3, 3-Thiodipropionic acid di-n-octadecyl ester

• CAS No.: 693-36-7
• Formula: S(CH2CH2COOC18H37)2
• EINECS: 211-750-5
• Certification: CCIC, REACH, FDA, RoHS, JHOSPA, SVHC, EU FOOD CONTACT
• Environmental Protection: Yes
• Color: White
• Model NO.: DSTP
• Kind: Antioxidant
• Appearance: powder or granule
• Melting Range: 63.5-68.5ºC
• Assay: 99% min
• Transport Package: 25KG/bag or carton
• Specification: PS-802
• Trademark: LEPUZ
• Origin: China
• Production Capacity: 20000 Tons/Year

Product Description

 

Antioxidant PS-802

Chemical name: Distearyl thiodipropionate

Other name: DSTDP, DSTP, PS-802, STDP

Chemical formula: S(CH₂CH₂COOC₁₈H₃₇)₂

CAS No.: 693-36-7

Molecular Weight: 683.18

Physical Properties: white crystalline powder or grain; insoluble in water, soluble in benzene and toluene.

Uses: PS-802 is a good auxiliary antioxidant and is widely used in polypropylene, polyethylene, polyvinyl chloride, ABS rubber and lubricating oil. It has high-melting and low-volatility. It can be used in combination with phenolic antioxidants and ultraviolet absorbers to produce synergistic effect.

Quality Specifications:

Appearance	white crystalline powder or grain
Melting point	63.5-68.5ºC
Ash	≤0.05%(wt)
Acid value	≤0.10mgKOH/g
Molten colour	≤60(pt-co)
Saponificating value	160-170mgKOH/g
Heating	≤0.05%(wt)

Packing: 20 or 25kg bag.

Storage: PS-802 should be stored in a cool, dry and ventilated place and be kept away from moisture and heat.

 

 

Main products


Optical brighteners: OB  OB-1  KCB  FP-127  KSN  MDAC(SWN)  CBS-X

Light stabilizers:     622  770  944  292  783

UV absorbers:          UV-531  UV-9(BP-3)  UV-P  UV-326  UV-327  UV-328  UV-329  UV-571  UV-
                                  284(BP-4)   UV-1130

Antioxidants:          1010  168  BHT  1076

Slip agents:               Oleamide  Erucamide

Heat stabilizers:         DBM-83  SBM-50  SBM-55  CA ACAC  Zn ACAC



Our Services

We have exact inventory plans to guarantee stable supply.

We have many years' experience of chemical logistics and dangerous chemical managers with specially trained, which ensure the safety and right of chemicals, timely logistics.

Our laboratory takes strictly testing on every lot of goods according to customers' requirement. Meanwhile we has good relationship with the third party company SGS.

After-sales service is the important part in our service. If there are quality problems, we will actively cooperate with the customers and solve the problems early.

We expect to become good partners with our customers for long.





Company Information 




 

        

FAQ

 

Q: Do you have any certificate for quality?

 A: Yes, we have ISO9001:2008 quality system certificate and REACH.

 

Q: Can you customize products?

A: Yes, we can.

 

Q: Can you provide samples for quality checking before placing an order?

A: Samples are avaliable upon request, but the shipping cost should be paid by customer.

 

Q: How to get the price list?

A: Please inqire us by alibaba/email.

 

Q: What's your payment term?

A: TT/LC/DA/DP/Paypal