777国产偷窥盗摄精品品在线,韩国精品一区二区三区无码视频,亚洲成人有码原创区,欧美亚洲日韩一区二区黄色网站

1. Product identifier

Substance name ： Ethyl acetoacetate

Synonyms ： Acetoacetic ester; Ethyl 3-oxobutanoate; Ethyl acetylacetate; Ethyl beta-ketobutyrate; 2-ethyl-3-oxobutanoate; Ethyl 3-Oxobutanate

CAS No. ： 141-97-9

EINECS No. ： 205-516-1

Molecular Formula ： C₆H₁₀O₃

M olecular   weight ： 130.1344

Molecular Structure ：

 

2. Physical and chemical properties

Character: colorless liquid with pleasant fruit aroma.

Density ： 1.028g/cm³

Melting point ： -45 ℃

Boiling point ： 236.3°C at 760 mmHg

Flash point ： 111°C

W ater solutility ： 116 g/L (20 ℃ )

Vapour pressure ： 0.0164mmHg at 25°C

Solubility(ies) :   Miscible with general organic solvents, soluble in water

3. Hazards identification

Hazard pictogram(s): 

Xi :Irritant;

precautionary statement ： S24/25  

4. Specification ：

ITEM	STANDARD
Appearance	transparent liquid
Content	≥99%
Acidity (as CH 3 COOH)	≤0.20%
Density	1.020-1.030 g/cm3
Moisture	≤0.20%

 5. Application ：

（ 1 ）  Widely used in food flavor and Pharmaceutical intermediates of Vitamin B, aminopyrin , etc

（ 2 ） Raw materials for dyestuff, coating solvent and organic industry