精品一区二区三区91_av中文资源在线_全部国产孕妇毛片孕交_女人夹腿高潮视频播放_欧美日韩亚洲视频_国产a∨国片精品白丝美女图片 _国产呻吟久久_免费观看一区二区三区视频_性――交――性――乱_国产乱人内谢69xxxx亚洲

Sublimed Salicylic Acid

CAS#:	69-72-7
Structural formula:
Chemical Name:	O-hydroxybenzoic acid
Other Name:	Salicylic Acid
Physical and Chemical Properties:	White cube and powder, pale pink or light yellow are allowed, atmospherical 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, soluble in ethanol or ether.
Specifications:	Use HG2-303-80 as a standard for judging product. Appearance:White cube or crystalline powder, pale pink are allowed. Content:≥99.0% Melting Point:≥158°C Phenol:≤0.20% Water:≤0.40% Number of Black:≤12 Number of Foreign Matter:≤5
Uses:	The product is a disinfector and antiseptic, also can be used as intermediates of medicine, pesticide, dyestuff, widly used manufacturing aspirin, glyburide, diflunisal, sodium salicylate, optunal, etc.
Packing:	in 25kg woven of polypropylene bag, lined with a polyethylene bag.
Storage:	kept in a well closed container and stored in a dry and ventilated place.