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Antioxidant ST - 10

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

chemical name:Pentaerythritol ester of tetra-(3, 5-bis - tert-butyl - 4-hydroxyphenyl) propionic acid

molecular weight:1178

  • CAS Number:6683-19-8

molecular formula:C73H108O12

chemical structural formula:


quality standard:

project

target

project

index

Outside view

White crystalline powder

light transmittance

425nm

≥97%

Melting point

110℃~125℃

500nm

≥98%

The ash of

≤0.1%

main content

≥94.0%

volatile matter

≤0.5%

solubleness(2.5g/25mLmethylbenzene)

limpidity

 

Sex to pledge:White powder, odorless and tasteless. The melting point is 110℃-125℃, and the properties are 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 168 and DLTDP, etc., it can exert synergistic effect and improve antioxidant effect.

With the way:This product is a multi - blocked phenolic antioxidant with good compatibility with most polymers. Good protection against discoloration caused by light and heat. 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.

Toxic sex:Toxicity of this product is very low, the lethal dose of LD50≥5000mg in mice (oral administration by male mice)

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

Package is installed:Cartons of 25Kg net each lined with plastic bags.


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