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ブロモメタン

ブロモメタン 化学構造式
74-83-9
CAS番号.
74-83-9
化学名:
ブロモメタン
别名:
ブロモメタン;ブロモメタン (約2mol/Lエチルエーテル溶液);ブロモメタン (約2mol/Lテトラヒドロフラン溶液);ハロン1001;メタブロム;メタフム;臭化メチル;メチルブロミド;エンバフム;メチルブロマイド;ブロムメチル;ブロモメタン (別名 臭化メチル);ブロモメタン (臭化メチル) ;臭化メチル(ブロモメタン);メチルブロミド (約2mol/Lエチルエーテル溶液);メチルブロミド (約2mol/Lテトラヒドロフラン溶液);臭化メチル (約2mol/Lエチルエーテル溶液);臭化メチル (約2mol/Lテトラヒドロフラン溶液);ブロモメタン 溶液
英語化学名:
Methyl bromide
英語别名:
MBX;Edco;Mebr;CH3Br;F40B1;Zytox;r40b1;Rotox;Haltox;R 40B1
CBNumber:
CB9197705
化学式:
CH3Br
分子量:
94.94
MOL File:
74-83-9.mol

ブロモメタン 物理性質

融点 :
−94 °C(lit.)
沸点 :
4 °C(lit.)
比重(密度) :
3.3 g/mL at 25 °C(lit.)
蒸気密度:
3.3 (20 °C, vs air)
蒸気圧:
1420 mm Hg ( 20 °C)
屈折率 :
1.4432
闪点 :
-34 °C
貯蔵温度 :
2-8°C
溶解性:
water: soluble
爆発限界(explosive limit):
~16%
水溶解度 :
1.522 g/100 mL
Merck :
13,6056
暴露限界値:
NIOSH REL: IDLH 250 ppm; OSHA PEL: C 20 ppm; ACGIH TLV: TWA 5 ppm.
安定性::
Stable. Incompatible with oxidizing agents, strong acids. This is an ozone-depleting chemical, and its use is restricted in many countries.
CAS データベース:
74-83-9(CAS DataBase Reference)
NISTの化学物質情報:
Methyl bromide(74-83-9)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  T,N,Xn,F,F+
Rフレーズ  23/25-36/37/38-48/20-50-59-68-38-20/22-11-67-66-19-12-39/23/24/25-23/24/25
Sフレーズ  15-27-36/39-38-45-59-61-36/37-26-24-16-7
RIDADR  UN 1062 2.3
WGK Germany  3
RTECS 番号 PA4900000
国連危険物分類  2.3
有毒物質データの 74-83-9(Hazardous Substances Data)
毒性 LC for rats in air (6 hrs): 514 ppm (Irish)
消防法 危-4-特-I
化審法 (2)-39 優先評価化学物質
安衛法 有機則 第二種有機溶剤等 特化則 特定化学物質(特定第2類) 変異原性物質
PRTR法 第一種指定化学物質
毒劇物取締法 劇物
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H225 引火性の高い液体および蒸気 引火性液体 2 危険 P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H280 加圧ガス;熱すると爆発のおそれ 高圧ガス 高圧ガス
液化ガス
溶解ガス
警告 P410+P403
H315 皮膚刺激 皮膚腐食性/刺激性 2 警告 P264, P280, P302+P352, P321,P332+P313, P362
H319 強い眼刺激 眼に対する重篤な損傷性/眼刺激 性 2A 警告 P264, P280, P305+P351+P338,P337+P313P
H335 呼吸器への刺激のおそれ 特定標的臓器毒性、単回暴露; 気道刺激性 3 警告
H336 眠気やめまいのおそれ 特定標的臓器毒性、単回暴露; 麻酔作用 3 警告 P261, P271, P304+P340, P312,P403+P233, P405, P501
H341 遺伝性疾患のおそれの疑い 生殖細胞変異原性 2 警告 P201,P202, P281, P308+P313, P405,P501
H370 臓器の障害 特定標的臓器有害性、単回暴露 1 危険 P260, P264, P270, P307+P311, P321,P405, P501
H373 長期にわたる、または反復暴露により臓器の障 害のおそれ 特定標的臓器有害性、単回暴露 2 警告 P260, P314, P501
H400 水生生物に強い毒性 水生環境有害性、急性毒性 1 警告 P273, P391, P501
H420 オゾン層を破壊し、健康及び環境に有害 オゾン層への有害性 1 警告 P502
注意書き
P210 熱/火花/裸火/高温のもののような着火源から遠ざ けること。-禁煙。
P261 粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。
P273 環境への放出を避けること。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P281 指定された個人用保護具を使用すること。
P301+P310 飲み込んだ場合:直ちに医師に連絡すること。
P305+P351+P338 眼に入った場合:水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。
P370+P378 火災の場合:消火に...を使用すること。
P403+P235 換気の良い場所で保管すること。涼しいところに 置くこと。

