Nitrates
Potassium nitrate (12648)
extra pure, meets analytical specification of Ph. Eur., BP, USP, FCC, E 252, assay 99.0 - 100.5%
Overview
Act as a desensitizing agent in toothpaste
Specifications
General Information
- CAS Number
- 7757-79-1
- Molar Mass
- 101 g/mol
- Linear Formula
- KNO3
- Application
- Oral Care
- Grade
- Extra pure
Physical Properties
- Color
- Colorless
- Density
- 2.11 g/cm3 (20 °C)
- Vapor Pressure
- No data available hectopascal
- Physical Form
- Crystalline powder
- Melting Point/Range
- 335 °C (1,013 hPa)
- pH
- 5.5 to 7.5 at 50 g/l (20 °C)
- Odor
- Odorless
- Boiling Point/Range
- Decomposition
Safety Information
- Self Ignition
- Not auto-flammable
- Oxidizing
- The substance or mixture is classified as oxidizing with the category 3.
- Flammability
- The product is not flammable.
- Incompatible Materials
- Cyanides, Thiocyanates, Acids, Heavy metals, Reducing agents, Combustible material
- Chemical Stability
- Stable under normal conditions.
International Transportation
- Packing Group
- III
- UN Number
- 1486
- Chemical Class
- 5.1
- Harmonized System Code
- 2834210000
General Information
- CAS Number
- 7757-79-1
- Molar Mass
- 101 g/mol
- Linear Formula
- KNO3
- Application
- Oral Care
- Grade
- Extra pure
Physical Properties
- Color
- Colorless
- Density
- 2.11 g/cm3 (20 °C)
- Vapor Pressure
- No data available hectopascal
- Physical Form
- Crystalline powder
- Melting Point/Range
- 335 °C (1,013 hPa)
- pH
- 5.5 to 7.5 at 50 g/l (20 °C)
- Odor
- Odorless
- Boiling Point/Range
- Decomposition
Safety Information
- Self Ignition
- Not auto-flammable
- Oxidizing
- The substance or mixture is classified as oxidizing with the category 3.
- Flammability
- The product is not flammable.
- Incompatible Materials
- Cyanides, Thiocyanates, Acids, Heavy metals, Reducing agents, Combustible material
- Chemical Stability
- Stable under normal conditions.
International Transportation
- Packing Group
- III
- UN Number
- 1486
- Chemical Class
- 5.1
- Harmonized System Code
- 2834210000
- CAS Number : 7757-79-1
- Molar Mass : 101 g/mol
- Linear Formula : KNO3
- Application : Oral Care
- Grade : Extra pure
- Color : Colorless
- Density : 2.11 g/cm3 (20 °C)
- Vapor Pressure : No data available hectopascal
- Physical Form : Crystalline powder
- Melting Point/Range : 335 °C (1,013 hPa)
- pH : 5.5 to 7.5 at 50 g/l (20 °C)
- Odor : Odorless
- Boiling Point/Range : Decomposition
- Self Ignition : Not auto-flammable
- Oxidizing : The substance or mixture is classified as oxidizing with the category 3.
- Flammability : The product is not flammable.
- Incompatible Materials : Cyanides, Thiocyanates, Acids, Heavy metals, Reducing agents, Combustible material
- Chemical Stability : Stable under normal conditions.
- Packing Group : III
- UN Number : 1486
- Chemical Class : 5.1
- Harmonized System Code : 2834210000
Property
Value
assay
99.0 - 100.5 %
assay (calc. to the dried substance)
99.0 - 100.5 %
loss on drying (105°C)
Max. 0.5 %
pH (5 %, 20°C)
5 - 8
ammonium (NH4)
Max. 50 ppm
arsenic (As)
Max. 1 ppm
calcium (Ca)
Max. 50 ppm
copper (Cu)
Max. 10 ppm
iron (Fe)
Max. 10 ppm
mercury (Hg)
Max. 1 ppm
sodium (Na)
Max. 0.1 %
lead (Pb)
Max. 2 ppm
zinc (Zn)
Max. 10 ppm
heavy metals (as Pb)
Max. 10 ppm
chloride (Cl)
Max. 10 ppm
nitrite (NO2)
Max. 5 ppm
sulfate (SO4)
Max. 100 ppm
chlorate (ClO3)
complying
appearance of the solution
complying
acidity or alkalinity
complying
reducible impurities
complying
residual solvents
complying
identity on K
complying
identity on NO3
complying
