Initial heating of the phenol and formaldehyde (in the presence of an acid or base to get the reaction going) produced a shellac-like liquid good for coating surfaces like a varnish.
开始加热，酚和甲醛(需有酸或碱促使其反应进行)便产生了像紫胶样的液体，能像清漆一样涂于物体表面。
Nonylphenols is an important chemical raw materials and intermediates, appearance at normal temperature colorless or light yellow liquid, with phenol odour, insoluble in water.
壬基酚是一种重要的精细化工原料和中间体，外观在常温下为无色或淡黄色液体，略带苯酚气味，不溶于水，。
Carbolic acid( or phenol ):Organic compound, simplest member of the class of phenols. A colourless liquid with a Bland, sweetish odour, it is toxic and caustic.
石炭酸：最简单的酚类有机化合物。为无色液体，芳香味温和并带甜味，而且具有强毒性和强腐蚀性。
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