性状：无臭。味咸微苦。在潮湿空气中略吸湿。本品1g溶于1.1ml水、0.6ml沸水、125ml乙醇、52ml沸乙醇、3470ml无水乙醇、300ml无 水甲醇。当溶解于水其溶液温度降低，溶液呈中性。有氧化性，与有机物摩擦或撞击能引起燃烧或爆炸。有毒，半数致死量(兔，经口)1.955g阴离子 /kg。

备注: 以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见质量标准。

质量标准：

GB/T 636-92
项目Item                                            分析纯（AR)          化学纯(CP)
含量(NaNO₃)Assay,%                               ≥99.0                  98.5
pH(50g/L溶液，25℃)pH of water  solution        ≤5.5-7.5              5.5-7.5
澄清度试验Clarty                                   合格                   合格
水不溶物Insiluble matter,%                     ≤0.004                  0.01
总氯量(以Cl计)Total Chlorine,%             ≤0.0015                  0.005
碘酸盐(IO₃)Idoate,%                             ≤0.0005                 0.002
硫酸盐(SO₄)Sulfate ,%                          ≤0.003                   0.01
亚硝酸盐(NO₂)Nitrite,%                        ≤0.0005                  0.001
磷酸盐(PO₄)Phosphate,%                       ≤0.0005                  0.001
铵(NH₄)Ammonium,%                            ≤0.002                  0.005
钾(K)Pitassium,%                                 ≤0.005                   0.01
钙(Ca)Calcium,%                                 ≤0.005                   0.01
铁(Fe)Iron,%                                      ≤0.0001                 0.0005
重金属(以Pb计)Heavy metals,%             ≤0.0005                 0.001

ACS级
项目名称　                                                      ACS Grade
含量(NaNO₃)Assay                                             ≥99.0%
pH(5%溶液,25.0℃)pH of a 5% solution at 25.0℃      5.5-8.3
水不溶物Insoluble matter                                   ≤0.005%
氯化物(Cl)Chloride                                           ≤0.001%
碘酸盐(IO₃)Iodidi                                             ≤5ppm
亚硝酸盐(NO₂Nitrate                                         ≤0.001%
磷酸盐(PO₄)Phosphate                                       ≤5ppm
硫酸盐(SO₄)Sulfate                                          ≤0.003%
钙(Ca)Calcium                                                 ≤0.005%
镁(Mg).Magnesium                                           ≤0.002%
重金属(以Pb计)Heavy metals                            ≤5ppm
铁(Fe)Iron                                                     ≤3ppm

99.99% metals basis:
外观Appearance                                白色结晶
纯度Purity                                       ≥99.99% Based On Trace Metals Analysis
ICP:                                                Confirms Sodium Component  
痕量金属杂质Trace Metal Analysis        ≤100.0 ppm by ICP Atomic emission

贮存：密封干燥保存。

用途：强氧化剂，有机合成、土壤、化肥分析。制造硝酸、染料、药物、火药等。

联合国编号 1498

Risk： R22- R36/37/38- R8-

Safety : S17- S26- S37/39-

Hazard : O - Xn -