水杨酸99%最小值

shuǐ水  yáng杨  suān酸  9  9  %  zuì最  xiǎo小  zhí值  

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产品描述

chǎn产  pǐn品  miáo描  shù述  

CAS No.:69-72-7 Property: Pale pink to pale brown powder, at mospherical sublimating at the temperature over 76°C, easily to decarboxylate and change into phenol and carbon dioxide when heated quickly. Its aqueous solution appears acid reaction,becomes purple with FeCl3. Slightly soluble in water, soluble in boiling water, easily soluble in ethanol or ether. Specifications:

CAS号：69-72-7性质：浅粉色至浅棕色粉末，在76℃以上升华°C、 快速加热时易脱羧并转化为苯酚和二氧化碳。其水溶液出现酸性反应，与三氯化铁呈紫色。微溶于水，溶于沸水，易溶于乙醇或乙醚。

zuì最  dà大  0  .  3  0  %  

Packing: Net each in 25kg plastic woven bag, lined with PE bag. Usage: The product is material of medicine, perfume, dyestuff, pesticide and rubber cure retarder. Chiefly it is used to manufacture the medicine of fever-allaying and analgesic for fever, direct dyestuff, insecticide and absorbent of ultraviolet ray. Storage: Kept in a well closed container and stored in a dry, ventilated place.

包装：每袋净重25公斤，内衬聚乙烯袋。用途：本品是医药、香料、染料、农药、橡胶固化缓凝剂的原料。主要用于制备退热镇痛药、直接染料、杀虫剂、紫外线吸收剂等。储存：保存在密封良好的容器中，并存放在干燥、通风的地方。