Aluminium sulfate hydrate Property

Melting point:

86.5℃

Density 

1.69 g/mL at 25 °C(lit.)

storage temp. 

Store at RT.

solubility 

It is slightly soluble in alcohol and dilute mineral acids.

form 

Crystalline

Specific Gravity

1.61

color 

White

PH

pH(50g/l,25℃) : >2.0

Merck 

14,366

Exposure limits

NIOSH: TWA 2 mg/m3

LogP

-1.031 (est)

CAS DataBase Reference

17927-65-0(CAS DataBase Reference)

Safety

Hazard Codes 

Xi

Risk Statements 

41-37/38

Safety Statements 

26-39

RIDADR 

UN3260 - class 8 - PG 3 - RQ - Corrosive solid, acidic, inorganic, n.o.s., HI: all

WGK Germany 

1

RTECS 

BD1700000

TSCA 

Yes

HS Code 

2833220000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H290May be corrosive to metals

H318Causes serious eye damage

Precautionary statements

P234Keep only in original container.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P390Absorb spillage to prevent material damage.

Aluminium sulfate hydrate Chemical Properties,Usage,Production

Chemical Properties

White crystals

Uses

Al2O3 + 3H2SO4 → Al2(SO4)3 + 3H2O. This reaction treats bauxite with sulfuric acid, resulting in aluminum sulfate plus water. Aluminum sulfate is also known as alum, which acts as an astringent to stop a minor flow of blood or dry up blisters (potassium aluminum sulfate is also an alum).

Uses

Aluminum sulfate hydrate is a chemical compound commonly used as a flocculating agent in the purification of drinking water and waste water treatment plants, and also in paper manufacturing. Used as coagulant in decolorization and COD removal of secondary yeast wastewater effluents. It is also plays a significant role in arsenic removal by coagulation process.

General Description

Aluminum sulfate hydrate is a hydrated aluminum salt. Aluminum sulfate is widely used in oil and fat processing, paper manufacturing and as a flocculant for water treatment. The kinetics of its dehydration by thermal decomposition has been investigated. It is one of the components of hematoxylin solution. Spherical particles of aluminum sulfate hydrate has been synthesized by prilling technique.