Global Information Lookup Global Information

Bromomethane information


Bromomethane
Stereo, skeletal formula of bromomethane with all explicit hydrogens added
Ball and stick model of bromomethane
Ball and stick model of bromomethane
Spacefill model of bromomethane
Spacefill model of bromomethane
Names
Preferred IUPAC name
Bromomethane[1]
Identifiers
CAS Number
  • 74-83-9 checkY
3D model (JSmol)
  • Interactive image
Beilstein Reference
1209223
ChEBI
  • CHEBI:39275 checkY
ChEMBL
  • ChEMBL48339 checkY
ChemSpider
  • 6083 checkY
ECHA InfoCard 100.000.740 Edit this at Wikidata
EC Number
  • 200-813-2
Gmelin Reference
916
KEGG
  • C18447 checkY
MeSH methyl+bromide
PubChem CID
  • 6323
RTECS number
  • PA4900000
UNII
  • 9V42E1Z7B6
UN number 1062
CompTox Dashboard (EPA)
  • DTXSID8020832 Edit this at Wikidata
InChI
  • InChI=1S/CH3Br/c1-2/h1H3 checkY
    Key: GZUXJHMPEANEGY-UHFFFAOYSA-N checkY
SMILES
  • CBr
Properties
Chemical formula
CH3Br
Molar mass 94.939 g·mol−1
Appearance Colorless gas[2]
Odor Chloroform-like
Density 3.97 kg/m3 (gas, 0 °C)[2]
1.72 g/mL (liquid, 4 °C)[2]
Melting point −93.66 °C (−136.59 °F; 179.49 K)[2]
Boiling point 4.0 °C (39.2 °F; 277.1 K)[2]
Solubility in water
17.5 gL−1[2]
log P 1.3
Vapor pressure 190 kPa (at 20 °C, 68 °F)
Magnetic susceptibility (χ)
−42.8·10−6 cm3·mol−1
Thermochemistry
Std enthalpy of
formation fH298)
−35.1  −33.5 kJ·mol−1
Hazards
GHS labelling:
Pictograms
GHS06: ToxicGHS07: Exclamation markGHS08: Health hazardGHS09: Environmental hazard
Signal word
Danger
Hazard statements
H301, H315, H319, H331, H335, H341, H373, H400, H420
Precautionary statements
P201, P202, P260, P261, P264, P270, P271, P273, P280, P281, P301+P310, P302+P352, P304+P340, P305+P351+P338, P308+P313, P311, P312, P314, P321, P330, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501, P502
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
1
0
Flash point 194 °C (381 °F; 467 K)[2]
Autoignition
temperature
535 °C (995 °F; 808 K)[2]
Explosive limits 10-16%[3]
Lethal dose or concentration (LD, LC):
LC50 (median concentration)
  • 1200 ppm (mouse, 1 hr)
  • 7316 ppm (rabbit, 30 min)
  • 2833 ppm (rat, 1 hr)
  • 302 ppm (rat, 8 hr)
  • 390 ppm (mouse, 9 hr)[4]
LCLo (lowest published)
300 ppm (guinea pig, 9 hr)[4]
NIOSH (US health exposure limits):
PEL (Permissible)
C 20 ppm (80 mg/m3) [skin][3]
REL (Recommended)
Ca[3]
IDLH (Immediate danger)
Ca [250 ppm][3]
Related compounds
Related alkanes
  • Bromoiodomethane
  • Bromoethane
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Bromomethane, commonly known as methyl bromide, is an organobromine compound with formula CH3Br. This colorless, odorless, nonflammable gas is produced both industrially and biologically. It is a recognized ozone-depleting chemical. It was used extensively as a pesticide until being phased out by most countries in the early 2000s.[5] From the chemistry perspective, it is one of the halomethanes.

  1. ^ "methyl bromide - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification. Retrieved 2012-02-26.
  2. ^ a b c d e f g h Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health
  3. ^ a b c d NIOSH Pocket Guide to Chemical Hazards. "#0400". National Institute for Occupational Safety and Health (NIOSH).
  4. ^ a b "Methyl bromide". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  5. ^ Yoffe, David; Frim, Ron; Ukeles, Shmuel D.; Dagani, Michael J.; Barda, Henry J.; Benya, Theodore J.; Sanders, David C. (2013). "Bromine Compounds". Ullmann's Encyclopedia of Industrial Chemistry. pp. 1–31. doi:10.1002/14356007.a04_405.pub2. ISBN 978-3-527-30385-4.

and 30 Related for: Bromomethane information

Request time (Page generated in 0.5643 seconds.)

Bromomethane

Last Update:

Bromomethane, commonly known as methyl bromide, is an organobromine compound with formula CH3Br. This colorless, odorless, nonflammable gas is produced...

Word Count : 2233

Halon

Last Update:

haloalkanes) Halomethane compounds: Halon 10001 (iodomethane) Halon 1001 (bromomethane) Halon 1011 (bromochloromethane, CH2BrCl) Halon 104 (carbon tetrachloride)...

Word Count : 112

Iodomethane

Last Update:

and nearly 1.5 times as much as one mole of bromomethane. On the other hand, chloromethane and bromomethane are gaseous, thus harder to handle, and are...

Word Count : 2516

Halide

Last Update:

(AgCl) Calcium chloride (CaCl2) Chlorine fluoride (ClF) Organohalides Bromomethane (CH3Br) Iodoform (CHI3) Hydrogen chloride (HCl) Hydrogen bromide (HBr)...

Word Count : 415

Infrared spectroscopy

Last Update:

Sample of an IR spec. reading; this one is from bromomethane (CH3Br), showing peaks around 3000, 1300, and 1000 cm−1 (on the horizontal axis)....

