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Quick Details

  • Classification: Chemical Auxiliary Agent
  • CAS No.: 74-31-7
  • Other Names: Antioxidant H
  • MF: C18H16N2
  • EINECS No.: none
  • Purity: 98%
  • Place of Origin: Liaoning, China (Mainland)
  • Type: Adsorbent
  • Adsorbent Variety: Activated Carbon
  • Usage: antioxidant
  • Brand Name: tanyun
  • Model Number: Q/YTH 001-2006
  • Appearance: Greyish brown powder
  • Application: antioxidant
  • English alias: N, N-diphenyl-p-phenylenediamine
  • English abbreviation: DPPD
  • CAS RN: 74-31-7
  • Molecular formula: C18H16N2
  • Molecular weight: 260.34
  • Specific gravity: 1.2
  • Boiling point: 220-225℃, 0.5mmHg
  • Executive standard: Q/YTH 001-2011

Packaging & Delivery

Packaging Details Woven bag lined with plastic bag, net weight 20 kg/bag.
Delivery Time Shipped in 7 days after payment
Product Description

 

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:

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.

Our Services

  We are able to develop custom-made products according to the clients’ requests.

Company Information

Yingkou Tanyun Chemical Research Institute Co., Ltd

Founded in 1971, Yingkou Tanyun Chemical Research Institute Co., Ltd (Tanyun Chemical for short) is the parent company of Tanyun Technology Group. Currently covering an area of about 12000 square meters, Tanyun Chemical is the first domestic technological platform company of ‘Chemical New Materials Production and Research Incubator’ and the first domestic custom-made research and production company of fine chemicals intermediate research and production company.

Clients

Customization

R&D Center

Tanyun chemicals have four research and development bases, hundreds of synthesis leading experts and PhDs in chemistry. Tanyun chemicals own experienced research & development capability and rich experience in production, and provides you with a variety of organic chemicals, medical intermediates research, development, production, etc. on behalf of a range of high quality customized service.

Tanyun chemicals have developed over twenty kinds of custom chemicals for the customers, and 3 kind products, such as copper chromite dehydrogenation catalyst, have already consigned a usage in batch with customer sign-off. Two invention patents have been applied. 6 kind customized products, such as efficient curing agent, have been applied in pilot trials and pilot production by customers. In addition, more than ten kinds of chemicals have been in R&D, such as nano-waterproof materials, oil additives and fine chemical intermediates.

R&D Bases

Shanghai R&D Base

Shanghai R&D base develops the organic silicon, polyurethane and modified materials of adhesives field as well as fine chemical intermediates products for civilian use.

 

Hangzhou R&D Base

Hangzhou R&D base develop the organosilicon chemistry and materials.

 

Suzhou R&D Base

Suzhou R&D base develop the synthesis and application of fine chemical intermediates products, modified macromolecule materials.

 

Yingkou R&D Base

Yingkou R&D base develop the research and production work for aerospace and defense industry products and fine chemical intermediates products for civilian use. Yingkou achieves fine chemical laboratory to the transformation of the process of industrialization, process improvement and optimization of formula.

 

Patents

 

 

 

FAQ

1.Why  choose us?

We are the manufacturer with more than 40 years history. we can supply one-stop service from sample ,development and research, order, delivery, after-sale service

2.What is ur payment term?

T/T in advance

3.Delivery time?

ASAP after your payment

4.Are u manufacturer?

Yes,we are manufacturer

5.How are  your products?

 We have four word-class R&D bases  and provide you products with high quality and competitive price.

CONTACT US

Yingkou Tanyun Chemical Research Institute Co., Ltd

Skype:Ryan wang

Tel: +86-755-26406100

Fax: +86-755-26407171

Headquarters: No. 75,Xinhu Street,Xishi District, Yingkou,Liaoning, China 11500

Shenzhen Office: Room A308, Building B,West Silicon Valley,Xixiang Street,Bao’an District,Shenzhen,China 518100

 

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