Product Identification

Product Name

N-2-Propyl-N'-phenyl-p-phenylenediamine

Synonyms

4-(Isopropylamino)diphenylamine
Antioxidant IP
Cyzone
N-(1-Methylethyl)-N-phenyl-1,4-benzenediamine
N-Isopropyl-N'-Phenyl-p-phenylenediamine
Santoflex IP

CAS

101-72-4

Formula

C15H18N2

Molecular Weight

226.35

EINECS

202-969-7

RTECS

ST2650000

RTECS Class

Primary Irritant

Beilstein/Gmelin

2213195

Beilstein Reference

4-13-00-00115

EC Index Number

612-136-00-3

EC Class

Harmful; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Dark gray to black flakes or brown-black small chip-like solid with an aromatic odor.

Solubility in water

Insoluble

Melting Point

79

Boiling Point

378

Vapor Pressure

0.00343 (25 C)

Density

1.04 g/cm3 (20 C)

pKa/pKb

7.24 (pKb)

Partition Coefficient

2.83

Heat Of Vaporization

62.6 kJ/mol

Usage

Protection of rubbers against oxidation, ozone, flexcracking, and poisoning by copper and manganese.

First Aid Measures

Ingestion

DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.

Inhalation

IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.

Skin

IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

Eyes

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Handling and Storage

Storage

Store in a cool, dry location. Keep away from heated pipes, ducts and direct sunlight.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation

Bronchospasm may develop in sensitized individuals.

Skin

Contact dermatitis is common.

Eyes

Significant laryngeal and facial edema may occur. Breathing may be impaired as a result of laryngeal edema. Immediate (usually) or delayed hypersensitivity reactions have been described following application of PPD-containing hair dyes to eyebrows or eyelashes. Eye pain and burning, and edema occur, which may progress to widespread facial edema, dermatitis, tearing, photophobia, uveitis, and keratitis. Corneal necrosis and vision loss may occur. Bilateral optic neuritis has been reported with blindness.

Ingestion

Epigastric pain and recurrent vomiting are common shortly following ingestion.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

UN (DOT)

1673

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.

Exposure Effects

Abnormally low blood pressure and labored respirations may occur. CNS depression and peripheral neuropathy have been reported after ingestion.

Exposure limit(s)

OEL-RUSSIA: STEL 2 mg/m3

Poison Class

4

Fire Fighting Measures

Flash Point

230

Fire Fighting

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. A water spray may also be used.

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

If a spill of this chemical occurs, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with acetone and transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Stability and Reactivity

Incompatibilities

Reacts with oxidizing agents Incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides.

Stability

Stable.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

1673

Hazard Class

6.1

Packing Group

III