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Antioxidant ST - 76

Column:Blocked phenolic antioxidants Time:2019-02-12

chemical name::Octadecanol propionate -(3,5- bis - butyl -4- hydroxy phenyl)

molecular weight:530.86

CAS NO.:2082-79-3
molecular formula:C35H62O3

chemical structural formula:


quality standard:

project

 index

project

index

Outside view

White crystalline powder

light transmittance

425nm

≥96%

Melting point

49℃~54℃

500nm

≥98%

The ash of

≤0.1%

main content

≥99.0%

volatile matter

≤0.5%

solubleness(2.5g/25mLmethylbenzene)

limpidity

 

White powder, odorless and tasteless. The melting point is 49℃-54℃, and the property is stable. Soluble in benzene, acetone and ester solvents, insoluble in water, slightly soluble in ethanol. This product has no pollution, good heat and water resistance, good compatibility. Combined with antioxidant st-168 and DLTDP, it can exert synergistic effect and improve antioxidant effect.

This product is a highly effective hindered phenolic antioxidant with good compatibility with most polymers. It can prevent the discoloration caused by light and heat and stabilize the light. Widely used in PE, PP, PS, polyamide, polyformaldehyde, ABS resin, PVC, synthetic rubber and other polymer materials. It is also used to prevent the thermal and oxygen aging of grease and coatings.

Toxicity of this product is very low, the lethal dose of LD50≥10000mg in mice (oral administration by male mice)

The chemical properties of this product are stable, no special storage requirements, should be moisture-proof, heat insulation.

Cartons of 25Kg net each lined with plastic bags.