甲烷的結構是由一個碳和四個氫原子透過 sp 3 混成 的方式化合而成，而且是所有 烴類 物質中，含碳量最小，且含氫量最大的 碳氫化合物，因此甲烷分子的 分子結構 是一個 正四面體 的結構，碳大約位於該正四面體的 幾何中心，氫位於其四個 頂點，且四個 碳氫鍵 的鍵的鍵角相等、鍵長等長。 標準狀態 下的甲烷是一種無色無味的氣體 [7]。 一些 有機物 在缺 氧 情況下 分解時所產生 的 沼氣 主要成分就是甲烷。

馬拉硫磷 （英語： Malathion）是一種 有機磷 製的 副交感神經 殺蟲劑，會與 膽鹼酯酶 作不可逆的結合，對人類的毒性較低。 在前 蘇聯，本化學品被稱為「carbophos」，在 紐西蘭 和 澳大利亞 稱為「maldison」，而在南非被稱為「mercaptothion」 [3]。 在 香港 屬於 非處方藥劑製品 [4]。 馬拉硫磷揮發性極高，對人畜毒性影響很低，只要放在通風處立刻會降低其毒性。 在製造馬拉松農藥及大量使用時會散佈到環境中。 如果如噴灑過程降落在土壤中，馬拉松會與土壤結合且會 …

Malathion is an organophosphate insecticide which acts as an acetylcholinesterase inhibitor. In the USSR, it was known as carbophos, in New Zealand and Australia as maldison and in South Africa as mercaptothion.

Methane (US: / ˈmɛθeɪn / METH-ayn, UK: / ˈmiːθeɪn / MEE-thayn) is a chemical compound with the chemical formula CH4 (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas.

Malathion is an insecticide in the chemical family known as organophosphates. Products containing malathion are used outdoors to control a wide variety of insects in agricultural settings and around people's homes. Malathion has also been used in public health mosquito control and fruit fly eradication programs.

METHANE翻译：甲烷，沼气。 了解更多。

分析了地层温度、咸化环境和还原环境等因素对阳信洼陷沙一段生物气生成、聚集和保存的控制作用. Can detect hydrogen, oxygen, nitrogen, carbon monoxide, methane, dioxide, ethylene, ethane, acetylene and other gases. 可对氢 、 氧 、 氮 、 一氧化碳 、 甲烷 、 二氧化碳 、 乙烯 、 乙烷 、 乙炔九种气体检测. The cloud might be snowing ethane snowflakes into methane lakes below. 云层可能正在向下面的甲烷湖飘落乙烷雪.

Malathion | C10H19O6PS2 | CID 4004 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

Methane is a colorless odorless gas. It is also known as marsh gas or methyl hydride. It is easily ignited. The vapors are lighter than air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. It is used in making other chemicals and as a constituent of the fuel, natural gas.

Methane is a relatively potent greenhouse gas. The concentration of methane in the Earth’s atmosphere in 1998, expressed as a mole fraction, was 1745 ppb, up from 700 ppb in 1750. By 2008, however, global methane levels, which had stayed mostly flat since 1998, had risen to 1800 ppb. Methane has a molecular weight of 16.04 g mol −1.