Molecular formula:(c6h5)2nh molecular weight:169.23 Structive formula: Product quality standard: Itemtechnical index 1stgrade Appearancewhite or light brown tabletlight brown tablet Diphenylamine99.5099.00 Freezing pointª52.552.3 Alcohol insoluble substance_0.050.05 Moisture_0.3- Water extact substanceneutralneutral Low boiling point substance_0.5- High boiling point substance_0.5- Aniline_0.2- Properties:white crystal..Turn pale and brown yellow when meet lights.Gravity:1.160(20oc), boilpoint:302ª, little soluble in water, soluble in alcohol, ether, benzene and so on.Can soluble in concentrated inorganic acid solution, but it can separate out if water is put to dilute. Application: the product is mainly used for rubber antioxidant, dyestuff, medical intermediate, lubricating oil antioxidant, and powder stablizer. Package: plastic knitted bags lined with black thin film, weight: 25kg per bag. Package with metal pail, weight:200kg per pail Package can be on basis of the user's requirements. 4: rubber antioxidant ble Liquid bleble-wble-c Ltemtechnical indexltemtechnical indexltemtechnical index Viscosity(30ª) Pa*s2.5-7.0ble effective Content 63.1ble effective Content 33.1 Specific gravity1.08-1.12moisture_4moisture_0.5 Volatility_0.4 Ash content_0.3 Appearancedark brown Thick liquidappearancebrown powderappearancelight brown powder Soluble in acetone, benzol, chloroform and alcohol, little soluble in gasoiline, nonsoluble in water.