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甲醇的密度(甲醇的密度比空氣大還是小)

  • 生活
  • 2023-04-26 12:43

甲醇是最簡(jiǎn)單的飽和脂肪醇,分子式CH3OH,相對(duì)分子質(zhì)量32.04。常溫常壓下,純甲醇是無色透明、易揮發(fā)、可燃,略帶醇香氣味的有毒液體。甲醇可以和水互溶,但不能與脂肪烴類化合物相互溶。甲醇水溶液的密度隨甲醇濃度和溫度的增加而減小;甲醇水溶液的沸點(diǎn)隨液相中甲醇濃度的增加而降低。

甲醇屬劇毒化合物,口服可以引起嚴(yán)重中毒,可以造成失明,致人死亡。誤服時(shí)可用碳酸銨等堿性物質(zhì)解毒,直至尿液呈堿性(PH值=7.5)時(shí)為止。甲醇國家上生標(biāo)準(zhǔn)50mg/m3。

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