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乙酸 产地:德国

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品牌: 乙酸
型号: 200kg/桶
规格: 99.0%
单价: 2700.00元/吨
起订:
供货总量: 40 吨
发货期限: 自买家付款之日起 3 天内发货
所在地: 天津
有效期至: 长期有效
最后更新: 2012-12-19 22:56
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乙酸 产地:德国

乙酸    规格:99.0%   产地:德国/比利时    包装:200kg/桶    价格:2700元/吨
冰乙酸
Acetate 
Cas号: 64-19-7  
分子式 C2H4O2;CH3COOH
分子量 60.05
别名冰醋酸,乙酸
Acetic acid
Acetic acid glacial
Glacial acetic acid
性状无色透明液体。有刺激性气味。有腐蚀性,对皮肤有刺激痛,发水泡。其蒸气有毒,并易着火。纯的无水乙酸(冰醋酸)是无色的吸湿性液体,凝固点为16.7℃(62℉) ,凝固后为无色晶体。能与水、乙醇、醚、四氯化碳和油混和,难溶于二硫化碳。凝固时体积微缩。
密度:1.048 
熔点: 16-16.5℃
沸点: 117-118℃
折光率n20/D: 1.37-1.373 
闪点:40℃
备注: 以上描述,仅作参考,并不表示您收到的产品,与此项描述完全相符,产品的出厂标准,请参见质量标准。
质量标准  
 GB/T 676-90
项目Item                                        优级纯     分析纯     化学纯
                                                 (GR)      (AR)        (CP)
含量(CH3COOH)Assay,%                            ≥99.8      99.5       99.0
结晶点Freezing point,℃                         ≥16.0      15.1       14.8
蒸发残渣Evaporation residue,%                   ≤0.001     0.002      0.005
与水混合试验Miscibility with water                合格      合格       合格
氯化物(Cl)Chloride,%                            ≤0.0001   0.0001     0.0004
硫酸盐(SO4)Sulfate,%                            ≤0.0001    0.002      0.0005
铁(Fe)Iron,%                                   ≤0.00002   0.0001     0.0002
(Cu)Copper,%                                 ≤0.00001   0.00005    0.0001
(Zn)Zinc,%                                    ≤0.00001     --         --
(Pb)Lead,%                                    ≤0.00001   0.00005    0.0001
乙酸酐[CH3CO)2O]Acetic anhydride              ≤0.01      0.02       0.02
还原重铬酸盐物质(以O计)Dichromate-reducing
substances,%                                    0.004     0.008      0.01
ACS级
项目名称Item                                    ACS Grade
含量Assay(as CH3COOH)                            ≥99.7%
色度Color(APHA)                                  ≤10
稀释试验Dilution test                            Passes test
蒸发残渣Residue after evaporation                ≤0.001%
乙酸酐[(CH3CO)2O]Acetic anhydride                ≤0.01%
氯化物(Cl)Chloride(Cl)                           ≤0.0001%
硫酸盐(SO4)Sulfate                               ≤0.0001%
重金属(以Pb计)Heavy metals(as Pb)                ≤0.00005%
(Fe)Iron(Fe)                                   ≤0.00002%
还原重铬酸盐Substances reducing dichromate       Passes test
还原高锰酸盐Substances reducing permanganate     Passes test
可滴定碱Titrable base                            ≤0.0004meq/g
品级Grade                                       电子级  
                                          (semiconductor grade)
                                                Maximum
Assay(CH3COOH)                                  99.7%
Color                                           10 APHA
Cloride(Cl)                                     500ppb
Sulfate(SO4)                                    500ppb
Phosphate                                       500ppb
Residue After Evaporation                       500ppb
Acetic Anhydride                                0.1%
Maximum limit of impurities
Al                                              3ppb
As                                              1ppb
Sb                                              1ppb
Ba                                              1ppb
Be                                              1ppb
Bi                                              1ppb
B                                               3ppb
Cd                                              1ppb
Ca                                              3ppb
Cr                                              1ppb
Co                                              1ppb
Cu                                              1ppb
Ga                                              1ppb
Ge                                              1ppb
Au                                              1ppb
In                                              1ppb
Fe                                              1ppb
Pb                                              1ppb
Li                                              1ppb
Mg                                              1ppb
Mn                                              1ppb
Mo                                              1ppb
Ni                                              1ppb
Nb                                              1ppb
K                                               3ppb
Pt                                              1ppb
Ag                                              1ppb
Na                                              3ppb
