Methane 甲烷,
CAS 74-82-8 MFCD00008279
化学结构图
SMILES: C
化学属性
| Mol. Formula | CH4 |
|---|---|
| Mol. Weight | 16.04 |
| Boiling Point | -161 °C(lit.) |
| Density | 0.716 g/mL at 25 °C(lit.) |
| Melting Point | -183 °C(lit.) |
| Autoignition Point | 998 °F |
| Vapor Density | 0.55 (vs air) |
| TSCA | U |
| Flash Point | -188 ºC |
| Solubility | 微溶于水，溶于醇、乙醚。 |
别名和识别编码
| Chemical Name | 99.97% Methane, 99.97% |
|---|---|
| CAS Number | 74-82-8 |
| PubChem Substance ID | 297 |
| EC Number | 200-812-7 |
| Beilstein Registry Number | 1718732 |
| MDL Number | MFCD00008279 |
| Synonym | {uni_hamburg} firedamp 甲烷, 99.995% carbane Methyl hydride 甲基氢化物 Methane CH4 Methan EXPLOSIMETRY STANDARD EX-1 methane liquefied CH4 (methane) R 50 (refrigerant) methane in gaseous state methanegas 沼气 R-50 methane,refrigeratedliquid(cryogenicliquid) methane SPECIFIC BTU METHANE STANDARD 液化甲烷 METHANE, 99.998+%, ELECTRONIC GRADE methylhydride METHANE, 99.0+% 沼氣 Methangas r50(refrigerant) Fire Damp 沼气,甲烷,碳化氢 NATURAL GAS Marsh gas Fire damp 天然气 methane,compressed METHANE-12C, 13C-DEPLETED, 99.9 ATOM % 12C 甲烷,沼气 R 50 GAS MIX PURE METHANE 1X14L SCOTTY 14 甲烷 Biogas methane in gaseus state |
| Merck Number | 14,5952 |
| Chemical Name Translation | 甲烷, |
| Wiswesser Line Notation | 1H |
| InChI | InChI=1S/CH4/h1H4 |
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分类
- {SNA} CVD and ALD Precursors by Metal, Chemical Synthesis, Gases, Micro/NanoElectronics, Specialty Gases, Synthetic Reagents, Vapor Deposition Precursors, 材料科学
- Analytical Standards, Analytical/Chromatography, Chromatography, Fluka Brand, Gas Calibration Standards, Pure Gases
- {uni_hamburg} no charge; 1fragment
- {SA} Chemical Synthesis, Specialty Gases, Synthetic Reagents
- {SNA} Chemical Synthesis, Specialty Gases, Synthetic Reagents
相关文献及参考
- Merck 14 ,5952
- Beil. 1 ,IV,3
- Corp MSDS 1 (2), 2228:C / FT-IR 2 (1), 2:A / RegBook 1 (1), 3:A / Sax 6 , 1762 / Structure Index 1 , 1:A:1 / Vapor Phase 3 , 1:A
- Short: II/14a Title: Molecular Constants: Diamagnetic Molecules Author: Demaison, J.; Dubrulle, A.; Hüttner, W.; Tiemann, E. Editor: Hellwege, K.-H.; Hellwege, A.M. Source: Landolt-Börnstein, New Series Volume: II/14a Page: 1-788 Year: 1982 Keyword: organic compounds; molecular constants; spectroscopy; microwave spectroscopy ISBN: 3-540-11365-7 ISBN: 978-3-540-11365-2 Internet Resource: DOI:10.1007/b19966 RefComment: 196 figs., XI
- Short: II/19a Title: Molecular Constants: Rotational, l-type, Centrifugal Distortion and Related Constants of Diamagnetic Diatomic, Linear, and Symmetric Top Molecules Author: Demaison, J.; Hüttner, W.; Tiemann, E.; Wlodarczak, G. Editor: Hüttner, W. Source: Landolt-Börnstein, New Series Volume: II/19a Year: 1992 Keyword: organic compounds; molecular constants; spectroscopy; microwave spectroscopy ISBN: 3-540-54409-7 ISBN: 978-3-540-54409-8 Internet Resource: DOI:10.1007/b42304 RefComment: XI, 143 