Identification

Chinese name ：Ethyl acetate

Dangerous goods number：32127

English name：Ethylacetate

UN number：1173

Molecular formula：C4H8O2

Molecular weight：88.1

CAS number：141-78-6

Physical and chemical properties

Appearance and traits

A colorless, transparent water-like liquid that is volatile and has a fruity aroma.

Melting point (°C)

-83.6

Relative density (water = 1)

0.90

Relative density (air = 1)

3.04

Boiling point (°C)

77.15

Saturated vapor pressure (kPa)

13.33/27℃

Solubility

Miscible with ethanol, acetone, chloroform, and diethyl ether.

Toxicity and health hazards

Route of invasion

Inhalation, ingestion, percutaneous absorption.

toxicity

LD50: 5620mg/kg (rat oral); 4940mg/kg (free oral)

Health hazard

LC50: 5760mg/m3, 8 hours (rat inhalation)

First aid method

It has a stimulating effect on eyes, nose and throat. High concentration of inhalation can cause progressive anesthesia, acute pulmonary edema, liver and kidney damage. Continued inhalation can cause respiratory paralysis. Mistakes can cause nausea, vomiting, abdominal pain, abdominal pain, diarrhea, etc. It has a sensitizing effect, causing bleeding gums due to vascular and neurological disorders; it can cause eczema-like dermatitis. Chronic effects: long-term exposure to this product can sometimes cause corneal opacity, secondary anemia, leukocytosis and so on.

Burning explosion hazard

Flammability

combustible

Combustion decomposition product

Carbon monoxide, carbon dioxide.

Flash point (°C)

-4

Upper explosion limit (v%)

11.5

Ignition temperature (°C)

426

Lower explosion limit (v%)

2.0

Construction fire risk classification

nail

stable

stable

Polymerization hazard

No aggregation

Incompatibility

Strong oxidants, alkalis, acids.

Dangerous characteristics

Flammable, its vapor and air can form an explosive mixture. In case of fire, high heat can cause fire and explosion. Contact with oxidizing agents will react violently. In a fire, heated containers are in danger of explosion. Its vapor is heavier than air and can spread to a relatively distant place at a lower place.

Storage and transportation conditions

Storage and transportation conditions: Store in a cool, ventilated warehouse, away from fire and heat. Keep the container sealed; it should be stored separately from oxidants, acids and alkalis. Avoid mixing. It should be handled lightly and gently during handling to prevent damage to packaging and containers. The tank (tank) used in transportation should have a grounding chain, and a hole partition can be arranged in the tank to reduce the static electricity generated by the shock. It is strictly forbidden to mix and transport with oxidants, acids, alkalis, food chemicals, etc. The vehicle exhaust pipe carrying the item must be equipped with a fire-stop device, and it is forbidden to use the mechanical equipment and tools that are prone to sparks. When transporting by road, follow the prescribed route and do not stay in residential areas and densely populated areas. It is forbidden to slip when transporting by rail. It is strictly forbidden to transport in bulk by wooden or cement vessels. Leakage treatment: Rapid evacuation of personnel from the contaminated area to the safe area, isolation and strict restrictions on access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and wear fire protective clothing. Cut off the source of leakage as much as possible to prevent entry into restricted spaces such as sewers and flood drains. Small amount of leakage: absorbed with activated carbon or other inert materials. It can also be rinsed with a large amount of water, diluted in water and placed in the wastewater system. A large number of leaks: building dikes or digging pits; covering with foam to reduce steam disasters. Transfer to a tank truck or special collector with an explosion-proof pump, recycle or transport to a waste disposal site for disposal.

And leak handling

Extinguishing media: anti-solvent foam, carbon dioxide, dry powder, sand. Fire extinguishing with water is not effective, but water can be used to keep the container cool in the fire.