Tetrahydrofuran poisoning symptoms?

summary

Tetrahydrofuran (THF) is a colorless, water miscible organic liquid with low viscosity at normal temperature and pressure. The chemical formula of this cyclic ether can be written as (CH2) 4O. Because of its long liquid range, it is a commonly used medium polar aprotic solvent. It is mainly used as the precursor of polymer. Although the odor and chemical properties of THF are similar to those of ether, the anesthetic effect of THF is poor. Tetrahydrofuran poisoning symptoms? Let's talk about it

Tetrahydrofuran poisoning symptoms?

After high concentration inhalation, dizziness, headache, chest tightness, chest pain, cough, fatigue, stomachache, dry mouth, nausea, vomiting and other symptoms may appear, accompanied by eye irritation.

Some patients may have liver dysfunction. The concentration of THF in urine is related to the concentration of THF in the environment. It can also cause nosebleed and gastric bleeding and ulcer; High dose or repeated exposure may lead to hepatic fat infiltration and cytolysis.

20% aqueous solution directly applied to human skin can cause moderate skin irritation, 50% aqueous solution can cause serious corrosive damage. 20% aqueous solution for human eyes can cause serious corneal damage: long term contact can lead to loss of sexual function, fertility, or kidney disease!

matters needing attention

Generally, the products are added with polymerization inhibitor. Store in a cool and ventilated warehouse. Keep away from fire and heat source. The storage temperature should not exceed 30 ℃. The package should be sealed and not in contact with air. It should be stored separately from oxidant, acid, alkali, etc. Explosion proof lighting and ventilation facilities are adopted. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area shall be equipped with leakage emergency treatment equipment and suitable storage materials.