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Ethyl acetoacetate

Cas:
141-97-9
Molecular Structure:
MDL:
MFCD00009199
Molecular Formula:
C6H10O3; CH3COCH2COOC2H5
Molecular Weight:
130.14
Alias:
丁酮酸乙酯,3-氧代丁酸乙基酯,乙酰醋酸乙脂ACE Acetoacetic ester EAA 3-Oxobutyric Acid Ethyl Ester Acetoacetic Acid Ethyl Ester Ethyl 3-Oxobutyrate
Product order:
Name Specifications Packing Price Delivery
Ethyl acetoacetate AR 25L RMB 2084.5 Consulting service
Ethyl acetoacetate GR 20L RMB 2183.5 Consulting service
Ethyl acetoacetate GR 2.5L RMB 415.8 Consulting service
Ethyl acetoacetate GR 500ml RMB 132 Consulting service
Ethyl acetoacetate CP 500ml RMB 33 Consulting service
Ethyl acetoacetate AR 500ml RMB 50.6 Consulting service
Character:
無色透明液體。有水果香。遇三氯化鐵呈紫色。溶于乙醚、苯、乙醇、乙酸乙酯、氯仿和丙酮等一般有機(jī)溶劑,溶于約35份水。低毒,半數(shù)致死量(大鼠,經(jīng)口)3.98G/kG。有刺激性。水溶性116 g/L (20℃)。  
密度:1.029
熔點(diǎn):-45℃
沸點(diǎn):180℃
閃點(diǎn):85℃
   一般的乙酰乙酸乙酯是酮式和烯醇式互變異構(gòu)體和平衡混合物,酮式占92.3%,烯醇式占7.7%。酮式乙酰乙酸乙酯沸點(diǎn)為41℃(0.267kPa),不能與溴起加成反應(yīng),也不使三氯化鐵顯色,但能與酮試劑作用。烯醇式乙酰乙酸乙酯沸點(diǎn)為33℃(0.267kPa),不與酮試劑作用,但能使三氯化鐵顯紫色,烯醇分子內(nèi)可發(fā)生氫鍵締合,形成螯合環(huán)。因此,烯醇式都以單分子形態(tài)存在,沸點(diǎn)較低。
Quality Standard:
項(xiàng)目Item                                  分析純  
                                           (AR)          
沸程Boiling range,℃                    180.0-181.5  
相對(duì)密度Specific gravity (20/20°C)     1.020-1.029  
折光率Refractive index n20/D            1.4190-1.4196
水分Water                                 <0.5 % (K.F.)
酸度Acidity (CH3COOH)                     <0.1 %  


項(xiàng)目                                      化學(xué)純  
                                           (CP)
沸程Boiling range,℃                      180.0~181.5
相對(duì)密度Specific gravity (20/20°C)       1.020~1.029
折光率Refractive index n20/D              1.419~1.421        
外觀Appearance                            合格
酸度Acidity(以H+計(jì))/(mmol/100g)         ≤8.0


項(xiàng)目                                      優(yōu)級(jí)純    
                                           (GR)
外觀Appearance                           無色透明液體
紅外光譜鑒別Infrared spectrometry        符合
純度Purity                               >99.0% (GC)
相對(duì)密度Specific gravity (20/20°C)      1.0280 - 1.0330
折光率Refractive index n20/D             1.4180 - 1.4200
水分Water                                <0.1 % (K.F.)
酸度Acidity (CH3COOH)                    <0.1 %  
  

Storage:
密封保存。
用途  溶劑。有機(jī)合成。檢定鉈。測(cè)定氧化鈣、氫氧化鈣和銅。測(cè)定高鐵的絡(luò)合指示劑。氣相色譜固定液(最高使用混度50℃,溶劑為丙酮),分離分析低級(jí)烴異構(gòu)物,分離正、異-1-丁烯和順、反-2-丁烯。 
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