Packaging: Inner plastic and outer woven, net weight 20Kg, 25Kg, 50Kg per bag, stored in a ventilated and dry place
英文名称：Potassium nitrate
CAS：7757-79-1
Molecular formula: KNO3
Molecular weight: 101.10
【 Appearance 】 Colorless transparent crystal or white crystal, with deliquescence. Relative density 2.11, melting point 330 ℃. Easy to dissolve in water, soluble in ethanol and glycerol, insoluble in anhydrous ethanol. Has strong oxidizing properties.
Application areas: High purity potassium nitrate is mainly used as a chemical strengthening reagent for glass windows (mobile phone panel glass, electric vehicle display screen glass, home appliance display touch glass), for high-end thermal conductive molten salts, and for metal heat treatment salts and other fields.
Execution standard: GB/T636-2011
| project | Guaranteed reagent | Analytical Reagent | Chemically Pure | Factory standard |
| 硝 酸 钾 ( K N O 3 )ω1 % | ≥99 | ≥99 | ≥98.5 | ≥99.9(干基) |
| ph value(50g/l,25℃) | 5.0——8.0 | 5.0——8.0 | 5.0——8.0 | 6-7 |
| Clarity test/No | ≤2 | ≤3 | ≤5 | ≤3 |
| Water insoluble matter ω 1% | ≤0.002 | ≤0.004 | ≤0.006 | ≤0.004 |
| 总氯量(以Cl计)ω/% | ≤0.0015 | ≤0.003 | ≤0.005 | <0.003 |
| 碘 酸 盐 (IO₃) ω/% | ≤0.0005 | ≤0.0005 | ≤0.002 | <0.002 |
| 硫 酸 盐 (SO₄) ω/% | ≤0.002 | ≤0.003 | ≤0.01 | <0.003 |
| 亚硝酸盐(NO₂)ω/% | ≤0.001 | ≤0.001 | ≤0.002 | <0.002 |
| 铵 (NH₄) ω/% | ≤0.001 | ≤0.001 | ≤0.005 | <0.005 |
| 磷 酸 盐 (PO₄) w% ω/% | ≤0.0005 | ≤0.0005 | ≤0.001 | <0.001 |
| 钠 ( N a ) ω/% | ≤0.02 | ≤0.02 | ≤0.05 | <0.02 |
| 镁 ( M g ) ω/% | ≤0.001 | ≤0.002 | ≤0.004 | <0.001 |
| 钙 ( G a ) ω/% | ≤0.001 | ≤0.004 | ≤0.005 | <0.001 |
| 铁 ( F e ) ω/% | ≤0.0001 | ≤0.0002 | ≤0.0005 | <0.0005 |
| 重金属(以Pb计)ω/% | ≤0.0003 | ≤0.0005 | ≤0.001 | <0.001 |
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