This product is a colorless, transparent and volatile liquid, which is easy to burn and belongs to a flammable liquid with medium flash point. Volatile fragrance. When benzene vapor is mixed with air, it can produce explosive mixture, and the explosion limit is 1.4% ~ 8.0%. It is narcotic and toxic, insoluble in water and soluble in many organic solvents, such as ethanol and ether. The poisoning concentration is 25× 10-6. Long-term inhalation can cause benzene poisoning.
2. Acetone
This product is a colorless and transparent liquid, which is volatile, fragrant and flammable. The flash point is -20℃, the ignition temperature is 465℃, and the minimum ignition quantity is 1. 157mJ. There is a brilliant flame when burning, and steam and air form an explosive mixture, with the lower explosion limit of 2.55% and the upper explosion limit of 12.8%. It is toxic and has anesthetic effect.
3. Cyclohexane
This product is a colorless flowing liquid, which has the pungent smell of gasoline, is flammable and volatile, and has anesthetic effect. Steam and air form an explosive mixture, the explosion limit is 1.2% ~ 8.4%, and contact with oxidant is easy to cause combustion.
4. Ethers
Colorless and transparent liquid, extremely volatile and flammable. Exposure to strong sunlight will make the container expand and burst rapidly, which is more dangerous than gasoline; Explosion due to interaction with perchloric acid or chlorine; The flash point is -40℃, which belongs to low flash point flammable liquid; The explosion limit is 1.7% ~ 48% (by volume). It has fragrance and anesthetic effect, and its vapor can make people lose consciousness and even die.
5. alcohol
It has the smell of white wine, pungent taste, anesthetic and irritating effects on the skin, and can be mixed with water, ether, chloroform, glycerol, etc. Industrial alcohol is toxic and should not be used as a drink. Alcohol is flammable and volatile and can be used as fuel. When burning, smokeless flame is released, with flash point 12℃ and ignition point of 363℃. Steam is easy to catch fire and explode. When alcohol vapor is mixed with air, an explosive mixture can be formed, with the lower explosion limit of 3.3% and the upper explosion limit of 19%.
6. Amyl acetate
This product is a colorless liquid with the smell of bananas or pears. Flammable, flash point is 23 ~ 6 1℃. The mixture of steam and air can form an explosive mixture, and the explosion limit is 1. 1% ~ 7.5%. In case of fire and oxidant, it is a flammable liquid with high flash point.
7. Carbon disulfide
This product is a colorless, toxic and flammable liquid with low flash point and extremely flammable flash point of -30℃. Excessive inhalation can cause dizziness and difficulty breathing. Slightly soluble in water. Carbon disulfide is very sensitive to light. After exposure, the color turns yellow and the smell increases. Its vapor is toxic, and the poisoning mass fraction is (15 ~ 20) × 10-6. When it is mixed with air, it forms a mixture which is easy to burn or explode. The explosion limit is 1% ~ 60%, which is very dangerous. After combustion, it produces irritating toxic gas SO2.
8. Difluorobenzene
Difluorobenzene has an aromatic and pungent smell, is toxic, and burns with an open flame, with a flash point of 2℃.
9. Rosin oil
Rosin oil is a colorless to dark brown liquid, composed of a mixture of hydrocarbons, insoluble in water, but soluble in organic solvents such as ethanol, ether and chloroform. Flammable, flash point is 35℃, which is a high flash point flammable liquid; The spontaneous combustion point is 253℃, which can cause fire or explosion when it meets oxidant, and the lower limit of explosion is 0.8%. It heats up when it meets sulfuric acid, which is toxic. Steam can irritate the eye membrane and trachea.
10. anhydrous hydrazine
This product is a colorless transparent fuming liquid with the smell of ammonia. Soluble in water and ethanol, insoluble in chloroform and ether; Unstable in nature, it is a lively and strong reducing agent; Volatile, easy to burn in case of high heat, open flame or oxidizing substances, and may explode; Flash point is 52℃, auto-ignition point is 270℃, and explosion limit is 4.7% ~ 100%. High heat is released when burning, and toxic nitrogen compound gas is generated when heating; It is corrosive and highly toxic. Inhalation of steam, ingestion or skin contact can cause poisoning, burn the skin in severe cases, and be easily absorbed through the skin.
1 1. pyridine
This product is a colorless or yellowish liquid with a special odor, which can make people sick. Soluble in water, ethanol, ether, benzene, petroleum ether and animal and vegetable oils, it is an excellent solvent for many organic compounds; Flammable, flash point is 17℃, and it is a medium flash point flammable liquid. Steam is easy to form explosive mixture with air, and the explosion limit is 1.8% ~ 12.4%. Toxic.
12. thioacetic acid
This product is a colorless liquid with pungent smell and corrosiveness. Soluble in water, ethanol and ether; Unstable, can be decomposed into acetic acid and toxic hydrogen sulfide gas; Flammable, with a flash point of-18 ~ 23℃, belonging to a medium flash point flammable liquid.