ブロモメタン 価格 もっと(4)

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入
東京化成工業 B1618 ブロモメタン >99.0%(GC)
Bromomethane (in cylinder without valve) [To use this product charged in cylinder, a valve is required which is sold separately (Product Code:V0030)] >99.0%(GC)
74-83-9 50g ¥8700 2018-12-04 購入
東京化成工業 B3121 ブロモメタン (約2mol/Lエチルエーテル溶液)
Bromomethane (ca. 2mol/L in Ethyl Ether)
74-83-9 100mL ¥9400 2018-12-04 購入
Sigma-Aldrich Japan 48624 ブロモメタン 溶液 certified reference material, 200?μg/mL in methanol
Bromomethane solution certified reference material, 200?μg/mL in methanol
74-83-9 48624 ¥16200 2018-12-25 購入
東京化成工業 B3122 ブロモメタン (約2mol/Lテトラヒドロフラン溶液)
Bromomethane (ca. 2mol/L in Tetrahydrofuran)
74-83-9 100mL ¥9400 2018-12-04 購入

ブロモメタン MSDS


Methyl bromide

ブロモメタン 化学特性,用途語,生産方法

用途

防虫、防菌及び防鼠のための土壌等のくん蒸剤、穀物等の農産物のくん蒸、その他多くの医薬品及び化学製品の合成上のメチル化剤として使用。

化学的特性

Methyl bromide (bromomethane) is an odourless, sweetish, colourless gas, incompatible with oxidising agents and strong acids.

化学的特性

Bromomethane is a highly toxic compound and the US EPA has grouped it as a toxicity class I chemical substance. Bromomethane is a colorless gas or volatile liquid that is usually odorless, but has a sweet, chloroform-like odor at high concentrations and is easily miscible with ethanol, ether, aromatic carbon disulfi de, and ketones. It decomposes on heating and, on burning, produces highly toxic and irritating fumes, bromides, carbon oxybromide, carbon dioxide, and monoxide. It is also used as a general purpose fumigant to kill a variety of pests, including rats and insects, and a gas soil fumigant against insects, termites, rodents, weeds, nematodes, and soil-borne diseases. Bromomethane is used for post-harvest fumigation of foods, such as cereals, spices, dried fruits, nuts, fresh fruits, and vegetables. Although bromomethane is on the list of banned ozone-depleting chemical substances of the Montreal Protocol, in 2005 and 2006 it was granted a critical use exemption (under the Montreal Protocol). Bromomethane is an RUP and should be purchased and used only by certifi ed applicators.

化学的特性

Methyl bromide (Bromomethane) is an odorless, sweetish, colorless gas that has been used as a soil fumigant and structural fumigant to control pests across a wide range of agricultural sectors. Methyl bromide is soluble in ethanol, benzene, carbon disulfi de, and sparingly in water. During the 1920s, methyl bromide was used as an industrial fi re extinguishing agent. The current uses of methyl bromide include the fumigation of homes and other structures for the control of termites and other pests. Because methyl bromide depletes the stratospheric ozone layer, the amount produced and imported in the United States was reduced incrementally until it was phased out on January 1, 2005, pursuant to our obligations under the Montreal Protocol on Substances that Deplete the Ozone Layer (Protocol) and the Clean Air Act (CAA).

化学的特性

Methyl bromide is a colorless gas with a chloroform-like odor at high concentrations. A liquid below 3.3C. Shipped as a liquefied compressed gas.

使用

Soil, space and food fumigant; disinfestation of potatoes, tomatoes and other crops.

使用

Methyl bromide is used as a fumigant forpest control, for degreasing wool, and as a methylating agent. Its use as a refrigerant andin fire extinguishers is restrained because ofits health hazards.

