• 乙酸铵 [631-61-8]

  • 英文名:Ammonium acetate
  • 别名:乙酸铵盐 醋酸铵 无水乙酸铵
  • CAS号:631-61-8 分子式:C2H7NO2 分子量:77.08
P345-500g 乙酸铵 [631-61-8] 98% 500g 46.00 促销价:28.98
P347-25g 乙酸铵 [631-61-8] 98% 2.5kg 200.00 促销价:126.00
P341-500g 乙酸铵 [631-61-8] 99.9% 500g 246.00 促销价:154.98
P342-100g 乙酸铵 [631-61-8] 99.9% 100g 93.00 促销价:58.59
P346-500g 乙酸铵 [631-61-8] 99.99% 500g 333.00 促销价:209.79
P341-100g 乙酸铵 [631-61-8] 99.99% 100g 130.00 促销价:81.90
P342-25g 乙酸铵 [631-61-8] 99.99% 25g 91.00 促销价:63.70
P342-250g 乙酸铵 [631-61-8] HPLC 250g 342.00 促销价:249.66
P349-100g 乙酸铵 [631-61-8] HPLC 50g 100.00 促销价:73.00
P344-5kg 乙酸铵 [631-61-8] HPLC 5kg 2228.00 促销价:1626.44
P343-1kg 乙酸铵 [631-61-8] HPLC 1kg 857.00 促销价:625.61
P348-500g 乙酸铵 [631-61-8] ≥99% 500g 85.00 促销价:62.05
P349-2.5kg 乙酸铵 [631-61-8] ≥99% 2.5kg 228.00 促销价:166.44
P343-500g 乙酸铵 [631-61-8] 质谱级 500g 581.00 促销价:371.84
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P345-500g 乙酸铵 [631-61-8] 98% 500g 46.00 28.98 登录可见
P345-500g 乙酸铵 [631-61-8] 98% 500g 46.00 促销价:28.98
P347-25g 乙酸铵 [631-61-8] 98% 2.5kg 200.00 126.00 登录可见
P347-25g 乙酸铵 [631-61-8] 98% 2.5kg 200.00 促销价:126.00
P341-500g 乙酸铵 [631-61-8] 99.9% 500g 246.00 154.98 登录可见
P341-500g 乙酸铵 [631-61-8] 99.9% 500g 246.00 促销价:154.98
P342-100g 乙酸铵 [631-61-8] 99.9% 100g 93.00 58.59 登录可见
P342-100g 乙酸铵 [631-61-8] 99.9% 100g 93.00 促销价:58.59
P346-500g 乙酸铵 [631-61-8] 99.99% 500g 333.00 209.79 登录可见
P346-500g 乙酸铵 [631-61-8] 99.99% 500g 333.00 促销价:209.79
P341-100g 乙酸铵 [631-61-8] 99.99% 100g 130.00 81.90 登录可见
P341-100g 乙酸铵 [631-61-8] 99.99% 100g 130.00 促销价:81.90
P342-25g 乙酸铵 [631-61-8] 99.99% 25g 91.00 63.70 登录可见
P342-25g 乙酸铵 [631-61-8] 99.99% 25g 91.00 促销价:63.70
P342-250g 乙酸铵 [631-61-8] HPLC 250g 342.00 249.66 登录可见
P342-250g 乙酸铵 [631-61-8] HPLC 250g 342.00 促销价:249.66
P349-100g 乙酸铵 [631-61-8] HPLC 50g 100.00 73.00 登录可见
P349-100g 乙酸铵 [631-61-8] HPLC 50g 100.00 促销价:73.00
P344-5kg 乙酸铵 [631-61-8] HPLC 5kg 2228.00 1626.44 登录可见
P344-5kg 乙酸铵 [631-61-8] HPLC 5kg 2228.00 促销价:1626.44
P343-1kg 乙酸铵 [631-61-8] HPLC 1kg 857.00 625.61 登录可见
P343-1kg 乙酸铵 [631-61-8] HPLC 1kg 857.00 促销价:625.61
P348-500g 乙酸铵 [631-61-8] ≥99% 500g 85.00 62.05 登录可见
P348-500g 乙酸铵 [631-61-8] ≥99% 500g 85.00 促销价:62.05
P349-2.5kg 乙酸铵 [631-61-8] ≥99% 2.5kg 228.00 166.44 登录可见
P349-2.5kg 乙酸铵 [631-61-8] ≥99% 2.5kg 228.00 促销价:166.44
P343-500g 乙酸铵 [631-61-8] 质谱级 500g 581.00 371.84 登录可见
P343-500g 乙酸铵 [631-61-8] 质谱级 500g 581.00 促销价:371.84
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

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)

质量标准

  

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

  

危险性质

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

  

用途及存储

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

  密封干燥保存。