toluene
Health hazards: irritating to skin and mucosa, and anesthetic to central nervous system.
Acute poisoning: Inhalation of high concentration of this product in a short time can cause obvious irritation to eyes and upper respiratory tract, congestion of conjunctiva and pharynx, dizziness, headache, nausea, vomiting, chest tightness, weakness of limbs, stumbling gait and confusion. In severe cases, restlessness, convulsions and coma may occur.
Chronic poisoning: neurasthenia syndrome, hepatomegaly and abnormal menstruation of female workers may occur after long-term contact. Dry skin, chapped skin, dermatitis.
Environmental hazard: it is very harmful to the environment and can pollute the air, water environment and water source.
Danger of explosion: This product is flammable and irritating.
cyclohexanone
Toxicity protection: high concentration of cyclohexanone vapor is narcotic and has inhibitory effect on the central nervous system. Irritating to skin and mucous membrane. High concentration cyclohexanone poisoning will damage blood vessels, cause myocardial, lung, liver, spleen, kidney and brain lesions, and cause massive coagulation necrosis. Through skin absorption, it will cause tremor anesthesia, hypothermia and eventually death. In the atmosphere of 25ppm, the irritation is small, but above 50ppm, it is unbearable. The LC of mice is 0.008. The maximum allowable concentration of cyclohexanone in the workplace is 200mg/m3. Production equipment should be sealed to prevent running, running, dripping and leakage. Operators should wear protective equipment.
health hazard
1. Invasive routes: inhalation, ingestion and percutaneous absorption.
2. Health hazard: This product has anesthetic and stimulating effects. Liquid is irritating to the skin; Eye contact may cause corneal damage. Chronic effects: Long-term repeated contact can cause dermatitis.
methyl alcohol
Health hazard: it has anesthetic effect on the central nervous system; It has a special selective effect on optic nerve and retina, causing pathological changes; Can lead to radioactive acidosis.
Acute poisoning: mild upper respiratory tract irritation after short-term inhalation (gastrointestinal irritation after oral administration); After a period of incubation, headache, dizziness, fatigue, dizziness, drunkenness, confusion, delirium and even coma appear. Optic nerve and retinopathy may include blurred vision, diplopia and even blindness. When metabolic acidosis occurs, the binding force of carbon dioxide decreases and breathing accelerates.
Chronic effects: neurasthenia syndrome, autonomic nerve dysfunction, mucosal irritation, decreased vision, etc. Skin diseases and dermatitis appear on the skin.
Danger of explosion: This product is flammable and irritating.
caustic soda
health hazard
Invasion route: inhalation and ingestion.
Health hazard: This product is highly irritating and corrosive. Dust or smoke will irritate eyes and respiratory tract, corrode nasal septum, and direct contact between skin and eyes with NaOH will cause burns. Mistaken intake can lead to digestive tract burns, mucosal erosion, bleeding and shock.
Hydrogen peroxide solution
Invasive routes of health hazards: skin contact, inhalation and ingestion.
Health hazard: concentrated hydrogen peroxide is highly corrosive. Inhalation of vapor or fog of this product has a strong stimulating effect on respiratory tract. Direct contact with liquid can lead to irreversible damage and even blindness. Oral poisoning can cause abdominal pain, chest pain, dyspnea, vomiting, temporary motor and sensory disorders and elevated body temperature. Individual cases have visual impairment, epileptic spasm and paraplegia.