Ammonium acetate

MDL：
--MFCD00013066

Molecular Formula：
C2H7NO2； CH3COONH4

Molecular Weight：
77.08

Alias：
醋酸铵 Acetic acid ammonium salt

Product order：

Name	Specifications	Packing	Price	Delivery
Ammonium acetate	分子生物学级	500g	RMB 217.8	Consulting service
Ammonium acetate	for HPLC, ≥99.0%	250g	RMB 418	Consulting service
Ammonium acetate	for HPLC, ≥99.0%	50g	RMB 107.8	现货
Ammonium acetate	ACS	500g	RMB 55	Consulting service
Ammonium acetate	GR	500g	RMB 63.8	Consulting service
Ammonium acetate	CP	500g	RMB 30.8	Consulting service
Ammonium acetate	AR	500g	RMB 52.8	现货

Character：
无色或白色结晶，极易潮解，易溶于水和醇。

Quality Standard：
   
   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)

Storage：
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