Vinyl acetate

Organic compound

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synonym Vinyl acetate (Organic compound) generally refers to vinyl acetate

Vinyl acetate, also known as vinyl acetate, is a kind of Organic compound , chemical formula is C four H six O two It is an important organic chemical raw material.

On October 27, 2017, world health organization International Agency for Research on Cancer Published Carcinogen Preliminary arrangement of the list for reference, vinyl acetate Category 2B carcinogen List.^[2]

Chinese name: Vinyl acetate^[1]
Foreign name: vinyl acetate；ethenyl ethanoate
Alias: Vinyl acetate 、 vinyl acetate 、 Vinyl acetate
chemical formula: C four H six O two
molecular weight: eighty-six point zero eight nine^[1]
CAS login number: 108-05-4
EINECS login number: 203-545-4
Melting point: -93 ℃^[1]

Boiling point: 72.5 ℃^[1]
Water solubility: Slightly soluble
Density: 0.924 g/cm³
Appearance: colorless liquid
Flash point: -6.7 ℃^[1]
Security description: S7；S16；S23；S29；S33；S36/37；S45
Hazard symbol: F
Hazard description: R11
UN dangerous goods number: one thousand three hundred and one

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Physical and chemical properties

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Melting point: - 93 ℃

Boiling point: 72.5 ℃

Flash point: - 6.7 ℃

Density: 0.924g/cm three

logP：0.73

Refractive index ：1.390

Appearance: colorless transparent liquid

Solubility : slightly soluble in water, soluble in ethanol 、 Ether 、 acetone 、 benzene 、 chloroform Equal majority Organic solvent^[1]

Molecular structure data

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Molar refractive index ：22.08

Molar volume （cm three /mol）：93.1

Isotonic capacity （90.2K）：205.0

surface tension （dyne/cm）：23.4

Polarizability （10 -24 cm three ）：8.75^[1]

Calculate chemical data

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Calculation of drainage parameters reference value (XlogP): None

Number of hydrogen bond donors: 0

Number of hydrogen bond receptors: 2

Rotatable Chemical bond Quantity: 2

Tautomer Quantity: 0

topology molecule Polar surface area ：26.3

Heavy atom Quantity: 6

surface charge ：0

Complexity: 65.9

Isotope atom Quantity: 0

Determine the number of atomic structure centers: 0

Number of uncertain atomic structure centers: 0

Determine the number of chemical bond structure centers: 0

Number of uncertain chemical bond structure centers: 0

covalent bond Number of units: 1^[1]

toxicology data

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1、 acute toxicity

LD fifty ：2900mg/kg（ Rat Oral); 2500mg/kg (rabbit percutaneous)

LC fifty ：11400mg/m three (Inhalation of rats, 4h)

2. Irritating human transocular

22ppm, causing irritation.

3、 Subacute And Chronic toxicity

Rats inhaled 2.4mg/m three , 24h, mild liver enzyme changes.

4、 Mutagenicity

micronucleus test : People lymphocyte 500μ mol/L 。

cytogenetics Analysis: Human lymphocytes 250 μ mol/L.

Sister chromatid exchange : Human lymphocytes 100 μ mol/L.

5、 Teratogenicity

Inhalation of rats was the lowest 6~15 days after pregnancy Poisoning dose (TDLo) 1000ppm (6h), causing musculoskeletal damage Phylogeny Deformities.

6、 carcinogenicity

IARC Carcinogenicity Review: G2B, Suspicious Human Carcinogen 。^[1]

Ecological data

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1、 Ecotoxicity

TLm：19~39mg/L（24~96h）（ Pimephales promelas ）； 18mg/L（96h）（ Blue gill sunfish ）

IC fifty ：35~370mg/L（72h）（ algae ）

2、 Biodegradability

MITI-I test, initial concentration 100ppm, Sludge concentration 30ppm, 90% degraded after 2 weeks.

3. Non biodegradable

In air, when Hydroxyl radical The concentration is 5.00 × 10 five Pcs/cm three Degradation half life 14.5h (theoretical).^[1]

Emergency Management

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Leakage emergency treatment

Evacuate the personnel in the leakage contaminated area to a safe area quickly, isolate them, and strictly restrict access. Cut off the ignition source. proposal Emergency Management Personnel shall wear self-contained positive pressure respirators Fire protection clothing 。 Cut off the leakage source as far as possible to prevent entry sewer 、 Flood discharge ditch And so on.

Small amount of leakage: absorb or absorb with sand or other incombustible materials. Incombustibility can also be used dispersant Brushing with the prepared emulsion, Lotion After dilution, it is put into the waste water system.

Large amount of leakage: build a dike or dig a pit to receive. Spray water cooling and dilution steam Protect the site Personnel, dilute the leakage to no Combustible 。 Transfer to tank car or special purpose with explosion-proof pump collector Inside, recycle or transport to waste disposal Site disposal.

Protective measures

respiratory system Protection: It should be worn when it may be exposed to its vapor Self-priming Filter gas mask （ Half mask ）。 Emergency It is recommended to wear it during rescue or evacuation Air respirator 。

Eye protection: wear chemical Safety goggles 。

Body protection: wear Antistatic clothing 。

Hand protection: wear Latex gloves 。

Others: work site Smoking is strictly prohibited. 。 After work, take a shower and change clothes. Pay special attention to eyes and respiratory tract Protection of.

First aid measures

Skin contact: Take off the contaminated clothes and wash the skin thoroughly with soapy water and clean water.

Eye contact: lift the eyelid, use flowing water or normal saline rinse. Get medical attention.

Inhalation: quickly leave the site to a place with fresh air. Keep the respiratory tract unobstructed. as dyspnea , give oxygen. as Apnea , perform artificial respiration immediately. Get medical attention.

Ingestion: drink enough warm water to induce vomiting. Get medical attention.