AR ,CP,GR ,ACS,HPLC

项目Item                                       优级纯       分析纯      化学纯
                                                (GR)         (AR)        (CP)
含量(CH3COONH4)Assay,%                        ≥99.0         98.0        97.0
水溶液反应Solution reaction                     合格         合格        合格
澄清度试验Clarity                               合格         合格        合格
水不溶物Insoluble matter in water,%           ≤0.002        0.005       0.01
灼烧残渣（以硫酸盐计）Ignition residue,%      ≤0.005        0.005       0.01
水分(H2O)Water,%                              ≤2.0            --         --
氯化物(Cl)Chloride,%                          ≤0.0005       0.0005      0.001
硫酸盐(SO4)Sulfate,%                          ≤0.001        0.002       0.005
硝酸盐(NO3)Nitrate,%                          ≤0.001        0.001        --
磷酸盐(PO4)Phosphate,%                        ≤0.0003       0.0005       --
镁(Mg)Magnesium,%                             ≤0.0002       0.0004      0.001
钙(Ca)Calcium,%                               ≤0.0005       0.001       0.002
铁(Fe)Iron,%                                  ≤0.0002       0.0005      0.001
重金属(以Pb计)Heavy metals,%                  ≤0.0002       0.0005      0.001
还原高锰酸钾物质Potassium
permanganate-reducing substances              ≤0.005        0.01        0.01

项目名称Item                                   ACS Grade
含量(CH3COONH4)Assay                           ≥97.0%
pH(5%溶液，25.0℃)pH                           6.7-7.3
水不溶物Insoluble matter                       ≤0.005%
蒸发残渣Residue after evaporation              ≤0.01%
氯化物(Cl)Chloride(Cl)                         ≤5ppm
硝酸盐(NO3)Nitrate                             ≤0.001%
硫酸盐(SO4)Sulfate                             ≤0.001%
重金属(以Pb计)Heavy metals(as Pb)              ≤5ppm
铁(Fe)Iron(Fe)                                 ≤5ppm

品级Grade                                     色谱纯  
                                            (grade for HPLC)
含量assay                                      ≥99.0% (NT)
pH                                             6.5-7.5 (20 °C, 10% in H2O) 
λ 10 % in H2O
UV absorption
  λ: 250 nm                                    ≤ 0.05
  λ: 260 nm                                    ≤ 0.04
  λ: 270 nm                                    ≤ 0.03
  λ: 280 nm                                    ≤0.02
  λ: 500 nm                                    ≤0.02
RP gradient test                               pass

品级Grade                                    分子生物学级, ~98%   
                                         (for molecular biology, ~98% )
外观Appearance                                白色至类白色粉末
氯Chloride                                    ≤ 5 ppm
铁Iron (Fe)                                   ≤5 ppm
重金属Heavy Metals(As Lead)                   ≤5 ppm
DNAse,                                        None Detected
核酸外切酶Exonuclease Detection               None Detected
RNAse Detection                               None Detected
蛋白酶Protease by FITC-Casein                 None Detected
纯度Purity                                    ≥98.0% (滴定)

99.99% metals basis:

外观Appearance                          White Moist Crystals
红外光谱Infrared spectrometry           Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
总痕量金属杂质total metallic impurities ≤100ppm by ICP Atomic emission
滴定纯度Purity (Titration by NAOH)      ≥98.0 %
灼烧残渣Residue on ignition (Ash)       0.01 %
不溶物Insoluble matter (C=10%; H2O)     ≤0.005 %
C=10%, H2O
氯Chloride (CL)                         ≤5 ppm
铁Iron (Fe)                             ≤5 ppm
重金属Heavy Metal (as Pb)               ≤5 ppm
硝酸根Nitrate (NO3)                     ≤0.001 %
pH (@ 25 °C, C=5%; H2O)              6.7- 7.3
硫酸根Sulfate                           ≤0.001 %

99.996% metals basis:

外观Appearance                          White Crystals
红外光谱Infrared spectrometry           Conforms to Structure
滴定纯度Purity (Titration by NAOH)      ≥98.0 %
纯度Purity                              ≥99.996% Based on Trace Metals Impurities
总痕量金属杂质total metallic impurities ≤40ppm by ICP Atomic emission

品级Grade                               用于质谱，LC-MS淋洗液添加剂  
                        (for mass spectroscopy ，eluent additive for LC-MS，≥99.0%)
外观Appearance                          White Crystals
红外光谱Infrared spectrometry           Conforms to Structure
纯度Purity                              ≥99.0% (calc. on dry substance, T)
不溶物insoluble matter,                 passes filter test
水分water                               ≤1%
灼烧残渣ign. residue                    ≤0.01% (as SO4)
pH                                      6.2-7.5 (25 °C, 1 M in H2O)
水溶性solubility H2O:                   soluble1 M at 20 °C, clear, colorless
氯chloride (Cl-):                       ≤5 ppm
硝酸根nitrate (NO3-):                   ≤10 ppm
硫酸根sulfate (SO42-):                  ≤10 ppm
cation traces Al:                       ≤1 ppm
  As:                                   ≤0.1 ppm
  Ba:                                   ≤1 ppm
  Bi:                                   ≤1 ppm
  Ca:                                   ≤5 ppm
  Cd:                                   ≤1 ppm
  Co:                                   ≤1 ppm
  Cr:                                   ≤1 ppm
  Cu:                                   ≤1 ppm
  Fe:                                   ≤1 ppm
  K:                                    ≤5 ppm
  Li:                                   ≤1 ppm
  Mg:                                   ≤1 ppm
  Mn:                                   ≤1 ppm
  Mo:                                   ≤1 ppm
  Na:                                   ≤5 ppm
  Ni:                                   ≤1 ppm
  Pb:                                   ≤1 ppm
  Sr:                                   ≤1 ppm
  Zn:                                   ≤1 ppm
λ                                 1 M in H2O
UV absorption λ: 260 nm Amax:          ≤0.015
  λ: 280 nm Amax:                      ≤0.010
suitability in accordance for LC-MS

类别 有毒物品
毒性分级 中毒
急性毒性 腹腔-大鼠 LD50: 632 毫克/公斤; 静脉-小鼠LD50: 386 毫克/公斤
可燃性危险特性 可燃;燃烧产生有毒氮氧化物和氨烟雾
储运特性 库房通风低温干燥
灭火剂 干粉、泡沫、砂土、二氧化碳, 雾状水

用途  用于肉类防腐、电镀、水处理、制药等
用途  用作分析试剂、色层分析试剂和缓冲剂