631-61-8

MDL：
--MFCD00013066

分子式：
C2H7NO2； CH3COONH4

分子量：
77.08

别名：
醋酸铵 Acetic acid ammonium salt

产品订购：

品名	规格	包装	单价	货期
乙酸铵	分子生物学级	500g	217.8元	咨询客服
乙酸铵	for HPLC, ≥99.0%	250g	418元	咨询客服
乙酸铵	for HPLC, ≥99.0%	50g	107.8元	现货
乙酸铵	ACS	500g	55元	咨询客服
乙酸铵	GR	500g	63.8元	咨询客服
乙酸铵	CP	500g	30.8元	咨询客服
乙酸铵	AR	500g	52.8元	现货

性状：
无色或白色结晶，极易潮解，易溶于水和醇。

质量标准：
   
   GB/T 1292-86
项目Item                                       优级纯       分析纯      化学纯
                                                (GR)         (AR)        (CP)
含量(CH3COONH4)Assay,%                        ≥98.0         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  
                                          (for molecular biology)
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)

贮存：
密封干燥阴凉处保存
用途  缓冲液配制，测定铅及铁，从其它硫酸盐分离硫酸铅