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O-phenylenediamine CAS:95-54-5, also known as 1,2-diaminobenzene, 1,2-phenylenediamine. Precipitated from the water to white to pale yellow leaf-like crystals, precipitated from chloroform as prismatic crystals. Exposed to the air is easy to change color, from white to yellow, brown, purple, and finally turned black. Relative density of 1.2698. Melting point 103 ~ 104 ℃. The boiling point of 256 ~ 258 ℃. Slightly soluble in cold water (4.15 at 35 ℃), soluble in hot water (733 at 81 ℃), ethanol, ether, chloroform and benzene.
Polyvinylpyrroldione (PVP K30 K90 K15 K17 K60)
We are professional high quality Polyvinylpyrroldione-k (PVP K30 K90 K15 K17 K60) factory suppliers from China, supplying USP EP grade PVP K30 series products. If you need to buy PVP K30 for cosmetic and medical purpose, please feel free to contact us, the main PVP K30 suppliers.
CAS Number 110-15-6, China Succinic Acid suppliers
We can supply good quality Cosmetic materials Succinic acid CAS 110-15-6 from China with competitive price, for cosmetic, food, and feed use. If you need to buy Succinic acid, please feel free to contact us.