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Benzene

CAS No. 71-43-2
Chemical Name: Benzene
Synonyms: PHENE;BENZOL;Benzen;Fenzen;BENZENE;Benzeen;Benzole;Benzolo;Annulene;BenzeneI
CBNumber: CB6854153
Molecular Formula: C6H6
Formula Weight: 78.11
MOL File: 71-43-2.mol
Benzene Property
Melting point : 5.5 °C(lit.)
Boiling point : 80 °C(lit.)
density : 0.874 g/mL at 25 °C(lit.)
vapor density : 2.77 (vs air)
vapor pressure : 166 mm Hg ( 37.7 °C)
refractive index : n20/D 1.501(lit.)
Fp : 12 °F
storage temp. : 0-6°C
solubility : Miscible with alcohol, chloroform, dichloromethane, diethyl ether, acetone and acetic acid.
pka: 43(at 25℃)
form : Liquid
color : APHA: ≤10
Relative polarity: 0.111
explosive limit: 1.4-8.0%(V)
Water Solubility : 0.18 g/100 mL
Merck : 14,1066
BRN : 969212
Stability:: Stable. Substances to be avoided include strong oxidizing agents, sulfuric acid, nitric acid, halogens. Highly flammable.
CAS DataBase Reference: 71-43-2(CAS DataBase Reference)
NIST Chemistry Reference: Benzene(71-43-2)
EPA Substance Registry System: Benzene(71-43-2)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes : F,T
Risk Statements : 45-46-11-36/38-48/23/24/25-65-39/23/24/25-23/24/25
Safety Statements : 53-45-36/37-16-7
RIDADR : UN 1114 3/PG 2
WGK Germany : 3
RTECS : CY1400000
F : 3-10
TSCA : Yes
HazardClass : 3
PackingGroup : II
Hazardous Substances Data: 71-43-2(Hazardous Substances Data)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
H340 May cause genetic defects Germ cell mutagenicity Category 1A, 1B Danger
H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501
H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P311 Call a POISON CENTER or doctor/physician.
P331 Do NOT induce vomiting.
P391 Collect spillage. Hazardous to the aquatic environment
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P307+P311 IF exposed: call a POISON CENTER or doctor/physician.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P235 Store in a well-ventilated place. Keep cool.

Benzene Chemical Properties,Usage,Production

Chemical Properties
colourless liquid
Definition
ChEBI: A six-carbon aromatic annulene in which each carbon atom donates one of its two 2p electrons into a delocalised pi system. A toxic, flammable liquid byproduct of coal distillation, it is used as an industrial solvent. Benzene is a carcinogen that also damages bone marrow and the central nervous system.
General Description
A clear colorless liquid with a petroleum-like odor. Flash point less than 0°F. Less dense than water and slightly soluble in water. Hence floats on water. Vapors are heavier than air.
Air & Water Reactions
Highly flammable. Slightly soluble in water.
Reactivity Profile
Benzene reacts vigorously with allyl chloride or other alkyl halides even at minus 70°C in the presence of ethyl aluminum dichloride or ethyl aluminum sesquichloride. Explosions have been reported [NFPA 491M 1991]. Ignites in contact with powdered chromic anhydride [Mellor 11:235 1946-47]. Incompatible with oxidizing agents such as nitric acid. Mixtures with bromine trifluoride, bromine pentafluoride, iodine pentafluoride, iodine heptafluoride and other interhalogens can ignite upon heating [Bretherick 5th ed. 1995]. Benzene and cyanogen halides yield HCl as a byproduct (Hagedorn, F. H. Gelbke, and Federal Republic of Germany. 2002. Nitriles. In Ullman Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA.). The reaction of Benzene and trichloroacetonitrile evolves toxic chloroform and HCl gasses. (Hagedorn, F., H.-P. Gelbke, and Federal Republic of Germany. 2002. Nitriles. In Ullman Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA.).
Health Hazard
Dizziness, excitation, pallor, followed by flushing, weakness, headache, breathlessness, chest constriction, nausea, and vomiting. Coma and possible death.
Fire Hazard
Behavior in Fire: Vapor is heavier than air and may travel considerable distance to a source of ignition and flash back.
Benzene Preparation Products And Raw materials
Raw materials
Diethylene glycol Platinum COKEOVENGAS Nitrogen Motor benzol heavy benzol Hydrogenated gasoline light benzol DODECYLBENZENE COAL TAR PETROLEUM ETHER COUMARONE RESIN Phenanthrene
Preparation Products
1-AZIRIDINEETHANOL 5-TERT-BUTYL-1H-INDOLE-2-CARBOXYLIC ACID ETHYL ESTER N-NONANOPHENONE tert-Amylbenzene 4-BENZOYLBUTYRIC ACID Isobutyrophenone ETHYL ISONICOTINOYLACETATE 2-Methoxyphenyl isocyanate Acetrizoic acid 3-THIOPHEN-2-YL-BENZALDEHYDE 2-(N-HEPTANOYL)THIOPHENE 2-Chlorophenyl isocyanate BUTYL 3-MERCAPTOPROPIONATE PHENYLMERCURY NITRATE 4-BROMO-7-CHLOROQUINOLINE 2,5-Dimethyl-3-hexyne-2,5-diol 4-Methoxyphenyl isocyanate 2-FLUOROPHENYL ISOCYANATE Benzoylcyclohexane ISOCYANIC ACID Isomerase, glucose Sulfachloropyridazine sodium m-Nitrobenzoyl chloride Pesticide synergist agent 1,3-DIMETHYL-2-(2-THIENYL)IMIDAZOLIDINE 3-BROMOPROPIONITRILE Octyl cyanoacetate PHENYLBORON DICHLORIDE 4-Fluorophenyl isocyanate 4,5-DIMETHYL-2-NITROANILINE 1-Bromo-1-phenyl-2-propanone 2-ACETAMIDO-5-PICOLINE 4-Amino-3-chloropyridine 7-METHOXY-3,4,5,6-TETRAHYDRO-2H-AZEPINE 5-FORMYL-2-THIOPHENECARBOXYLIC ACID 2-PYRAZINECARBONYL CHLORIDE 3-FLUOROPHENYL ISOCYANATE 2-Chloro-6-methylpyrimidin-4-ylamine METHYL 6-(ACETYLAMINO)NICOTINATE
Benzene Suppliers      Global( 198)Suppliers     
Supplier Tel Fax Email Country ProdList Advantage
Shanghai Macklin Biochemical Co.,Ltd. 15221275939
021-51821727 shenlinxing@macklin.cn China 13254 55
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 sale@aladdin-e.com China 25125 65
Shanghai Shinemro Co., Ltd 021-51966008;021-51966007
021-51966008 2157251522@qq.com China 4007 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96831 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40403 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30314 84
TCI (Shanghai) Development Co., Ltd. 800-988-0390
021-67121385 sales@tcishanghai.com.cn China 22833 81
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
86 (10) 60270825 dtftchem@sina.com China 1443 62
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 info@energy-chemical.com China 44197 61
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
+86-10-82967029 sales@ouhechem.com China 10816 60
 
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