无色斜方晶系结晶或白色粉末。 易溶于水、溶于液氨和甘油。不溶于无水乙醇和乙醚。 熔点 334 °C(lit.) 沸点 100 °C750 mm Hg 密度 1.00 g/mL at 20 °C 闪点 400°C 溶解度 H2O: 1 M at 20 °C, clear, colorless

  

GB/T647-93
项 目ltem                                                   优级纯         分析纯      化学纯
                                                             (GR)           (AR)        (CP)
含量(KNO₃)Assay,%                          ≥99.0         ≥99.0      ≥98.5
pH(50g/L溶液，25℃),pH of water solution   5.0-8.0        5.0-8.0     5.0-8.0
澄清度试验Clarity                           合格            合格        合格
水不溶物lnsoluble matter in water,%        ≤0.002        ≤0.004     ≤0.006
碘酸盐(IO₃)lodate,%                        ≤0.0005       ≤0.0005    ≤0.002
总氯量(Cl)Total chlorine,%                 ≤0.0015       ≤0.003     ≤0.005
硫酸盐(SO₄),Sulfale,%                      ≤0.002        ≤0.003     ≤0.01
亚硝酸盐(NO₂)Nitrile                       ≤0.001        ≤0.001     ≤0.002
磷酸盐(PO₄)Phosphate,%                     ≤0.0005       ≤0.0005    ≤0.001
钠(Na)Sodium,%                             ≤0.02         ≤0.02      ≤0.05
镁(Mg)Magnesium,%                          ≤0.001        ≤0.002     ≤0.05
钙(Ca)Calcium,%                            ≤0.001        ≤0.004     ≤0.006
铁(Fe)lron,%                               ≤0.0001       ≤0.0002    ≤0.0005
重金属(以Pb计)Heavy metals,%               ≤0.0003       ≤0.0005    ≤0.001
铵(NH₄)Ammonium,%                          ≤0.001        ≤0.001     ≤0.005

ACS级
项目名称　                                 ACS Grade
含量(KNO₃)Assay                            ≥99.0%
pH(5%溶液,25.0℃)
pH of a 5% solution at 25.0℃               4.5-8.5
水不溶物Insoluble matter                    ≤0.005%
氯化物(Cl)Chloride                          ≤0.002%
碘酸盐(IO₃)Iodidi                           ≤5ppm
硝酸盐(NO₃)Nitrate                          ≤0.001%
磷酸盐(PO₄)Phosphate                        ≤5ppm
硫酸盐(SO₄)Sulfate                          ≤0.003%
重金属(以Pb计)Heavy metals                  ≤5ppm
铁(Fe)Iron                                  ≤3ppm
钙(Ca)Calcium                               ≤0.005%
镁(Mg)Magnesium                             ≤0.002%
钠(Na)Sodium                                ≤0.005%



品级Grade                               用于植物细胞培养  
                                 (for plant cell culture, ≥99.0%)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity                              ≥99.0% (T)  
水溶解试验solubility in water           20g/150ml in H2O,Clear ,Colorless
干燥损失Loss on Drying                  ≤1.00 %
植物细胞培养Plant Cell Culture Test     Pass



品级Grade                               用于细胞培养  
                                 (for cell culture, ≥99.0%)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity                              ≥99.0% (T)  
水溶解试验solubility in water           20g/150ml in H2O,Clear ,Colorless
干燥损失Loss on Drying                  ≤1.00 %
细胞培养Cell Culture Test               Pass



99.99% metals basis：


外观Appearance                          白色粉末或结晶
纯度Purity                              ≥99.99% Based On Trace Metals Analysis
ICP:                                    Confirms Potassium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤200ppm by ICP Atomic emission



99.997% metals basis：


外观Appearance                          白色粉末或结晶
纯度Purity                              ≥99.997% Based On Trace Metals Analysis
ICP:                                    Confirms Potassium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤50ppm by ICP Atomic emission

  

类别 氧化剂
毒性分级 中毒
危险品标志  O,Xi,Xn
危险类别码  8-36/38-36/37/38-22
安全说明  26-17-36-7-24/25
WGK Germany  1
RTECS号 TT3700000
HazardClass  5.1
PackingGroup  III
急性毒性 口服- 大鼠 LD50: 3750 毫克/ 公斤
爆炸物危险特性 与有机物、硫磷等混合可爆
可燃性危险特性 高热放出氧气; 遇有机物、还原剂、木炭、硫、磷等易燃物可燃; 燃烧产生有毒氮氧化物烟雾
储运特性 库房通风; 轻装轻卸; 与有机物、还原剂、木炭、硫磷易燃物分开存放
灭火剂 雾状水
职业标准 TWA 5 毫克/ 立方米); STEL 5 毫克/ 立方米

  

1. 用途  用作分析试剂和氧化剂，也用于钾盐的合成和配制炸药
2. 用途  在食品工业用作发色剂，护色剂，抗微生物剂，防腐剂，如用于腌肉，在午餐肉中起防腐作用
3.  

  密封干燥保存。