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Acrylic acid;Propenoic acid

GB
CAS No. 81617, 79-10-7
Molecular Formula C3H4O2; CH2CHCOOH
molecular 72.06

colorless liquid, irritating odor; vapor pressure 1.33kPa/39.9 ° C flashpoint 50 ° C the temperature 14 ° C; the boiling point of 141 ° C; solubility : Compatibility with water, immiscible in ethanol, ethyl ether; density : relative density (water = 1) 1.05; the relative density (Air = 1) 2.45; Stability : stability; Adversity risk Marker 20 (corrosive acid); the main purposes : for the resin manufacturing


2. The impact on the environment :
a health hazard


pathways : inhaled, ingested, percutaneous absorption.
health hazards : the goods to the skin, eyes and respiratory tract have a strong stimulating effect.


two, toxicology information and environmental behavior


toxicity : is low toxicity category.
acute toxicity : LD502520mg/kg (rat oral); 950mg/kg (percutaneous rabbit); LC505300mg/m3, 2 hours (inhalation in mice )
Mutagenicity : Cytogenetic analysis : mouse lymphocytes efficacy / L, respectively.
reproductive toxicity : Rats were poisoning the lowest dose (TDL0) : 73216ug/kg (progesterone 5 ~ 15 days), embryo toxicity, musculoskeletal abnormalities.
cancer : IARC carcinogens comments : Animals, humans are no reliable data.


hazardous characteristics : its steam with the formation of an explosive mixture of air and met the fire, high-heat combustion caused the explosion. With a strong oxidant can respond. In case of high fever, polymerization reaction may occur, large exothermic phenomenon of container rupture and explosion.
combustion (decomposition) products : carbon monoxide, carbon dioxide.


3. Emergency Monitoring Methods :


4. Laboratory monitoring methods : gas chromatography
"Determination of atmospheric environment acrylic compounds" Suzhou, Shanghai Environmental Monitoring, 1998 (1) P115 ~ 16


5. Environmental standards :
former Soviet air workshop harmful substances maximum allowable concentration 5mg/m3
the former Soviet Union (1975) Harmful Substances in Water maximum allowable concentration of 0.5 mg / L
olfactory threshold concentration 0.094ppm


6. Emergency treatment and disposal methods :
a leakage contingency


leak contaminated areas evacuated personnel to a safe area, not to prohibit access to the contaminated area, cut off the source of fire. Recommended emergency personnel wearing self-contained breathing apparatus to wear chemical protective clothing. Do not direct contact with leakage, in ensuring the safety of plugging. Water fog can reduce evaporation but do not enter the water storage containers. Use sand or other absorbent non-flammable mixture absorption, then collect and transport the waste to disposal sites. If large spills, using a causeway asylum, and then to collect, transfer, recycling or waste processed sound.


two protective measures


respiratory protection : concentration in air overweight, they should wear protective masks. Emergency rescue or escape, wear self-contained breathing apparatus.
eye protection : Wear protective chemical safety glasses.
protective clothing : wearing overalls (anti-corrosion material).
hand protection : Wear rubber gloves.
other : work, take a shower. Pay attention to personal hygiene.


three, and emergency measures


contact with the skin : the pollution off clothing, immediately wash with water for at least 15 minutes.
eye contact : immediately filed eyelid, mobile or saline irrigation water for at least 15 minutes.
Inhalation : rapidly from the scene to fresh air. To keep the airway patency. When necessary, respirators. Medical treatment. Fresh into
: coverage to those who drink large warm water, the symptoms and to seek medical treatment.


fire fighting methods : mist of water, carbon dioxide, sand, anti-insoluble bubble.


Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data".
Structure:
Please see below "More Detailed Data"
More Detailed Data:
1) propenoic acid;acrylic acid
2) acrylic acid;propenoic acid
3) ;acrylic acid;propenoic acid
4) 2-Propenoic acid;Acroleic acid;Acrylic acid
5) Acrylic acid;Acroleic acid;Ethylene carboxylicacid;Propenoic;Vinylformic acid
6) Acrylic acid
7) 2-Propenoic acid,polymer with isooctyl 2-propenoate
8) methacrylic acid;2-methylacrylic acid;2-methylpropenoic acid
9) methacrylic acid;2-methylpropenoic acid
10) methacrylic acid;2-mwthylacrylic acid;2-methylpropenoic acid
Notice Some description was translated by software and the data is only as a reference.
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