Benzene; Benzol Phenyl hydride Cyclohexatriene Coalnaphtha; Phene (CAS # 71-43-2)

Chemical Property:

Molecular Formula	C6H6
Molar Mass	78.11 ib
Qhov ntom	0.874 g / mL ntawm 25 ° C (lit.)
Melting Point	5.5 ° C (lit.)
Boling Point	80 ° C (lit.)
Flash Point	12 ° F
Dej Solubility	0.18 g / 100 mL
Solubility	Miscible nrog cawv, chloroform, dichloromethane, diethyl ether, acetone thiab acetic acid.
Vapor Siab	166 hli Hg (37.7 ° C)
Vapor Density	2.77 (vs huab cua)
Qhov tshwm sim	Ua kua
Xim	PIB: ≤10
tsw	Xim-thinner-zoo li tsw pom tau ntawm 12 ppm
Exposure Limit	TLV-TWA 10 ppm (～32 mg/m3) (ACGIHand OSHA); qab nthab 25 ppm (～80 mg/m3) (OSHA thiab MSHA); ncov 50 ppm (～160mg / m3) / 10 min / 8 h (OSHA); carcinogenicity: Suspected Human Carcinogen (ACGIH), Tib neeg txaus Ev
Qhov siab tshaj plaws wavelength (λmax)	['λ: 280 nm Amax: 1.0', , 'λ: 290 nm Amax: 0.15', , 'λ: 300 nm Amax: 0.06', ib: 330
Merck	14 Ib., 1066
BRN	969212 ib
pKa	43 (ntawm 25 ℃)
Kev cia khoom	chav kub
Kev ruaj ntseg	ruaj khov. Cov tshuaj yuav tsum tau zam muaj xws li muaj zog oxidizing tus neeg sawv cev, sulfuric acid, nitric acid, halogens. Cov nplaim taws heev.
Explosive txwv	1.4-8.0% (V)
Refractive Index	n20/D 1.501 (lit.)
Physical thiab Chemical Properties	Molecular Luj: 78.11 Melting Point: 5.51 ℃ Kub taw tes: 80.1 ℃ kua ntom ntom (20 ℃): 879.4 / m3 Gas ceev: 2.770/m3 txheeb ze ntom ntom (38 ℃, Cua = 1): 1.4 Kub ntawm gasification (25 ℃): 443.62kJ / kg (80.1 ℃) kub tseem ceeb: 394.02 ℃ Lub siab tseem ceeb: 4898kPa Qhov ceev ceev: 302kg / m3 Lub peev xwm tshwj xeeb kub (gas, 90 ℃, 101.325kPa): 288.94 kJ / kg cp = 1361.96kJ/(kg.K) Cv = 1238.07kJ/(kg.K) (kua, 5 °c): 1628.665kJ / (kg.K) (kua, 20 °c): 1699.841kJ / (kg.K) Kev ntsuas kub tshwj xeeb: (gas, 90 ℃, 101.325kPa): Cp / Cv = 1.10 vapor siab (26.1 ℃): 13.33kPa viscosity (20 ℃): 0.647MPA. s nto nro (sib cuag nrog huab cua, 0 ℃): 31.6mN / m thermal conductivity (12 ℃, kua): 0.13942W / (mK) (0 ° C, kua): 0.0087671W / (mK) refractive index (20 ℃): nD = 14462 flash point: -11 ℃ ignition point: 562.2 ℃ tawg txwv: 1.3% -7.1% Qhov siab tshaj plaws tawg siab: 9kg / cm2 concentration ntawm qhov siab tshaj plaws tawg: 3.9% yooj yim ignitable concentration: 5% combustion kub (kua, 25 ℃): 3269.7KJ/mol toxicity qib: 2 Flammability qib: 3 explosivity theem: 0 benzene yog ib tug tsis muaj kob pob tshab volatile kua nrog aromatic tsw ntawm ib txwm kub thiab siab. Muaj peev xwm tso tawm cov pa phem. Benzene yog ib qho kev sib xyaw uas tsis yooj yim rau decompose. Thaum nws hnov mob nrog lwm yam tshuaj, nws cov qauv hauv paus tsis hloov pauv, tsuas yog hydrogen atom hauv lub nplhaib benzene hloov los ntawm lwm pawg. Lub vapor ntawm benzene tuaj yeem tsim qhov sib xyaw ua ke nrog huab cua. Liquid Benzene yog sib dua li dej, tab sis nws cov vapor hnyav dua li huab cua. Nws yog ib qho yooj yim heev los ua combustion thiab tawg nyob rau hauv lub ntsej muag ntawm high kub los yog qhib hluav taws. Benzene vapor tuaj yeem sib txawv deb, ua tau raws li qhov hluav taws kub ntawm qhov hluav taws kub, thiab cov nplaim taws raws li ntws rov qab. Benzene yog nquag mus rau tiam thiab tsub zuj zuj ntawm static hluav taws xob. Cov tshuaj tiv thaiv ntawm benzene nyob rau hauv kev sib cuag nrog oxidant yog khaus. Benzene yog insoluble hauv dej, tab sis soluble hauv cawv, ether, acetone, chloroform, roj av, carbon disulfide thiab lwm yam organic solvents.
Siv	Cov khoom siv tshuaj lom neeg yooj yim, siv los ua cov kuab tshuaj thiab hluavtaws benzene derivatives, txuj lom, dyes, plastics, pharmaceuticals, explosives, roj hmab, thiab lwm yam.

