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Product Name

 POTASSIUM NITRATE AR

Article No

 P0168405000

CAS No

 7757-79-1

Molecular Formula

 KNO3

Molecular Weight

 101.11

Specifications

Appearance:

 White crystalline powder

Chloride (Cl):

 Max 0.001%

Sulphate (SO4):

 Max 0.003%

Heavy metal (as Pb):

 Max 0.0005%

Sodium (Na):

 Max 0.02%

Loss on drying (at 105°C) :

 Max 0.5%

Arsenic (As):

 Max 0.0003%

Iron (Fe):

 Max 0.0003%

Identity:

 Passes test

Calcium (Ca):

 Max 0.001%

Ammonium (NH4):

 Max 0.001%

Appearance of solution:

 Passes test

Acidity or alkalinity:

 Passes test

Phosphate (PO4):

 Max 0.0005%

Reducing substance:

 Passes test

Assay (as KNO3):

 99 - 100.5%

Iodate (IO3):

 Max 0.0005%

Nitrite (NO2):

 Max 0.001%

pH (5% solution in water; 20°C):

 4.5 - 8.5

Chlorate and perchlorate (as Cl):

 Passes test