Antioxidant H for rubber(74-31-7)

Antioxidant H for rubber(74-31-7)


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Place of Origin
China
Brand name
Tanyun
Payment Terms
Negotiable
Production method
Negotiable
Shipping / Lead Time
Negotiable / Negotiable
Keyword
rubber, high quality 74-31-7, dppd, antioxidant h
Category
Catalyst & Chemical Auxiliaries
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Yingkou Tanyun Chemical Research Institute Co.,ltd

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PRO
Country / Year Established
China China / 1971
Business type
Manufacturer
Verified Certificate

7

Product name Antioxidant H for rubber(74-31-7) Certification -
Category Catalyst & Chemical Auxiliaries Ingredients -
Keyword rubber , high quality 74-31-7 , dppd , antioxidant h Unit Size -
Brand name Tanyun Unit Weigh -
origin China Stock -
Supply type - HS code -

Product Information

 

Antioxidant H

Executive standard: Q/YTH 001-2011

English alias: N, N-diphenyl-p-phenylenediamine

English abbreviation: DPPD

CAS RN: 74-31-7

1. Physical and chemical properties:

1.1 Molecular formula: C18H16N2

1.2 Molecular weight: 260.34

1.3 Structure formula:

Structure formula

1.4 Specific gravity: 1.2

1.5 Solubility: Dissolve in benzene, toluene, ether and acetone. Dissolve slightly in ethanol. Insoluble in water.

1.6 Boiling point: 220-225℃, 0.5mmHg

1.7 Stability and reactivity: Flammable. When it’s exposed to air or sunlight, the product will be oxidized and change its color. When contacted with hot dilute hydrochloric acid, it becomes green.

2. Technical indexes:

Item

Index

Refined

1stgrade

2ndgrade

Initial melting point,℃

≥140.0

≥135.0

≥125.0

Ash content ,%(m/m)

≤0.40

≤0.40

≤0.40

Decrement by heating ,%(m/m)

≤0.40

≤0.40

≤0.40

Remainder through sieving (100 mesh),% (m/m)

≤1.0

≤1.0

≤1.0

Appearance

Greyish brown powder

3. Application: It can be used as the antioxidant in solid propellant to improve the storage stability of the product. It has been used for those natural, styrene-butadiene, acrylonitrile-butadiene, butadiene, butyl, hydroxyl, polyisoprene rubber to possess performance such as good flex life and crazing for enhancing the tensile modulus, strengthening the defending function to hot-oxygen , ozone and some harmful metals such as copper, manganese with not influence on vulcanization of those rubbers. It can resolve aging problem existing in the deep-color rubber products while antioxidant H is used together with antioxidant D. Moreover, it can be also used as the hot-oxygen stabilizer for those engineering plastics such as polyethylene, polypropylene, polyamide, polyformaldehyde and etc to improve their climate-resisting performance. The reference dosage is 0.2-0.3%.

 

4. Safety instructions: Toxic. Rubber gloves, respirator and eye protection must be used during operations in case of skin contact, eyes contact..

Packaging & Shipping

5. Packing: Woven bag lined with plastic bag, net weight 20 kg/bag.

6. Storage: Stored in a cool, ventilated place. The shelf life is 12 months after manufacturer date. It is still available if retest result is qualified after expire date

7. Transportation: Avoid rain, exposure, high temperature.

 

Product Info Attached File

antioxidant.jpg

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Yingkou Tanyun Chemical Research Institute Co.,ltd

Country / Year Established
China China / 1971
Membership
PRO
Business type
Manufacturer

7

President
Lv Debin
Address
No. 75,Xinhu Street,Xishi District, Yingkou,Liaoning, China 115004
Product Category
Catalyst & Chemical Auxiliaries,Other Chemicals,Pharmaceuticals
Year Established
1971
No. of Total Employees
1001-2000
Company introduction
<p>

Tanyun chemical is a leading manufacture of fine chemicals for 46 years.

With five R&D base and experts and professional teams, we have strong technology offering customization service tailored to clients’ requests.

The products have been widely applied in areas including aviation, aerospace, military industry, civil industry and been sold to over 20 countries and areas, gaining wide recognition home and abroad.

 

Main Markets

China China

Germany Germany

Iran Iran

South Korea South Korea

U.S.A U.S.A

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