SPECIFICATIONS

POTASSIUM NITRATE ACS

Synonyms:				Saltpeter; Niter; Nitricacid, potassium salt; Vicknite

CAS No:				7757-79-1

Chemical Formula:			KNO3

Formula Weight:			101.10

Description:				Colorless white crystalline powder

Assay:					99.0 % minimum

pH of a 5% solution		4.5 - 8.5 @ 25 deg. C

Insoluble matter			0.005 % maximum
Chloride (Cl)			0.002 % maximum
Iodate (IO3)				5 ppm maximum
Nitrite (NO2)				0.001 % maximum
Phosphate (PO4)			5 ppm maximum
Sulfate (SO4)				0.003 % maximum
Heavy Metals (as Pb)		5 ppm maximum
Iron (Fe)				3 ppm maximum
Calcium (Ca)				0.005 % maximum
Magnesium (Mg)			0.002 % maximum
Sodium (Na)				0.005 % maximum

Effective: 12/29/08