UV Absorber 0 CAS NO.131-56-6

chemical name

2,4-dihydroxybenzophenone

formula

c₁₃h₁₀o₃

structure

cas no.

131-56-6

molecular weight

214.2

specifications

appreance

yellowish crystalline powder

purity

≥99%(hplc)

melting point

142-146^oc

ash

≤0.1%

loss on drying

≤0.5%

transmittance

450 nm≥95% 500 nm≥97%

advantage and

application

1. uv-531 is high performance uva which can absorb 280-340nm ultra-violet light.
2. it features light colors, non-toxicity, good compatibility, good process ability and low migration.
3. this product is suitable for pe, pp, ps, as resin, abs resin, pc, pvc, polyvinylidene chloride, polyester and pa.

recommended

dosage

pe

pvc

pp

abs

0.2-0.4 %

0.25-0.5 %

0.5%

0.3-0.5%

package

20/25kg cartons or drums