Sr                                              1ppb
Sn                                              1ppb
Ta                                              1ppb
Ti                                              1ppb
Zn                                              1ppb
Zr                                              1ppb
Particulate Count
0.3micron                                     200pcs/ml
0.5micron                                     100pcs/ml
品级Grade                                       药用级  
                                          (Ph. Eur., BP, USP, FCC, 99.8-100.5%)
外观Appearance                                  Clear colorless liquid
纯度Purity(titration)                           99.8-100.5 %
凝固点Congealing temperature                    ≤15.6 ° c
非挥发残留Nonvolatile residue                   ≤ 0.005%
还原性物质Reducing substances                   pass test
氯化物Chloride                                  pass test
硫酸盐Sulfate                                   pass test
Iron                                          ≤5 ppm
重金属Heavy metals                              ≤5 ppm
易氧化物质Readily oxidizable substances         pass test
项目名称Item                                    for LC-MS
含量Assay(as CH3COOH)                            ≥99.7%
色度Color(APHA)                                  ≤10
蒸发残渣Evaporation residue                      ≤0.0005%
乙醛Acetaldehyde                                 ≤0.0002%
乙酸酐Acetic anhydride (GC)                      ≤0.01%
氯离子Chloride (Cl-)                             ≤0.5 mg/kg
磷酸根Phosphate (PO43-)                          ≤0.5 mg/kg
硫酸根Sulfate (SO42-)                            ≤0.5 mg/kg
Ag                                               0.01 mg/kg
Al                                               0.05 mg/kg
As                                               0.01 mg/kg
Ba                                               0.01 mg/kg
Be                                               0.01 mg/kg
Bi                                               0.1 mg/kg
Ca                                               0.2 mg/kg
Cd                                               0.02 mg/kg
Co                                               0.01 mg/kg
Cr                                               0.05 mg/kg
Cu                                               0.01 mg/kg
Fe                                               0.2 mg/kg
Ge                                               0.05 mg/kg
K                                                0.1 mg/kg
Li                                               0.01 mg/kg
Mg                                               0.1 mg/kg
Mn                                               0.01 mg/kg
Mo                                               0.02 mg/kg
Na                                               0.5 mg/kg
Ni                                               0.05 mg/kg
Pb                                               0.02 mg/kg
Sr                                               0.01 mg/kg
Ti                                               0.01 mg/kg
Tl                                               0.05 mg/kg
V                                                0.01 mg/kg
Zn                                               0.05 mg/kg
Zr                                               0.1 mg/kg
项目名称Item                                    for HPLC, ≥99.9%
外观Appearance                                   Colorless Liquid
红外光谱Infrared spectrum                        Conforms to Structure
纯度Purity(GC)                                   ≥99.9 %
紫外吸光度UV absorption                          UV absorption
Absorbance:260 nm                                0.1 A.U.
Absorbance:270 nm                                0.02 A.U.
Absorbance:280 nm                                0.02 A.U.
项目名称Item                                    用于荧光分析,99.7%
外观Appearance                                   Colorless Liquid
红外光谱Infrared spectrum                        Conforms to Structure
纯度Purity(GC)                                   ≥99.70 %
乙酸酐Acetic Anhydride                           < 0.01 %
蒸发残渣Residue on Evaporation                   < 0.001 %
色度Color Test                                   < 10 APHA
氯离子Chloride (CL)                              < 1 ppm
硫酸盐Sulfate                                    < 1 ppm
Iron (Fe)                                      < 0.2 ppm
重金属Heavy metals (as Pb)                       < 0.5 ppm
重铬酸还原物质Substances reducing Dichromate     Pass
MnO4
贮存密封,在16℃以上的暖处保存,以防凝固而致使容器破裂
用途常用有机酸。分析、溶剂、有机合成,制备缓冲液等。
联合国编号 2789
Risk: R10- R35- 
Safety : S23- S26- S45- 
Hazard : C -

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