Question 2: ethyl acetate is the representative of ester, what kind of substance is that ethyl acetate, is it an ester, and what is the structural formula?
No pure ethyl ester is that kind of substance, there must be some kind of acid.
Question 3: What is the use of ethyl acetate? Its main uses are: as an industrial solvent, used in coatings, adhesives, ethyl cellulose, artificial leather, linoleum colorants, artificial fibers and other products; As an adhesive, it is used in the production of Yinfu ink and artificial pearls; As an extractant, it is used in the production of medicines, organic acids and other products; As a spice raw material, it is used as the main raw material of pineapple, banana, strawberry and other fruit flavors and whiskey, cream and other spices. Used as solvent, and used in the synthesis of dyes and some pharmaceutical intermediates. It is one of the synthetic flavors with a large amount in food flavors, and is widely used to prepare banana, pear, peach, pineapple, grape and other fragrant food flavors. It is a quick-drying solvent for nitrocellulose, ethyl cellulose, cellulose acetate and neoprene, and also a low-toxic solvent used in industry. It can also be used as a cleaning agent for textile industry and an extractant for natural spices, and it is also an important raw material for pharmaceutical industry and organic synthesis.
Question 4: What harm does ethyl acetate do to people? "Ethyl acetate" is a colorless liquid which is particularly smelly, flammable and explosive. Dan can be absorbed through the respiratory tract and digestive tract, damaging the nervous system and removing sebum. Cough, dyspnea, dizziness, sore throat, abdominal pain, diarrhea, skin and conjunctiva congestion and pain may occur when inhaled or ingested.
Question 5: What is hydroxyphenylethyl ester?
Chemical name: ethyl p-hydroxybenzoate
Alias: ethyl nipagin
This product is obtained by esterification of p-hydroxybenzoic acid with ethanol. It belongs to esters and is often used as antibacterial preservative.
Used as preservative for food, medicine and cosmetics.
Can cause contact dermatitis, urticaria, vascular edema, contact with eyes can cause pain and * * *. You can feel numb when you touch your lips.
Question 6: What is ethyl acetate? Ethyl acetate is a colorless and transparent liquid, which has a * * * odor at high concentration, is volatile, sensitive to air, and can absorb water. Moisture can make it slowly decompose and show an acidic reaction. It is miscible with chloroform, ethanol, acetone and ether and soluble in water (10%ml/ml). Can dissolve some metal salts (such as lithium chloride, cobalt chloride, zinc chloride, ferric chloride, etc.). The relative density is 0.902. Melting point -83℃. The boiling point is 77℃. Refractive index 1.37 19. Flash point is 7.2℃ (open cup). Flammable. Steam can form an explosive mixture with air. Median lethal dose (rat, oral) 1 1.3ml/kg. Have * * * sex.
Chinese name: ethyl acetate
English name: ethyl acetate
Nicknames: ethyl acetate, ethyl acetate, beet molasses.
Chemical formula: C4H8O2
Molecular weight: 88. 1 1 g? mol? 1
CAS login number: 14 1-78-6
EINECS login number: 205-500-4
Melting point:-84 c (189.55k)
Boiling point: 77 °C(350.25 K)
Water solubility: 8.3 g/100 ml (20 c)
Density: 0.897
Appearance: colorless liquid
Flash point:-4 C.
Application: Organic chemicals, flavors and fragrances, paints, medicines and other industries.
Security description: s: s16-s26-s33.
Hazard symbol: NFPA 704
Hazard description: r: r11-r36-r66-r67.
Dangerous goods transport number: 32 127
SMILES:CC(=O)OCC
Refraction: 1.3720
Viscosity: 0.426(25 °C)
Dipole moment: 1.78
Main hazards: flammable and * * *.
Critical point: 250.11c (523.26k)
UN number: 1 173
RTECS:AH5425000
Pinyin: yǐ suān yǐ zhǐ