needle-density 中文意思是什麼
needle-density
解釋
針入密度-
Maleic anhydride is a white needle - like, briquette or flaky crystalline with irritant odour and sour, inflammable and sublimating. it can be freely dissolved in water to form maleic acid. it has a specific density of 1. 480, a melting point of 52. 85
順酐(又稱馬來酸酐)為無色針狀或片狀結晶,有刺激性氣味與酸味,易燃,升華,易溶於水生成順丁烯二酸,相對密度為1
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