Word Count : 5891

Transition state theory

Last Update:

Figure 1: Reaction coordinate diagram for the bimolecular nucleophilic substitution (SN2) reaction between bromomethane and the hydroxide anion...

Word Count : 5817

Reaction rate

Last Update:

Reaction coordinate diagram for the bimolecular nucleophilic substitution (SN2) reaction between bromomethane and the hydroxide anion...

Word Count : 3718

Haloalkane

Last Update:

sources. The oceans are estimated to release 1 to 2 million tons of bromomethane annually. The formal naming of haloalkanes should follow IUPAC nomenclature...

Word Count : 2394

Bromine

Last Update:

estimated to release 1–2 million tons of bromoform and 56,000 tons of bromomethane annually. An old qualitative test for the presence of the alkene functional...

Word Count : 7600

Halogenation

Last Update:

estimated to release 1–2 million tons of bromoform and 56,000 tons of bromomethane annually.[clarification needed] The iodoform reaction, which involves...

Word Count : 1113

Chloromethane

Last Update:

the MAC is the same. Prolonged exposure may have mutagenic effects. bromomethane dichloromethane trichloromethane tetrachloromethane Record in the GESTIS...

Word Count : 1539

Bromopentane

Last Update:

1-bromo-2,2-dimethylpropane, also known as neopentyl bromide. Bromoalkane Bromomethane Bromoethane Bromopropane Bromobutane Bromohexane PubChem. "(2R)-2-bromopentane"...

Word Count : 142

Functional group

Last Update:

bromoalkane bromo RBr R − Br {\displaystyle {\ce {R-Br}}} bromo- alkyl bromide Bromomethane (Methyl bromide) iodoalkane iodo RI R − I {\displaystyle {\ce {R-I}}}...

Word Count : 1192

Vanadium

Last Update:

produces an estimated 1–2 million tons of bromoform and 56,000 tons of bromomethane annually. Most naturally occurring organobromine compounds are produced...

Word Count : 8468

Organobromine chemistry

Last Update:

carbon bonded to bromine. The most pervasive is the naturally produced bromomethane. One prominent application of synthetic organobromine compounds is the...

Word Count : 1557

Soil steam sterilization

Last Update:

soil, potting soil and compost. It is being used as an alternative to bromomethane, whose production and use was curtailed by the Montreal Protocol. "Steam...

Word Count : 2502

Monohalomethane

Last Update:

halomethanes. The four common members are fluoromethane, chloromethane, bromomethane and iodomethane. Historical name for this group is methyl halides; it's...

Word Count : 276

Halomethane

Last Update:

suppression, the halon diffuses, leaving no residue. Chloromethane and bromomethane are used to introduce methyl groups in organic synthesis. Chlorodifluoromethane...

Word Count : 2368

List of gases

Last Update:

−138.9 56 590-18-1 Phosphorus dihydride trifluoride PH2F3 3.9 −52 90 Bromomethane CH3Br 4 −93.66 95 74-83-9 1,2-Dimethyldiborane [(CH3)BH2]2 4 −124.9 56...

Word Count : 4456

List of highly toxic gases

Last Update:

threshold: <0.01 ppm Bromine chloride BrCl 13863-41-7 1500 (TQ) 3 OX Bromomethane CH3Br 74-83-9 250 NIOSH PEL 20 ppm 3 LC50: 302 ppm (Rat, 8 h) Carbon...

Word Count : 584

Atmospheric chemistry

Last Update:

Dichlorodifluoromethane, CCl2F2 530 p41 532.3 Chloromethane, CH3Cl 503 Bromomethane, CH3Br 9–10 p44 7.7 Iodomethane, CH3I 0.36 Carbonyl sulfide, OCS 510...

Word Count : 1839

Von Braun reaction

Last Update:

quaternary ammonium salt, which in the next step reacts by splitting off bromomethane to give the dimethylcyanamide. This is a second-order nucleophilic substitution...

Word Count : 282

Polyquaternium

Last Update:

N,N-(dimethylamino)ethyl ester of methacrylic acid, quaternized with bromomethane Polyquaternium-10 Quaternized hydroxyethyl cellulose Polyquaternium-11...

Word Count : 213

Aminobacter ciceronei

Last Update:

Aminobacter anthyllidis has the ability to degrade Chloromethane and Bromomethane. LPSN lpsn.dsmz.de "Straininfo of Aminobacter ciceronei". Archived from...

Word Count : 125

Bromoethane

Last Update:

established IDLH (Immediate danger) 2000 ppm Related compounds Related alkanes Bromomethane Bromoiodomethane n-Propyl bromide 2-Bromopropane tert-Butyl bromide Except...

Word Count : 358

Smoke

Last Update:

production of hydrogen chloride, phosgene, dioxin, and chloromethane, bromomethane and other halocarbons. Hydrogen fluoride can be formed from fluorocarbons...

Word Count : 6448

Specific replant disease

Last Update:

and cherry trees. Throughout the 1990s, fumigants like methyl bromide (bromomethane) were commonly used in this way to control and treat the disease, through...

Word Count : 724

Zintl phase

Last Update:

can be observed to occur. Organic groups, for example phenyl, TMS, and bromomethane, form exo bonds to the electronegative main group atoms. These ligands...

Word Count : 3711

Sirex woodwasp

Last Update:

free from living sirex larvae. Treatment has also been attempted with bromomethane (CH3Br), through heat, or by removing the bark. New York State Department...

Word Count : 3239

Codeine methylbromide

Last Update:

Codeine methylbromide (Eucodin) is the bromomethane (methylbromide) salt of codeine. Its possession is prohibited in many jurisdictions. It is considered...

Word Count : 239

PDF Search Engine © AllGlobal.net