Bromomethane - Wikipedia
Bromomethane, commonly known as methyl bromide, is an organobromine compound with formula C H 3 Br. 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]
3.4. Isomers | Organic Chemistry 1: An open textbook - Lumen …
In one isomer, both methyl groups are on the same side of the double bond (cis-2-butene) and in the other, the methyl groups are on opposite sides of the double bond (trans-2-butene): The two isomers clearly have the same structural framework but they differ in the arrangement of this framework in space – hence the designation stereoisomers .
6.7: ¹H NMR Spectra and Interpretation (Part II)
2021年12月16日 · In the 1H NMR spectra that we have seen so far, each set of protons generates a single NMR signal. This is not that common for 1HNMR actually. In fact, the 1H NMR spectra of most organic molecules contain signals that are ‘split’ into two or more peaks that is called splitting (or coupling).
溴甲烷 - 百度百科
溴甲烷，又名甲基溴，是一种有机化合物，化学式为CH3Br，主要用作杀虫剂、熏剂、冷冻剂和溶剂，也可用于有机合成。 2017年10月27日，世界卫生组织国际癌症研究机构公布的致癌物清单初步整理参考，溴甲烷在3类致癌物清单中。 [2] 主要用作杀虫剂、熏剂、冷冻剂和溶剂，也可用于有机合成。 吸入389mg/m 3，98次，大鼠肺部从正常到严重肺炎，猴严重抽搐，豚鼠肺部无变化。 微生物致突变：鼠伤寒沙门菌400ppm。 姐妹染色单体交换：人淋巴细胞5mg/L。 微核试验： …
Methyl Bromide | US EPA - U.S. Environmental Protection Agency
2024年11月12日 · Methyl bromide is an odorless, colorless gas used to control a wide variety of pests in agriculture and shipping, including fungi, weeds, insects, nematodes (or roundworms), and rodents. Agricultural growers inject methyl bromide about two feet into the ground to sterilize the soil before crops are planted.
溴甲烷 - 维基百科，自由的百科全书
溴甲烷 是一种 有机化合物，分子式CH 3 Br。 无色气体，通常无臭。 高浓度时有类似 氯仿 的甜气味，有辛辣味。 易溶于 乙醇 、 乙醚 、 氯仿 、 二硫化碳 、 苯 、 四氯化碳。 液态时可与 醇 、 醚 、 酮 等混溶。 在空气中不易燃，但可在氧气中燃烧。 与空气形成爆炸性混合物。 剧毒。 [來源請求] 空气中最高容许浓度 1 ppm。 (美国政府工业卫生学家会议 (ACGIH) 1998年生产环境化学物质阈限值) ,GBZ 2-2002<<工作场所有害因素职业接触限值>>规定溴甲烷（皮）时间加权平均容 …
溴甲烷 - 維基百科，自由的百科全書
溴甲烷 是一種 有機化合物，分子式CH 3 Br。 無色氣體，通常無臭。 高濃度時有類似 氯仿 的甜氣味，有辛辣味。 易溶於 乙醇 、 乙醚 、 氯仿 、 二硫化碳 、 苯 、 四氯化碳。 液態時可與 醇 、 醚 、 酮 等混溶。 在空氣中不易燃，但可在氧氣中燃燒。 與空氣形成爆炸性混合物。 劇毒。 [來源請求] 空氣中最高容許濃度 1 ppm。 (美國政府工業衛生學家會議 (ACGIH) 1998年生產環境化學物質閾限值) ,GBZ 2-2002<<工作場所有害因素職業接觸限值>>規定溴甲烷（皮）時間加權平均容 …
Bromomethane | CH3Br | CID 6323 - PubChem
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.
Methyl bromide | Fumigant, Pesticide, Ozone-Depleting | Britannica
methyl bromide, a colourless, nonflammable, highly toxic gas (readily liquefied) belonging to the family of organic halogen compounds. It is used as a fumigant against insects and rodents in food, tobacco, and nursery stock; smaller amounts are used in …
Methyl bromide technical fact sheet - SafeWork NSW
Methyl Bromide is used as a fumigant to prevent unwanted pests, for example insects, rodents, weeds and disease-causing organisms, in a wide range of agricultural and horticultural crops and in wood products. Methyl Bromide is well absorbed through inhalation and skin contact.