pages. Abstract: Volume II/19 Molecular Constants mostly from Microwave, Molecular Beam and Sub-Doppler Laser Spectroscopy is a supplement to the earlier volumes II/4, II/6, and II/14. The slight change in the title reflects current trends in the applications of spectroscopic methods. Together, the four volumes collect all the critically evaluated data published up to 1989/90 on constants of free molecules obtained by classical and modern spectroscopy. Volume II/19 is divided into four parts to record the growing number of investigations, especially in the microwave and millimeter wave regions, where modern techniques like Fourier Transform Microwave Spectroscopy have made new objects of interest such as molecular complexes and clusters accessible to study. Subvolume II/19a contains a ge
安全信息
GHS Symbol
- H220 Extremely flammable gas 极易燃气体。
- H280 Contains gas under pressure; may explode if heated 内含高压气体，遇热可能爆炸。
- P410+P403
- P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 远离热源/火花/明火/热的表面。——禁止吸烟。
- P381 Eliminate all ignition sources if safe to do so. 如果安全的话，消除所有点火源。
- P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely. 漏气着火：切勿灭火，除非漏气能够被安全地制止。
- S9 Keep container in a well-ventilated place 保持容器在通风良好的场所；
- S33 Take precautionary measures against static discharges 对静电采取预防措施；
- S16 Keep away from sources of ignition - No smoking 远离火源，禁止吸烟；
- R12 Extremely flammable 极端易燃
其他信息
- 外观性质:无色无臭气体。
- MSDS 信息:甲烷(74-82-8).msds
- 毒性分级:中毒
- 图谱信息:甲烷(74-82-8)核磁图( 1 HNMR)
- MOL 文件:74-82-8.mol
- 储运特性:库房通风低温干燥; 与氧化剂分开存放
- 用途二:有干气和湿气之分，干气可用作燃料或用于生产合成氨、炭黑、甲醇等；湿气可作裂解原料，制取乙烯、丙烯等
- 蒸气密度:0.55 (vs air)
- 甲烷价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2010/05/25 20919 甲烷, 99.995% Methane, 99.995% 300L 8680元 2010/05/25 20919 甲烷, 99.995% Methane, 99.995% 25L 5404元 2010/05/25 20919 甲烷, 99.995% Methane, 99.995% 200L 8246元
- 可燃性危险特性:易燃; 火场排放辛辣刺激烟雾; 有窒息性
- 急性毒性:吸入-小鼠 LC50: 50000 ppm/2小时
- Alfa Aesar:甲烷,99.995% Methane, 99.995%(74-82-8)
- 类别:有害气体
- Sigma Aldrich:74-82-8(sigmaaldrich)
- F:4.5-31
- 职业标准:TWA 6700 毫克/立方米
- 灭火剂:雾状水、二氧化碳、泡沫
- 方法一:该品为最简单的有机化合物，在自然界中分布很广，是天然气、煤层气、沼气的主要成分，经分离可以取得。1.从天然气分离 天然气中含甲烷80%-99%，干天然气经清净后使用；湿天然气经清净后，用冷凝法、吸收法、吸附法分离出乙烷以上轻烃后使用。2.从油田气分离 石油开采时从油井中逸出天然气，其中干气含甲烷80%-85%；湿气含甲烷10%。在加压和冷凝的情况下，可以液化用作化工原料。3.从炼厂气分离 各炼厂石油加工气体中含甲烷20%-50%。用吸收蒸馏法和冷凝蒸馏法从石油加工气体中分离乙烯、丙烯时可副产甲烷、氢或纯甲烷。4.从焦炉气分离 焦炉气含甲烷约20%-30%，干馏煤气含甲烷约40%-60%。采用深冷法分离焦炉气制氢时副产甲烷。
- 下游产品:甲醇 --> 二氯甲烷 --> 氨 --> 四氯化碳 --> 乙酰乙酸乙酯 --> 氯乙酰氯 --> 依达拉奉 --> 乙酰乙酸甲酯 --> N-乙酰乙酰苯胺 --> alpa-乙酰基-gama-丁酯 --> 邻甲氧基-N-乙酰乙酰苯胺 --> 4-氯乙酰乙酸乙酯 --> 乙酰乙酸叔丁酯 --> 2'-氯-N-乙酰乙酰苯胺 --> 乙酰乙酸异丁酯 --> N-甲基乙酰基乙酰胺
- 用途一:主要用于转化制氢、合成氨、甲醇和有机合成的原料气，还用于生产卤代甲烷、硝基甲烷、炭黑、二硫化碳等
- 爆炸物危险特性:与空气混合易爆
- 用途三:甲烷是重要的燃料和重要的化工原料。以甲烷为主要成分的天然气，作为优质气体燃料，已有悠久的历史，其热值为882.0kJ/mol。天然气被大规模开采利用，成为世界第三能源。液化天然气的热值比航空煤油15%，用于汽车、海上快艇和超音速飞机，不但能担高速度。而且可节省燃料。除作燃料外，大量用于合成氨、尿素和炭黑，还可用于生产甲醇、氢、乙炔、乙烯、甲醛、二硫化碳、硝基甲烷、氢氰酸和1,4-丁二醇等。甲烷氯化可得二、二、三氯甲烷及四氯化碳。
- 上游原料:乙酸 --> 丙酮 --> 乙酸丁酯 --> 磷酸三乙酯 --> 煤气
