Antioxidant H CAS:74-31-7 best protective for rubber

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Port:
Dalian
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Overview
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:
Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals, 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..

 

 

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