GB No. 31001
CAS No. 8006-61-9
Molecular Formula C₅H₁₂-C₁₂H₂₆ (aliphatic hydrocarbons and hydrocarbon Central)
molecular 72-170

pale yellow or colorless volatile liquid, with special smell; Flash point : -50 ° C; Melting point <-60 ° C; The boiling point of 40 ~ 200 ° C; Solubility : not soluble in water, soluble in benzene, carbon disulfide, alcohol fat; density : relative density (water = 1) 0.70 ~ 0.79; the relative density (Air = 1) 3.5; Stability : stability; hazard markers : 7 (flammable liquids); the main purposes : for the main steam fuel oil-for rubber, footwear, printing, leather, paints and other industries also be used as mechanical parts cleaner

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested, percutaneous absorption.
health hazards : Acute poisoning : on the central nervous system have a narcotic effect. Mild symptoms of poisoning are dizziness, headache, nausea, vomiting, unstable gait, ataxia. Inhalation of high concentrations of toxic encephalopathy there. Inhalation of high concentrations caused the sudden loss of consciousness and stop breathing reflex. Toxic associated with peripheral neuropathy and chemical pneumonia. Some patients toxic psychosis. Liquid respiratory inhalation can cause aspiration pneumonia. Within splash pleasant to the eye corneal ulcer perforation, or even blindness. Contact with the skin induced acute contact dermatitis, or even burn. Swallowing cause acute gastroenteritis, severe acute inhalation similar poisoning symptoms, and can lead to liver and kidney damage.
chronic poisoning : neurasthenic syndrome, autonomic function similar symptoms of schizophrenia. Skin damage.

two, toxicology information and environmental behavior

toxicity : is low toxicity category.
acute toxicity : LD₅₀67000mg/kg (mice by mouth); LC₅₀103000mg/m3, 2 hours (mouse inhalation)
irritation : human eyes by : 140ppm (8 hours), a mild irritant.
subacute and chronic toxicity : rats inhaled 3g/m3 ,12-24 hours / day, 78 days (120 solvent gasoline), and no symptoms of poisoning. Rats inhaling 2500mg/m3, 130 catalytic pyrolysis gasoline, 4 hours / day, six days / week, for eight weeks, the ability to reduce physical activity, nervous system function changes.

hazardous characteristics : burns easily. Its vapor and air can form explosive mixtures. Case of fire, explosion fever burns easily. With a strong oxidant can respond. Its vapor is heavier than air, will spread to the lower Department of considerable local and met the fire will generate a return to burning.
combustion (decomposition) products : carbon monoxide, carbon dioxide.

3. Emergency Monitoring Methods :
water testing tube
Frederick trachea "chemical substances harmful air Determination," the chemical industry publishers
gas velocity measurement tube (Beijing labor Bulgaria has products)

4. Laboratory monitoring methods : gas chromatography
"air of harmful substances in the Determination" (second edition), Hang Shi-ping series
colorimetry "chemical substances harmful air measured approach" of industrial Science Press

5. Environmental standards :
China (TJ36-79) Workshop harmful substances in the air that the maximum allowable concentration 350mg/m3 [gasoline]
China (to be issued), the source of drinking water of harmful substances in the most high concentrations of 0.3 mg / L
the former Soviet Union (1975) Sewage maximum allowable concentration of organic 3 mg / L

6. Emergency treatment and disposal methods :
a leakage contingency

rapid withdrawal from air leakage personnel to a safe area, and isolation and strict restrictions on access. Cut off the fire source. Recommended emergency personnel wearing respirators-positive pressure self-sufficiency, wearing fire protective clothing. As far as possible, cut off the source of leakage. Preventing access to sewers, flood discharge trench so restrictive space. A small leak : sand, vermiculite or other inert materials to absorb. Or in ensuring security situation, in situ burning. Large leak : to build a causeway or trenching asylum; Foam coverage, lower vapor disasters. Ex pump used to transfer tankers or exclusive collector, recycling or shipped to the disposal of waste disposal sites.

two protective measures

respiratory protection : Most do not need special protection, high concentrations can wear contact since suction filtered gas masks (half-mask).
eye protection : Most do not need special protection, high concentrations can contact the Chemical Safety wearing glasses.
physical protection : antistatic wear uniforms.
hand protection : Wear gloves Oil-benzene.
other : no smoking scene work. To avoid long-term repeated exposure.

three, and emergency measures

contact with the skin : immediately stripped of contaminated clothing, use soap and water thoroughly washed skin. Medical treatment.
eye contact : immediately filed eyelid, with a large number of mobile water or saline thoroughly washed at least 15 minutes. Medical treatment.
Inhalation : rapidly from the scene to fresh air. To keep the airway patency. If breathing is difficult, give oxygen. If breathing stop immediately mouth. Medical treatment. Fresh into
: to use vegetable oils or synthetic gastric lavage and enema. Medical treatment.

fire fighting methods : water cooling containers, if possible to move containers from the scene empty Department. Extinguishant : foam, powder, carbon dioxide. Water fire invalid.