甲胺有廣泛的工業(yè)用途。一甲胺可作醫(yī)藥（激活、咖啡因、麻黃素等）、農(nóng)藥（西維因、樂果、殺蟲脒等）、染料（茜素中間體、蒽醌系中間體等）、炸藥及燃料（水膠炸藥、一甲肼等）、表面活性劑、促進(jìn)劑、以及橡膠助劑、照相化學(xué)品和溶劑等的原料。
在常溫下為無色有氨臭的氣體、或液體。易燃燒，其蒸氣能與空氣形成爆炸性混合物，爆炸極限5%-21%（4.95%-20.75%）。相對(duì)密度0.662，熔點(diǎn)為-93.5℃，沸點(diǎn)為-6.3～-6.7℃，-19.7℃（53.3kPa），-32.4℃（26.7kPa），-43.7℃（13.3kPa），-73.8℃（1.33kPa），分解溫度250℃，閃點(diǎn)（閉杯）0℃，自燃點(diǎn)430℃，蒸氣壓（25℃）202.65Pa，臨界溫度156.9℃，臨界壓力4.073kPa，折射率1.351。液化后發(fā)煙體，比氨具有更強(qiáng)的堿性。易溶于水、乙醇和乙醚。12.5℃時(shí)1體積水能溶解1154體積的甲胺氣體，25℃時(shí)能溶解959體積。在25℃100ml被飽和的苯溶液中含甲胺10.5。溶于醇、醚。一般商品為30-40%水溶液。40%一甲胺水溶液沸點(diǎn)49.4℃，閃點(diǎn)-9.94℃，相對(duì)密度0.904，蒸氣壓（20℃）37.330kPa，粘度（40℃）0.0015Pa·s。
適用范圍
本標(biāo)準(zhǔn)規(guī)定了工業(yè)用甲胺和甲胺水溶液的試驗(yàn)方法。本標(biāo)準(zhǔn)適用于甲醇連續(xù)氣相催化氨化生產(chǎn)的一甲胺、二甲胺、三甲胺及其配制的水溶液的測定。
名稱：甲胺填充柱
型號(hào)：HH-AM
規(guī)格：3m*3mm，60-80目
*高使用溫度：120°C
編號(hào)：20230222001
應(yīng)用：GB/T 30303-2013工業(yè)用甲胺和甲胺水溶液試驗(yàn)方法
Methylamine has a wide range of industrial uses. Monomethylamine can be used as raw materials for pharmaceuticals (activation, caffeine, ephedrine, etc.), pesticides (carbaryl, dimethoate, chlordimeform, etc.), dyes (alizarin intermediates, anthraquinone intermediates, etc.), explosives and fuels (water gel explosives, monomethylhydrazine, etc.), surfactants, accelerators, rubber auxiliaries, photographic chemicals, solvents, etc.
It is colorless gas or liquid with ammonia odor at normal temperature. It is easy to burn, and its vapor can form explosive mixture with air, with explosion limit of 5% - 21% (4.95% - 20.75%). Relative density 0.662, melting point - 93.5 ℃, boiling point - 6.3~- 6.7 ℃, - 19.7 ℃ (53.3 kPa), - 32.4 ℃ (26.7 kPa), - 43.7 ℃ (13.3 kPa), - 73.8 ℃ (1.33 kPa), decomposition temperature 250 ℃, flash point (closed cup) 0 ℃, self-ignition point 430 ℃, vapor pressure (25 ℃) 202.65 Pa, critical temperature 156.9 ℃, critical pressure 4.073 kPa, refractive index 1.351. The smoke body after liquefaction has stronger alkalinity than ammonia. Soluble in water, ethanol and ether. One volume of water can dissolve 1154 volumes of methylamine gas at 12.5 ℃ and 959 volumes at 25 ℃. 100 ml of saturated benzene solution at 25 ℃ contains methylamine 10.5. Soluble in alcohol and ether. Generally, 30-40% aqueous solution is used. The boiling point of 40% monomethylamine aqueous solution is 49.4 ℃, the flash point is -9.94 ℃, the relative density is 0.904, the vapor pressure (20 ℃) is 37.330kPa, and the viscosity (40 ℃) is 0.0015Pa · s.
Scope of application
This standard specifies the test methods of methylamine and methylamine aqueous solution for industrial use. This standard is applicable to the determination of monomethylamine, dimethylamine, trimethylamine and their prepared aqueous solutions produced by continuous gas-phase catalytic ammoniation of methanol.
Name: methylamine filled column
Model: HH-AM
Specification: 3m * 3mm, 60-80 mesh
*High service temperature: 120 ° C
No.: 20230222001
Application: GB/T 30303-2013 Test Method for Methylamine and Methylamine Aqueous Solution for Industrial Use
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