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light stabilizer 531

  post date: dec 08,2021
  expiry date: jun 06,2022
  detailed description:

specs:yellowish crystalline powder

property : ①yellowish crystals;
②yellowish fine powder
freely soluble in benzene, n-hexane, acetone, slightly soluble in ethanol, very slightly soluble in ethane dichloride.

specification
content:≥99 %
melting point: 47~49 °c
ash: ≤0.1 %
light transmittance: (450nm)≥90%
(500nm)≥95%

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