Aluminum sulfate octadecahydrate 7784-31-8


Product Deail


Aluminum Sulfate Octadecahydrate

Description】White crystal or crystalline powder, 86.5℃ lost part of water of crystal, 250℃ lost all water of crystal, white powder. About 600℃ decomposition to form trialumina. Soluble in water, insoluble in alcohol, aqueous solution is acidic.

Test items

AR

CP

Other

Assay[Al2(SO4)3•18H2O] /%

≥ 99.0

≥ 99.0

Custom

pH(50g/L,25℃)

≥ 2.5

≥ 2.5

Clarify degrees test /#

≤ 4

≤ 6

Water insoluble /%

≤ 0.02

≤ 0.05

Chloride(Cl) /%

≤ 0.002

≤ 0.05

Ammonium(NH4) /%

≤ 0.005

≤ 0.02

Sodium(Na) /%

≤ 0.02

≤ 0.1

Magnesium(Mg) /%

≤ 0.002

≤ 0.004

Potassium(K) /%

≤ 0.005

≤ 0.01

Calcium(Ca) /%

≤ 0.01

≤ 0.02

Iron(Fe) /%

≤ 0.003

≤ 0.01

Heavy metals (as Pb) /%

≤ 0.001

≤ 0.002

Use】As an analytical reagent; Water treatment agent; Aluminate raw materials; Mordants; Waterproofing agent; Oil decolorizing agent and used in leather, paper making, pharmaceutical industry.