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Aluminium Sulfate CAS#7784-31-8

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Chemical Name：Aluminium Sulfate

CAS No.:7784-31-8

Molecular Formula：Al2H36O30S3

Sample: Available

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Product Details

Aluminium Sulfate CAS#7784-31-8

Aluminum sulfate is highly soluble in water but insoluble in ethanol. It cannot dissolve in pure sulfuric acid and will slowly hydrolyze in aqueous solutions. It begins to decompose into aluminium oxide, sulfur trioxide, sulfur dioxide and water vapor when heated to 770℃.

Aluminium Sulfate CAS#7784-31-8

Aluminium sulfate octadecahydrate Chemical Properties

Melting point	86 °C
density	1,69 g/cm3
bulk density	820kg/m3
storage temp.	Sealed in dry,Room Temperature
solubility	364g/l
form	Powder/Solid
color	White
Specific Gravity	1.69
PH Range	3 - 4
PH	2.5-4.0 (20g/l, H2O, 20℃)
Water Solubility	Soluble
Sensitive	moisture sensitive
InChI	InChI=1S/2Al.3H2O4S.18H2O/c;;31-5(2,3)4;;;;;;;;;;;;;;;;;;/h;;3(H2,1,2,3,4);181H2/q2+3;;;;;;;;;;;;;;;;;;;;;/p-6
InChIKey	AMVQGJHFDJVOOB-UHFFFAOYSA-H
SMILES	S([O-])([O-])(=O)=O.S([O-])([O-])(=O)=O.S([O-])([O-])(=O)=O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[Al+3]
CAS DataBase Reference	7784-31-8(CAS DataBase Reference)
EPA Substance Registry System	Sulfuric acid, aluminum salt (3:2), octadecahydrate (7784-31-8)

Safety Information

Hazard Codes	N-Xn,Xi,N,Xn
Risk Statements	51/53-41-36/37/38-22
Safety Statements	61-37/39-29-26-39
RIDADR	UN3260 - class 8 - PG 3 - RQ - Corrosive solid, acidic, inorganic, n.o.s., HI: all
WGK Germany	1
RTECS	WS5697000
HS Code	2833 22 00
Toxicity	LD50 orally in Rabbit: > 5000 mg/kg

Product Usage

The compound is used heavily in the paper industry. In its acidic solution form, which contains a slight excess of H2SO4, it is used for pH control of pulp slurries, treatment of process waters, setting of dyes and also for precipitating dissolved resin for setting the size on the fibers. In slight basic form (containing a slight excess of Al2O3), it is used for treatment of drinking and waste waters (e.g., for reducing phosphorus content). Other major applications include dyeing, tanning, catalysts, modification of concrete, and in the manufacture of various chemicals and pharmaceutical products.

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