2L06 Group 5 Benzene (Version 3)Presentation Transcript
CHEMICAL LOGISTICS BENZENE Members: Jane Tan (s10049162D) Poon Yoke Chee ( s10046916F) Tan Lee Min ( s10047130J) Yeo Cai Hua ( s10049307C)
A colorless, liquid, inflammable, aromatic hydrocarbon of chemical formula C 6 H 6
Benzene is a toxic substance, and prolonged exposure to concentrations in excess of 35–100 parts per million in air
Paint remover e.g. thinner
Rubber e.g. for shoes & tires
Solvent for degreasing metals
As an intermediate to produce other chemicals
USES OF BENZENE
Acute Health Effects:
Inflammation of eye
Irritation of the stomach
Increase in heart rate
Chronic Health Effects:
Damages the bone marrow
Causes a decrease in red blood cells
May cause excessive bleeding
Damages the liver
Affects urinary system
Decrease in ovary size for women
Auto-Ignition Temp: 497.78˚C
Flash Point: -11.11˚C
Products of Combustion: carbon oxides (CO, CO2)
FIRE & EXPLOSION DATA
Fire Hazards in Presence of Substances:
Open flames & sparks Highly Flammable
Oxidizing materials Slightly Flammable
Powdered Chromic Anhydride
FIRE & EXPLOSION DATA causes ignition
Explosion Hazards in Presence of Substances:
Oxidizing materials of acids
Fire Fighting Instructions:
Small Fire Use DRY chemical powder
Large Fire Use alcohol foam, water spray/fog
FIRE & EXPLOSION DATA BOOOM!!
Flush eyes with plenty of warm water for at
least 15 mins. Get medical attention immediately.
Flush skin with plenty of water. Cover the irritated
skin. Remove contaminated clothing. Wash clothes
thoroughly before reuse. Get medical attention.
FIRST AID MEASURES
Serious Skin Contact:
Wash with disinfectant soap & cover
contaminated skin with anti-bacterial cream.
Seek immediate medical attention.
Move to a place with lots of fresh air. Give
artificial respiration if the person is not
FIRST AID MEASURES
Evacuate to a safe area. Loosen tight
clothing. Administer oxygen is breathing is
Never give anything by mouth to an
unconscious person. Loosen tight clothing like
a belt, collar or tie.
FIRST AID MEASURES
WORLD CONSUMPTION From the diagram above, we can deduce that United States and Western Europe stand the most portions in the pie chart. North America alone stands 33% of the world consumption.
WORLD CONSUMPTION China’s total benzene consumption is 3.5 million tonnes. Ethylbenzene with 49.1% occupies the most. Because it is used for those common items we will use in our daily lives & some are needed for almost everyone. Used in: paints, lacquers, adhesives, inks, and cleaning materials. In production of - dyes, perfumes, plastics and pesticides
TRANSPORTATION As benzene is classified class 3 for flammability, we need to be very careful when we transport benzene. We must be aware things that can cause fire to be put a distance away from benzene. From the information of personal safety provided by the MSDS, we should put on splash goggles, lab coat, vapour respirator and gloves to protect themselves from coming in contact with benzene. Before we transport benzene, we should consult a specialist before handling this product.
In November 13 2005, an explosion occurred at a PetroChina chemical plant in Jilin Province that released over a hundred tons of benzene and nitrobenzene into the 1,897-kilometer-long (1,176-mile) Songhua River. The enormous benzene slick then flowed through the Heilongjiang Provinces’ capital Harbin and into Russia by way of the Amur river. Benzene levels were 108 times above national safety levels. The polluting material index had dropped to 29 times above national safety levels when the contaminants reached the border of Jilin and Heilongjiang Songyuan, a city of more than 400,000 located between Jilin and Harbin, shut off the part of its water system that is linked to the river but told the public it was just doing repairs. Residents were warned not to drink water from rivers. The Jilin Petrochemical Company plant where the November explosions occurred .
Earlier in January 2006, the spill itself passed Russia's major Far Eastern urban centre Komsomolsk-on-Amur. Benzene pollution levels in the Amur River remained within permitted levels, the Russian Emergency Situations Ministry said on January 6, 2006. Subsequently, the spill proceeded through scarcely populated plains until it reached the Pacific in the Sea of Okhotsk. Polluted Songhua River is seen as the State Environment Protection Administration confirmed that pollutants containing benzene and nitrobenzene contaminated the river after a chemical-plant blast at the upper reaches in Northeast China. Marked off with warning tape, the polluted Songhua River is frozen over.
Dead fish can be seen in the Songhua River as the State Environment Protection Administration confirmed that pollutants containing benzene and nitrobenzene contaminated the river after a chemical-plant blast at the upper reaches in Northeast China. Polluted water in Songhua River reaches Harbin, the capital of north-eastern Heilongjiang province November 24, 2005. A stretch of potentially lethally polluted river water headed towards one of China's biggest cities after an explosion at a petrochemical plant. The blast had caused 'major pollution' in the Songhua River from which Harbin and home to nine million people, draws its drinking water.
On November 26 th , 2005, another chemical plant exploded in China, spewing toxic benzene into the water supply of a central region as authorities in the country's north-east struggle to protect millions of people from an earlier spill. The blast at the Yingte Chemical Co in Dianjiang, part of the huge Chongqing municipality straddling the middle reaches of the Yangtze River, killed one worker and forced the evacuation of 6000 nearby residents and the closure of schools. People in the area were warned not to drink water from the local river, a tributary of the Yangtze, because of concern that carcinogenic benzene had spilled.
REVIEW ON GROUP 1
Hydrofluoric acid is dangerous, poisonous and corrosive.
Effects: Death, severe burns which may not be painful or visible immediately, liquid and vapour can burn skin, eyes and respiratory tract and bone Damage
Hydrofluoric acid has no flash point and no flammable limit
Fire fighters should wear breathing apparatus and full protective clothing when handling with this chemical
It reacts with metals
Uses: Propellants, insecticide, stain removal, leather industry – tanning, wielding and stainless steel pickling, Drugs and dye production.