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Khoom cim npe

Risk Codes	R45 - Tej zaum yuav ua rau mob qog noj ntshav R46 - Tej zaum yuav ua rau muaj kev puas tsuaj ntawm caj ces R11 - Cov nplaim hluav taws kub heev R36/38 - Kab mob rau qhov muag thiab tawv nqaij. R48/23/24/25 - R65 - Ua phem: Tej zaum yuav ua rau lub ntsws puas yog tias nqos R39/23/24/25 - R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos.
Kev nyab xeeb piav qhia	S53 - Tsis txhob raug - tau txais cov lus qhia tshwj xeeb ua ntej siv. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S7 - Khaws lub thawv kaw kom nruj.
UN IDs	UN 1114 3/PG 2
WGK Germany	3
RTECS	CY1400000
FLUKA BRAND F CODE	3-10
TSCA	Yog lawm
HS Code	2902 20 00 Nws
Hazard Class	3
Packing Group	II
Toxicity	LD50 ntawm qhov ncauj hauv cov nas hluas: 3.8 ml / kg (Kimura)

Taw qhia

Benzene yog cov kua tsis muaj xim thiab pob tshab nrog cov ntxhiab tsw tshwj xeeb. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm benzene:

Zoo:

1. Benzene yog volatile thiab flammable, thiab muaj peev xwm tsim ib tug tawg sib tov nrog oxygen nyob rau hauv cov huab cua.

2. Nws yog cov kuab tshuaj organic uas tuaj yeem yaj ntau cov organic teeb meem, tab sis yog insoluble hauv dej.

3. Benzene yog ib tug conjugated aromatic compound nrog ib tug ruaj khov chemical qauv.

4. Cov khoom siv tshuaj lom neeg ntawm benzene yog qhov ruaj khov thiab tsis yooj yim rau kev tawm tsam los ntawm acid lossis alkali.

Siv:

1. Benzene yog dav siv los ua cov khoom siv raw rau kev tsim cov yas, roj hmab, dyes, hluavtaws fibers, thiab lwm yam.

2. Nws yog ib qho tseem ceeb derivative nyob rau hauv petrochemical kev lag luam, siv los tsim phenol, benzoic acid, aniline thiab lwm yam tebchaw.

3. Benzene kuj tseem siv los ua cov kuab tshuaj rau cov organic synthesis tshuaj.

Txoj kev:

1. Nws yog tau raws li ib tug by-product nyob rau hauv lub refining txheej txheem ntawm roj av.

2. Nws yog tau los ntawm lub cev qhuav dej cov tshuaj tiv thaiv ntawm phenol los yog tawg ntawm thee tar.

Cov ntaub ntawv kev nyab xeeb:

1. Benzene yog ib qho tshuaj lom, thiab ntev mus ntev los yog nqus tau cov pa ntau ntawm benzene vapor yuav ua rau muaj kev phom sij loj rau tib neeg lub cev, suav nrog kev mob carcinogenic.

2. Thaum siv benzene, nws yog ib qho tsim nyog yuav tsum ua kom muaj qhov cua zoo kom ntseeg tau tias kev ua haujlwm tau ua tiav hauv qhov chaw tsim nyog.

3. Tsis txhob kov cov tawv nqaij thiab nqus cov pa benzene, thiab hnav cov khoom tiv thaiv tus kheej xws li hnab looj tes tiv thaiv thiab ua pa.

4. Kev noj lossis haus cov tshuaj benzene yuav ua rau muaj tshuaj lom, thiab cov txheej txheem kev nyab xeeb yuav tsum tau ua nruj me ntsis.

5. Cov khib nyiab benzene thiab cov khib nyiab cuam tshuam nrog benzene yuav tsum tau muab pov tseg raws li cov cai thiab cov kev cai tsim nyog kom tsis txhob muaj kuab paug ib puag ncig thiab kev puas tsuaj.

Yav dhau los: Diphenylsiloxane-Dimethylsiloxane Copolymer (CAS # 68083-14-7)

Tom ntej: Biphenyl; Phenylbenzene; Diphenyl (CAS # 92-52-4)

Sau koj cov lus ntawm no thiab xa tuaj rau peb