使用

Please view www.aldrich.com/epaods regarding the EPA′s request for application information of Ozone Depleting Substances

使用

In ionization chambers. For degreasing wool. Extracting oils from nuts, seeds, flowers. Soil or space fumigant for insects, fungi, rodents. Methylating agent. Has been used as fire extinguishing agent.

定義

ChEBI: A one-carbon compound in which the carbon is attached by single bonds to three bromine atoms and one hydrogen atom. It is produced naturally by marine algae.

一般的な説明

Colorless highly toxic volatile liquid or a gas. Boiling point 3.56°C (38.41°F). Usually odorless, but has a sweetish chloroform-like odor at high concentrations. Used as an insecticide, a rodenticide, a fumigant, a nematocide, a chemical intermediate and as a fire extinguishing agent.

空気と水の反応

Nonflammable over a wide range of concentrations in air. Slightly soluble in water (about 1.75 g/100 mL of solution at 20° C). Reacts slowly with water to give methyl alcohol and hydrobromic acid. [K-O Vol. 4].

反応プロフィール

Methyl bromide is incompatible with metals, dimethyl sulfoxide, ethylene oxide. [Lewis]. Can give flammable products if mixed with potassium hydroxide, sodium hydroxide and other strong bases. Methyl bromide in a steel tank reacted with an aluminum tube (part of the level gauge) producing methyl aluminum bromide. When the latter was subsequently exposed to air, enough heat was produced to ignite the Methyl bromide -compressed air mixture above the liquid layer. The ensuing explosion shattered the tank (also incompatible with zinc, magnesium, and alloys)[Chem. Eng. Pro. 58(8). 1962]. A reaction between Methyl bromide and dimethyl sulfoxide resulted in an explosion that shattered the apparatus [NFPA 491M. 1991].

危険性

Toxic by ingestion, inhalation, and skin absorption; strong irritant to skin and upper respiratory tract. Questionable carcinogen.

健康ハザード

Exposures to bromomethane in high concentrations cause headaches, burns the skin, itching, redness, blisters, dizziness, nausea, vomiting, and weakness. Prolonged periods of exposure cause mental excitement, muscle tremors, seizures, bronchitis and pneumonia, numbness, tremor, speech defects, damage to the nervous system, lung, nasal mucosa, kidney, convulsions, respiratory paralysis, coma, and death. Human exposure to bromomethane is predominantly occupational, during manufacture and occupational fi eld fumigation.

健康ハザード

Exposures to methyl bromide by inhalation cause injury to the brain, nerves, lungs, and throat. At high doses, breathing methyl bromide causes injury to the kidneys and liver. The symptoms of methyl bromide toxicity and poisoning include, but are not limited to, dizziness, headache, abdominal pain, vomiting, weakness, hallucinations, loss of speech, incoordination, labored breathing, and convulsions. Contact with the skin and eyes can lead to irritation and burns. After serious exposures to methyl bromide, occupational workers suffer with lung and/or nervous system-related problems and permanent brain/ nerve damage. Laboratory study with species of animals indicated that bromomethane does not cause birth defects and does not interfere with normal reproduction except at high exposure levels

健康ハザード

Methyl bromide is a dangerous cumulative poison with delayed symptoms of central nervous system intoxication that may appear as long as several months after exposure. High concentrations can produce fatal pulmonary edema. Chronic exposure can cause central nervous system depression and kidney injury. It may cause severe and permanent brain damage. Severe neurological signs may appear when there is a sudden exposure to high concentrations following continuous slight exposure. Methyl bromide has practically no odor or irritating effects and therefore no warning, even at hazardous concentrations.

健康ハザード

The acute poisoning effects from inhalingmethyl bromide are headache, weakness,nausea, vomiting, loss of coordination, visualdisturbance, pulmonary edema, tremor, convulsions, hyperthermia, and coma. Massiveexposure may cause death from respiratoryparalysis. The toxicity of this compound iscomparable to that of methyl chloride. Thelethal concentration in humans has not beenmeasured accurately. The LC50 value in ratsis in the range 300 ppm after an 8-hour expo sure. Chronic exposure can cause injury tothe kidney and depression of the central nervous system.
The liquid, as well as the gas, may beabsorbed through the skin. Contact with theliquid can cause burns. Oral administrationof the liquid caused gastrointestinal tumorsin rats. Its carcinogenicity in humans is notknown.

