Product Identification

Product Name

2,6-DNPC

Synonyms

2,6-Dinitro-4-methylphenol
2,6-Dinitro-p-cresol
Dinitro-p-cresol
Dnpc
Victoria orange

CAS

609-93-8

Formula

C7H6N2O5

Molecular Weight

198.15

EINECS

210-203-8

RTECS

GO9800000

RTECS Class

Drug; Mutagen

Beilstein/Gmelin

1978786

Beilstein Reference

4-06-00-02152

Physical and Chemical Properties

Appearance

Yellow-orange flakes.

Solubility in water

insoluble

Melting Point

77-79

pKa/pKb

4.23 (pKa)

Partition Coefficient

1.81

Usage

Parent compd for intermediates, dyes and pharmaceuticals.

First Aid Measures

Ingestion

Remove from exposure to fresh air immediately.

Inhalation

Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.

Skin

Wash affected areas of skin and hair vigorously with soap and water. Dermal exposure is usually accompanied by a yellowish discoloration which does not have to be removed completely to prevent absorption.

Eyes

Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

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

Dyspnea, tachypnea, cyanosis, and pulmonary edema may occur.

Skin

Yellow staining of skin occurs following contact with nitrophenols. Diaphoresis is common.

Eyes

Cataracts, secondary glaucoma, symblepharon, paresis of accomodation, and nystagmus have been reported.

Ingestion

Nausea, vomiting, and abdominal pain may be prominent.

Hazards

Contact with metals may evolve flammable hydrogen gas.

UN (DOT)

2811

Exposure Controls/Personal Protection

Personal Protection

NIOSH approved respirator; goggles or face shield; protective clothing; rubber gloves.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Exposure Effects

Blood pressure, pulse, respiratory rate, and temperature may all be elevated after exposure. In severe poisoning, restlessness, seizures, and coma may occur. Animal studies show developmental malformations involving the neurologic, ophthalmic, urologic, and skeletal systems of offsprings.

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Sweep up, then place into a suitable container for disposal.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures. Appear to be stable in acid solution, but are susceptible to decomposition by UV radiation in alkaline solution.

Incompatibilities

Strong oxidizing agents, strong bases, acid chlorides, acid anhydrides.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

2811

Hazard Class

6.1

Packing Group

I; II; III