coagulant, flocculant and pH regulator.

Commercial specifications

Liquid grades around 40–45% active content
Technical and industrial grades for water treatment and construction
Food-contact and higher-purity grades with tighter impurity controls

Other Names (Synonyms)

Request Quote

What are the physical properties of Sodium aluminate?

Density 1.44 g/cm³ @ Temp: 20 °C

Appearance solid

Form powder

How is Sodium aluminate classified and handled safely? Learn More

Danger

GHS03· Oxidizing GHS05· Corrosive

Hazard Statements

H271 May cause fire or explosion; strong Oxidizer

H290 May be corrosive to metals

H314 Causes severe skin burns and eye damage

H318 Causes serious eye damage

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P220 Keep away from clothing and other combustible materials.

P234 Keep only in original packaging.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

Which trade and regulatory codes apply to Sodium aluminate?

UN Number 3260

ADR Class 8

Packing Group III

Storage Class 8A - Combustible corrosive hazardous materials

WGK (Germany) 1