火災危険

When heated to decomposition, Methyl bromide emits toxic fumes of bromides. Hazardous polymerization may not occur.

农业用途

Fumigant, Herbicide, Insecticide, Nematicide: The primary use of methyl bromide is as an insect fumigant to control insects, nematodes, weeds and pathogens in more than 100 crops and for soil, grain storage, warehouses, mills, ships, etc. Use of methyl bromide in the U.S. will be phased out under the requirements of the Montreal Protocol, with some exemptions. Methyl bromide is also used as a chemical intermediate and a methylating agent, a refrigerant, a herbicide, a fire-extinguishing agent, a low-boiling solvent in aniline dye manufacture, for degreasing wool, for extracting oils from nuts, seeds, and flowers, and in ionization chambers. It is used as an intermediate in the manufacture of many drugs. A U.S. EPA restricted Use Pesticide (RUP), NO INERT. Still actively registered for use in the U.S. (2013). As of March 18, 2005, the use of methyl bromide in the EU was banned for most purposes, including quarantine and pre-shipment fumigations.Registered for use in the U.S.

製品名

BROM-O-GAS®; BROM-OSOL ®; DAWSON® 100; DOWFUME®; EDCO®; EMBAFUME®; HALON 1001®; ISCOBROME®; KAYAFUME®; MATABROM®; METHO-GAS®; M-B-C FUMIGANT®; R 40B1®; ROTOX®; TERABOL®; TERR-O-GAS®; ZYTOX®

安全性プロファイル

Suspected carcinogen with experimental carcinogenic data. A human poison by inhalation. Human systemic effects by inhalation: anorexia, nausea or vomiting. Corrosive to skin; can produce severe burns. Human mutation data reported. A powerful fumigant gas that is one of the most toxic of the common organic hahdes. It is hemotoxic and narcotic with delayed action. The effects are cumulative and damaging to nervous system, hdneys, and lung. Central nervous system effects include blurred vision, mental confusion, numbness, tremors, and speech defects. Methyl bromide is reported to be eight times more toxic on inhalation than ethyl bromide. Moreover, because of its greater volatility, it is a much more frequent cause of poisoning. Death following acute poisoning is usually caused by its irritant effect on the lungs. In chronic poisoning, death is due to injury to the central nervous system. Fatal poisoning has always resulted from exposure to relatively high concentrations of methyl bromide vapors (from 8600 to 60,000 ppm). Nonfatal poisoning has resulted from exposure to concentrations as low as 100-500 ppm. In addtion to injury to the lung and central nervous system, the kidneys may be damaged, with development of albuminuria and, in fatal cases, cloudy swelhng and/or tubular degeneration. The liver may be enlarged. There are no characteristic blood changes. Mixtures of 10-1 5 percent with air may be ignited with difficulty. Moderately explosive when exposed to sparks or flame. Forms explosive mixtures with air within narrow limits at atmospheric pressure, with wider limits at higher pressure. The explosive sensitivity of mixtures with air may be increased by the presence of aluminum, magnesium, zinc, or their alloys. Incompatible with metals, dunethyl sulfoxide, ethylene oxide. To fight fire, use foam, water, CO2, dry chemical. When heated to decomposition it emits toxic fumes of Br-. See also BROMIDES

職業ばく露

Methyl bromide is used in fire extinguishers; as a fumigant in pest control and as a methylation agent in industry as an insect fumigant for soil, grain, warehouses, mills, ships, etc. It is also used as a chemical intermediate and a methylating agent; a refrigerant; a herbicide; a low-boiling solvent in aniline dye manufacture; for degreasing wool; for extracting oils from nuts, seeds, and flowers; and in ionization chambers. It is used as an intermediate in the manufacture of many drugs.

応急処置

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy. If frostbite has occurred, seek medical attention immediately; do NOT rub the affected areas or flush them with water. In order to prevent further tissue damage, do NOT attempt to remove frozen clothing from frostbitten areas. If frostbite has NOT occurred, immediately and thoroughly wash contaminated skin with soap and water

環境運命予測

Photolytic. When methyl bromide and bromine gas (concentration = 3%) was irradiated at 1850 ?, methane was produced (Kobrinsky and Martin, 1968).
Chemical/Physical. Methyl bromide hydrolyzes in water forming methanol and hydrobromic acid. The estimated hydrolysis half-life in water at 25°C and pH 7 is 20 days (Mabey and Mill, 1978). Forms a voluminous crystalline hydrate at 0–5°C (Keith and Walters, 1992).
When methyl bromide was heated to 550°C in the absence of oxygen, methane, hydrogen, bromine, ethyl bromide, anthracene, pyrene and free radicals were produced (Chaigneau et al., 1966).
Emits toxic bromide fumes when heated to decomposition (Lewis, 1990).

