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amount: ½ð±Ò+2 2012-04-19 10:59:00
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fds329: ½ð±Ò+2, ¸ÐлӦÖú¡£ÐÁ¿àÁËO(¡É_¡É)O 2012-04-19 23:27:40
»¹Ìصؿ´ÁËÏÂά»ù°Ù¿ÆHydrogen£¬ÆäÖÐcombustionÀï½²¡°¡­¡­Hydrogen gas forms explosive mixtures with air if it is 4¨C74% concentrated and with chlorine if it is 5¨C95% concentrated. The mixtures spontaneously explode by spark, heat or sunlight. The hydrogen autoignition temperature, the temperature of spontaneous ignition in air, is 500 ¡ãC (932 ¡ãF).[13]¡­¡­¡±µ«ÊÇÒ²¿´µ½ÓÐÈË˵ˮµÄ´æÔںܹؼü£¬ÍêȫûÓÐË®£¨·ÖѹµÍÓÚijֵ£©»áÔÚ¸ßÎÂÏÂÒ²²»·´Ó¦¡£¡£¡£Õ⣬ÎÒÎÞ·¨½âÊÍÁË¡£¸Ð¾õºÍ»ìºÏ±ÈÀý£¨²»ÊÇ˵´ïµ½¿ÉÒÔ±¬Õ¨µÄ±ÈÀý£©ºÍÒýȼÌõ¼þºÜ¹Ø¼ü
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