潜江ULtraviolet absorbent UV-531

Common Name: UV Absorber UV-531

Chemical name: 2-hydroxy-4-n-octyloxybenzophenone

English name: ultraviolet absorber UV-531

Molecular formula: C21H26O3

Relative molecular weight: 326.64

Appearance: Light yellow or white crystalline powder

Content ≥ 99.0%

Melting point: 48~49 ℃

Loss on drying ≤ 0.5%

Relative density: 1.160 (25 ℃)

Ash content ≤ 0.1%

Solubility: solubility 25 ℃ (g/100g, solvent): acetone 74, benzene 72; Methanol 2; Ethanol (95%) 2.6; N-Heptane 40; N-hexane 40.1

Absorption range: 270~330nm

Application performance: It is a highly efficient ultraviolet absorber with excellent performance, characterized by light color, non-toxic, good compatibility, small migration, and easy processing. It has the greatest protective effect on polymers and helps to reduce color, while delaying yellowing and blocking physical property loss. It is widely used in PE, PVC, PP, PS, PC, organic glass, etc., and provides good photostability for dry phenolic and alkyd varnishes, polyurethane, acrylic acid, epoxy, and other air dried products, as well as automotive finishing coatings, powder coatings, polyurethane, rubber products, etc.

Dosage: generally 0.1%~0.5%

Safety: Non toxic, non corrosive, non flammable, non explosive, stable storage and transportation performance