POTASSIUM NITRATE AR

Article No.	Grade	Purity	Cas no.	Molecular Formula	Molecular Weight	H.S. Code	Shelf Life
P0168405000	AR	99%	7757-79-1	KNO₃	101.11	2834.2100	60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

White crystalline

Odour

Odorless

pH value

5.5 - 8.0

Melting Point/ Freezing point [°C]

334 °C

Vapour density

Boiling point [°C]

400°C

Density [g/cm3]

2.109

Viscosity at 40°C [mm2/s]

36 gm/l00 ml water

Solubility in water [% weight]

36 gm/l00 ml water

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

Symbol: GHS03
Signal Word: Warning
UN No.: 1486
IMCO Class No.: 5.1
Packing Group: III
Hazardous Statement: H272
Precaution Statement: P220