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Glyoxal

Cas:
107-22-2
Molecular Structure:
MDL:
MFCD00006957
Molecular Formula:
C2H2O2;OHCCHO
Molecular Weight:
58.04
Alias:
草酸醛 Ethanedial Oxalaldehyde Glyoxal solution
Product order:
Name Specifications Packing Price Delivery
Glyoxal 40% in H2O (8.8 M) 25ml(原裝) RMB 1353 現(xiàn)貨
Glyoxal 40% in H2O (8.8 M) 500ml RMB 31.9 Consulting service
Glyoxal 40% in H2O (8.8 M) 25L RMB 1064.8 Consulting service
Glyoxal 用于分子生物學(xué),40% in H2O (8.8 M) 25ml RMB 427.9 Consulting service
Glyoxal 用于分子生物學(xué),40% in H2O (8.8 M) 100ml RMB 1485 Consulting service
Character:
乙二醛是無色或略帶微黃色液體,放置易產(chǎn)生樹脂狀固體聚合物,遇熱聚合物又轉(zhuǎn)為單體。放冷后轉(zhuǎn)變?yōu)榘咨?,而其蒸氣呈綠色,蒸氣有毒,燃燒時(shí)生成紫色火焰,與空氣形成的混合物能引起爆炸。放置、遇水(反應(yīng)劇烈)或溶于含水溶劑時(shí)很快聚合,加熱時(shí),無水聚合物又能轉(zhuǎn)為單體。溶于水、醇和醚。半數(shù)致死量(大鼠,經(jīng)口)2020mg/kg。商品常制成40%溶液。其40%水溶液pH2.1-2.7。
密度:1.14
熔點(diǎn):15℃
沸點(diǎn):51℃
折光率:1.3826
Quality Standard:
含量(C2H2O2)Assay,%                 ≥ 40.0±0.5  
灼燒殘?jiān)?以硫酸鹽計(jì))Ignition residue,% ≤ 0.1        
酸度(以CH3COOH計(jì))Acidity,%             ≤ 0.15      
氮化合物(以N計(jì))Nitrogen compound,%     ≤ 0.1  
色度(APHA)                           ≤ 15  


品級(jí)Grade                               用于分子生物學(xué)  
                                      (for molecular biology)  
濃度concentration                     ~40% in H2O (~8.8 M)
DNA酶DNases,                          none detected
RNA酶RNases,                          none detected
磷酸酶phosphatases,                   none detected
蛋白酶proteases,                      none detected
氯chloride (Cl-):                     ≤100 ppm
硫酸根sulfate (SO42-):                ≤100 ppm
  Ca:                                 ≤5 ppm
  Cd:                                 ≤5 ppm
  Co:                                 ≤5 ppm
  Cr:                                 ≤5 ppm
  Cu:                                 ≤5 ppm
  Fe:                                 ≤5 ppm
  K:                                  ≤5 ppm
  Mg:                                 ≤5 ppm
  Mn:                                 ≤5 ppm
  Na:                                 ≤300 ppm
  Ni:                                 ≤5 ppm
  Pb:                                 ≤5 ppm
  Zn:                                 ≤5 ppm 

Storage:
密封保存
用途  明膠、動(dòng)物膠、乳酪等的不溶粘劑,人造絲阻縮劑,有機(jī)合成。主要用于醫(yī)藥、紡織、建材、造紙、日用化工、涂料和粘接材料等方面
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