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Product Name

 ALUMINIUM POTASSIUM SULPHATE AR (DODECAHYDARATE)

Article No

 A0019605000

CAS No

 7784-24-9

Molecular Formula

 AlK(SO4)2.12H2O

Molecular Weight

 474.38

Specifications

Appearance:

 White crystalline powder

Insoluble matter:

 Max 0.005%

Chloride (Cl):

 Max 0.0005%

Heavy metal (as Pb):

 Max 0.001%

Sodium (Na):

 Max 0.02%

Arsenic (As):

 Max 0.0002%

Iron (Fe):

 Max 0.0005%

Copper (Cu):

 Max 0.0005%

pH (10% solution in water):

 3.0 -.3.5

Ammonium (NH4):

 Max 0.005%

Identifications:

 To comply USP, BP test

Appearance of solution:

 Passes test

Related Substances:

 To comply USP, BP test

Assay (complexometric):

 99.0-100.5%

Loss on dryig (at 400°C):

 43 - 46%