Antioxidant H

Antioxidant H
Model:74-31-7
Brand:TANYUN
Origin:Made In China
Category:Chemicals / Chemical Auxiliary & Catalyst / Chemical Auxiliary
Label:Antioxidant H , 74-31-7 , tanyun
Price: US $40 / kg
Min. Order:1 kg

Product Description

Antioxidant H

Executive standard: Q/YTH 001-2011

English another name: 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. Uses: 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 de ng 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. Operation must be installed with rubber gloves, a respirator and eye protection by wearing protective clothing.

5. Package: Woven bag with inner plastic bag, 20 kg net each.

6. Storage: Store at cool, dry and ventilate. Shelf life of 12 months, if expire, still used if up to standard through retest.

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

In additionThe company could research and develop the new products according to the special demand of our clients

Antioxidant H 1Antioxidant H 2Antioxidant H 3Antioxidant H 4Antioxidant H 5

Member Information

YINGKOU TANYUN CHEMICAL RESEARCH INSTITUTE CO.,LTD
Country/Region:Liao Ning - China
Business Nature:Manufacturer
Phone:18938769917
Contact:Kristin Cheng (Manager)
Last Online:29 Oct, 2018

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