China high quality chromium trichloride wholesale
Molecular weight :266.45
Physicochemical Properties: dark green crystal. specific weight:1.835, easily dissolves in water, ethanol, not dissolved in ether. exhibits hygroscopic property.
Applications and Usages: Preparation of other inorganic or organic chromium, catalysts , dye mordant polymerization adhesive and use for chromium plating. Basic chromium chloride is often used as adhesivem tannage,waterproof agent .
After boiling with water for a long time, it becomes a green solution. When heated in air, it becomes chromium trioxide. It can be sublimated in chlorine gas stream and heated with carbon tetrachloride at 400 ℃ to obtain kinetic inert purple anhydrous substance. HEXAHYDRATE has three varieties: dark green, light green and purple. It becomes a mixture of dark green and purple in aqueous solution, but dark green in DMSO, DMF, ethanol and other organic solvents
Acute toxicity: LD50: 1870 mg / kg in rats;
Generally, it is slightly harmful to the water body. Do not put undiluted or large quantities of products in contact with groundwater, watercourses or sewage systems. Do not discharge materials into the surrounding environment without the permission of the government.
Matters Needing Attention
Health hazard: the product is of low toxicity. It may have sensitizing effect and cause asthma like attack. Irritating to eyes, skin and mucous membrane.
Environmental hazard: it is harmful to the environment and may cause pollution to the water body.
Explosion hazard: the product is non combustible, irritant and allergenic.
First aid measures
Skin contact: take off contaminated clothes and rinse with plenty of flowing water.
Eye contact: lift eyelids and wash with flowing water or normal saline. See a doctor.
Inhalation: quickly leave the scene to fresh air. Keep respiratory tract unobstructed. If you have difficulty breathing, give oxygen. If breathing stops, give artificial respiration immediately. See a doctor.
Ingestion: drink enough warm water to induce vomiting. See a doctor.
Fire fighting measures
Hazard characteristics: it cannot burn itself. It is decomposed by high heat and gives off poisonous gas.
Harmful combustion product: hydrogen chloride.
Fire fighting method: Firefighters must wear full body fire and gas protective clothing and put out the fire upwind. When putting out the fire, move the container from the fire site to the open area as far as possible. Then according to the cause of the fire, choose the appropriate extinguishing agent to put out the fire.
Leakage emergency treatment
Emergency treatment: isolate the contaminated area and restrict access. It is suggested that emergency treatment personnel should wear dust masks and general work clothes. Do not touch the leakage directly.
Small amount of leakage: avoid dust, sweep up carefully, put in bags and transfer to a safe place.
Large amount of leakage: collect and recycle or transport to waste treatment site for disposal.
Handling and storage
Operation precautions: closed operation, local exhaust. Prevent dust from releasing into the air of the workshop. Operators must be specially trained and strictly abide by the operating procedures. It is suggested that operators should wear self-priming filter dust mask, chemical safety glasses, rubber acid and alkali resistant clothing and rubber acid and alkali resistant gloves. Avoid dust. Avoid contact with oxidants. Equipped with leakage emergency treatment equipment. Empty containers may contain harmful substances.
Storage precautions: store in a cool and ventilated warehouse. Keep away from fire and heat source. Keep out of direct sunlight. The package must be sealed and free from moisture. It should be stored separately from oxidant and avoid mixed storage. The storage area should be equipped with suitable materials to contain the leakage.
25kg pp bag, or in terms of customers' requirements.