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Inorganic Salts

Potassium Nitrate Extra Pure

RA002154 CAS 7757-79-1 Extra Pure

Identity

Product code
RA002154
CAS number
7757-79-1
Grade
Extra Pure
Purity
99%
Molecular formula
KNO3
Molecular weight
101.10

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White crystalline —
Odour Odorless —
pH value 5.5 - 8.0 —
Melting point/ Freezing point [°C] 334 °C °C
Boiling point [°C] 400 °C °C
Vapour density 3 —
Density [g/cm3] 2.109 g/cm3 g/cm3

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit Method
Appearance White crystalline powder — —
Assay Min 99 % % Titration after Ion exchange
pH 4.5 - 8.5 — —
Chloride (Cl) Max 0.01 % % —
Sulphate (SO4) Max 0.01 % % —
Ammonium (NH4) Max 0.004 % % —
Arsenic (As) Max 0.0003 % % —
Lead (Pb) Max 0.005 % % —
Iron (Fe) Max 0.001 % % —

3 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.

Packaging

Pack size SKU
25 kg RA002154-PK-25KG
500 g RA002154-PK-500G
50 kg RA002154-PK-50KG
5 kg RA002154-PK-5KG