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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