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Features:
1) Potassium nitrate
2) Molecular formula: KNO3
3) Molecular Weight: 101.11
4) Physicochemical properties: KNO3 is the rhombic system crystal powder or
grain
5) Specific density: 2.1109
6) Melting point: 333°C. While heated up to as high as 400°C, it will
decompose and release oxygen and turn into nitrite potassium, then with
the heating going on, it will eventually decompose into potassium oxide and
nitrogen oxide. Dissolved in water (20°C, 13.3g/100g H2O; 30°C,
45.8g/100H2O; 100°C, 246.0g/100gH2O); soluble in liquid ammonia and
glycerin, insoluble in alcohol
7) Applications and usages: KNO3 is used raw material to make black powder,
front line, blaze and some other things. In pottery and porcelain industry it
can be used in making color ceramic glaze; it also can be used in making
glass clarifier, the auto dynamo glass ,optical glass and kinescope glass. Also
it is used in making medicine such as penicillin sylvine and rifampicin. It can be
used as mill run medicament. Edible KNO3 can be used as chromogen and
preservatives in meat food
8) Item unit optical G. Ind.G. Agri.G. Ceramic G. crystal. G.
a) Assay(KNO3) %: ≥99.9 99.8 98 96 99.2
b) Moisture %: ≥0.10 0.10 0.10 0.10 0.6
c) Chlorides %: ≥0.01 0.03 0.03 0.08 0.015
d) Water-insolubles %: ≤0.01 0.01 0.01 0.15
e) Sulphates %: ≥0.005 0.01 - 0.005
f) Iron %: ≥0.002 0.01 - 0.003 0.002
g) Potassium oxide %: ≥ - 46.0 44
h) Nitrogen %: ≥ - 13.5 13.5
i) Sodium %: ≥ - 0.007 0.2
j) Sodium oxide %: ≥ - 0.01