Mainly produces a series of intermediate products based on naphthalene and benzene

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                    Ultraviolet absorbent UV-9
                    Synonyms Ultraviolet absorbent UV-9
                    CAS NO 131-56-6
                    Structural formula
                    Molecular weight 228.24
                    Molecular Formula C14H12O3

                    Appearance:white or light green crystal powder
                    Melting point: 62.0-65.0 ℃
                    Loss on drying: ≤ 0.2%
                    Content: ≥ 99.0%
                    Heavy metal: ≤ 5ppm
                    Ignition residue: <0.1%
                    Mucedine: <100CFU
                    Total number of bacterium: <300CFU, no checking salmonella and colibacillus
                    Specific absorptivity(288nm): ≥ 630
                    Nontoxicity: no thrill for skin.
                    Packing:paper drum 25kg/ drum
                    Storage: airproof and avoid light
                    Use:it is wide ultraviolet absorbent. It has many features including notoriety, heat stability and others. It has protection function for PVC and unsaturated polyester
                    Valid period:2 years

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