85 乙酸铵 AR 500g 30
86 乙酸铵 CP 500g 27
87 乙酸铵 GCS 25g 106
88 乙酸铵 GR 500g 72
89 乙酸铵 HPLC 100g 102
无色或白色结晶，极易潮解，易溶于水和醇.熔点 110-112 °C (dec.)(lit.) ,密度 1.07 g/mL at 20 °C , 闪点 136 °C,储存条件 2-8°C,溶解度 H2O: 1 M at 20 °C, clear, colorless,水溶解性 1480 g/L (20 oC)
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