2. Environmental impact:
1. Health hazards
Route of entry: inhalation, ingestion, percutaneous absorption.
Health Hazards: Harmful by inhalation, oral administration or skin absorption, and its toxic effects may be similar to benzene.
2. Toxicological information and environmental behavior
Acute toxicity: LD504399mg/kg (rat oral); LC5026908mg/kg (rat inhalation)
Hazardous characteristics: flammable, in case of open flame, high heat or contact with oxidants, there is a danger of burning and explosion. Its vapor is heavier than air, and it can spread to a considerable distance at a lower place, and it will cause flashback in case of an open flame.
Combustion (decomposition) products: carbon monoxide, carbon dioxide, hydrogen fluoride.
3. On-site emergency monitoring methods:
4. Laboratory monitoring methods:
Chromatography/Mass Spectrometry (refer to EPA 524.2)
Gas chromatography, refer to "Analytical Chemistry Handbook" (Volume 4, Chromatographic Analysis), Chemical Industry Press
5. Environmental standards:
6. Emergency treatment and disposal methods:
1. Emergency treatment of leakage
Quickly evacuate personnel from the leaked contaminated area to a safe area, isolate them, and strictly restrict access. Cut off the source of ignition. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and fire protection clothing. Cut off the source of leakage as much as possible to prevent entry into restricted spaces such as sewers and flood drains. Small spills: Mix with sand, dry lime or soda ash. It can also be scrubbed with an emulsion made of a non-flammable dispersant, which is diluted and put into the waste water system. Large leakage: build embankments or dig pits for containment; cover with foam to reduce steam hazards. Transfer it to a tanker or a special collector with an explosion-proof pump. Recycle or transport to a waste disposal site for disposal.
2. Protective measures
Respiratory protection: When the concentration in the air exceeds the standard, you shouldWear a self-priming filter gas mask (half mask). Air respirator or oxygen respirator should be worn during emergency rescue or evacuation.
Eye Protection: Wear chemical safety goggles.
Body Protection: Wear anti-static overalls.
Hand Protection: Wear rubber gloves.
Others: Smoking is strictly prohibited at the work site. After work, take a shower and change clothes. Pay attention to personal hygiene.
3. First aid measures
Skin Contact: Remove contaminated clothing and rinse skin thoroughly with soap and water.
Eye Contact: Lift the eyelids and flush with running water or normal saline. seek medical attention.
Inhalation: Quickly leave the scene to fresh air. Keep the airway open. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. seek medical attention.
Ingestion: Drink enough warm water, induce vomiting, seek medical attention.
Extinguishing method: spray water to keep fire container cool. Move the container from the fire area to an open area as much as possible. Containers in fire must be evacuated immediately if they have discolored or produced sounds from safety pressure relief devices. Extinguishing media: foam, dry powder, carbon dioxide, sand.