Technical indexes:
Potassium nitrate
Molecular formula:KNO₃
Molecular weight:101.11
Properties: Potassium nitrate :colorless transparent rhombic crystal or powder and granule，Relative Density :2.1109， Melting point 333℃，heated in 400℃it can become Potassium nitrite ，Solubility （0℃时，13.3g/100gH₂O;30℃，45.8 g/100gH₂O；100℃ ，246.0 g/100 gH₂O）.
Uses: for fused salt
Executive standard:Q/YLB-01， reference standard:GB1918-86

Sodium nitrate
Molecular formula:NaNO₃
Molecular weight:84.99
Properties: Sodium nitrate:colorless transparent or white diamond crystal with slight yellow， Density :2.257（20℃）
Uses: for fused salt
Executive standard:Q/YLB-02， reference standard:GB/T4553-93