Neopentane, also known as 2,2-dimethylpropane, is an organic compound with the chemical formula CfiveHtwelveIt is a colorless gas under normal temperature and pressure, and a highly volatile liquid under standard conditions.Neopentane is insoluble in water, but soluble in ethanol, ether, carbon tetrachloride, etc.Gas mixed with air, explosion limit 1.4~7.5% (volume), mainly used for preparing butyl rubber.[1]
2. Subacute and chronic toxicity: rats, exposed to 800mg/m all daythreeFor 117 consecutive days, there was no change in activity and weight.
3. Others: LCLo: 1097000mg/mthree(Inhaled by mice)[4]
Storage method
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It shall be stored in a cool and ventilated special warehouse for flammable gas.Keep away from kindling and heat sources.The warehouse temperature should not exceed 30 ℃.Keep container sealed.It shall be stored separately from oxidant and shall not be mixed.Explosion proof lighting and ventilation facilities shall be adopted.It is prohibited to use mechanical equipment and tools that are easy to generate sparks.The storage area shall be equipped with leakage emergency treatment equipment.[2]
Emergency treatment
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Leakage emergency treatment
Evacuate the personnel in the leakage contaminated area to the windward place quickly, isolate them, and strictly restrict access.Cut off the ignition source.It is recommended that emergency personnel wear self-contained positive pressure respirators and fire protection clothing.Cut off the leakage source as much as possible.In case of gas, cover the sewer and other places near the leakage point with industrial coating or adsorption/absorbent to prevent gas from entering.Reasonable ventilation to accelerate diffusion.Dilute with spray water.Or it can be led to the furnace or burned in the depression by pipeline.If there is no danger, burn on the spot, and spray water to cool the surroundings to prevent other combustibles from catching fire.Leaking containers shall be properly treated, repaired and inspected before reuse.If it is liquid, prevent it from entering into restricted spaces such as sewers and flood discharge ditches.
Small amount of leakage: absorb or absorb with sand or other incombustible materials.
Large amount of leakage: build a dike or dig a pit to receive;Cover with foam to reduce steam disaster.Use explosion-proof pump to transfer to tank car or special collector for recycling or transport to waste disposal site.
Protective measures
Respiratory system protection: generally, no special protection is required, and self inhalation filter gas mask (half mask) can be worn in case of high concentration contact.
Eye protection: Generally, no special protection is required, and chemical safety goggles can be worn in case of high concentration contact.
Body protection: Wear anti-static work clothes.
Hand protection: wear general operation protective gloves.
Others: Smoking is strictly prohibited at the work site.Avoid high concentration inhalation.When entering tanks, confined spaces or other high concentration areas for operation, someone must supervise.
First aid measures
Skin contact: Take off the contaminated clothes and wash the skin thoroughly with soapy water and clean water.
Eye contact: Lift the eyelid and flush with flowing water or physiological saline.Get medical attention.
Inhalation: quickly leave the site to a place with fresh air.Keep the respiratory tract unobstructed.If breathing is difficult, give oxygen.If breathing stops, perform artificial respiration immediately.Get medical attention.
Ingestion: drink enough warm water, induce vomiting, and seek medical advice.
Extinguishing method: cut off the gas source.If the gas source cannot be cut off immediately, it is not allowed to extinguish the burning gas.Spray water to cool the container, and move the container from the fire site to an open place if possible.