貯蔵

Handling and storage of bromomethane cylinders must meet the specifi cations laid down by the regulatory authorities. The cylinders must undergo the required and periodic tests

貯蔵

Methyl bromide (Bromomethane) should be kept stored in sealed containers to keep it from evaporating.

輸送方法

UN1062 Methyl bromide, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, Inhalation Hazard Zone C. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner

純化方法

Purify it by bubbling through conc H2SO4, followed by passage through a tube containing glass beads coated with P2O5. Also purify it by distillation from AlBr3 at -80o, by passage through a tower of KOH pellets and by partial condensation. [Beilstein 1 IV 68.]

不和合性

Attacks aluminum to form spontaneously flammable aluminum trimethyl. Incompatible with strong oxidizers, aluminum, dimethylsulfoxide, ethylene oxide; water. Attacks zinc, magnesium, alkali metals and their alloys. Attacks some rubbers and coatings. Methyl bromide reacts with water to generate hydrobromic acid and methanol but the reaction is so slow that it can be disregarded for most practical purposes.

廃棄物の処理

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. A poisonous gas. Must be handled by experts: the recommended disposal procedure is to spray the gas into the fire box of an incinerator equipped with an afterburner and scrubber (alkali).

予防処置

Occupational workers should use appropriate ventilation during production and formulation of bromomethane at the workplace. The ventilation must be suffi cient to maintain the levels of bromomethane below the prescribed OEL. Local exhaust ventilation at source or vapor extraction may also be used. Gloves or rubber boots should not be used as the liquid or concentrated vapor may be trapped inside them

ブロモメタン 上流と下流の製品情報

原材料

準備製品


ブロモメタン 生産企業

Global( 103)Suppliers
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74-83-9(ブロモメタン)キーワード:


  • 74-83-9
  • (mono)bromomethane
  • 1-Bromomethane
  • bromuredemethyle
  • bromuredemethyle(french)
  • Bromuro di metile
  • bromurodimetile
  • Broommethaan
  • caswellno555
  • Celfume
  • CH3Br
  • Curafume
  • Dawson 100
  • dawson100
  • Detia gas ex-M
  • detiagasex-m
  • Dowfume
  • Dowfume mc-2
  • Dowfume mc-2 soil fumigant
  • Dowfume mc-33
  • dowfumemc-2
  • dowfumemc-2fumigant
  • dowfumemc-2r
  • dowfumemc-2soilfumigant
  • dowfumemc-33
  • drexelplantbedgas
  • Edco
  • epapesticidechemicalcode053201
  • F40B1
  • Fumigant-1
  • fumigant-1(obs.)
  • ブロモメタン
  • ブロモメタン (約2mol/Lエチルエーテル溶液)
  • ブロモメタン (約2mol/Lテトラヒドロフラン溶液)
  • ハロン1001
  • メタブロム
  • メタフム
  • 臭化メチル
  • メチルブロミド
  • エンバフム
  • メチルブロマイド
  • ブロムメチル
  • ブロモメタン (別名 臭化メチル)
  • ブロモメタン (臭化メチル) 
  • 臭化メチル(ブロモメタン)
  • メチルブロミド (約2mol/Lエチルエーテル溶液)
  • メチルブロミド (約2mol/Lテトラヒドロフラン溶液)
  • 臭化メチル (約2mol/Lエチルエーテル溶液)
  • 臭化メチル (約2mol/Lテトラヒドロフラン溶液)
  • ブロモメタン 溶液
  • 構造分類
  • 官能性 & α,ω-二官能性アルカン
  • 研究用小型ガスボンベ
  • 一官能性アルカン
  • 有機合成化学
  • アルキルブロミド
  • ハライド(低沸点)
  • 殺虫剤
  • 殺線虫剤
  • 土壌殺菌剤
  • 燻蒸剤
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