Product Identification

Product Name

4-(Dipropylamino)-3,5-dinitrobenzenesulfonamide

Synonyms

3,5-Dinitro-n4,n4-dipropylsulfanilamide
3,5-Dinitro-n4,n4-dipropylsulphanilamide
4-(Dipropylamino)-3,5-dinitrobenzene sulfonamide
Dirimal
El-119
Surflan

CAS

19044-88-3

Formula

C12H18N4O6S

Molecular Weight

346.36

EINECS

242-777-0

RTECS

WO9350000

RTECS Class

Agricultural Chemical and Pesticide; Mutagen

Merck

12,7015

Beilstein/Gmelin

2177305

Physical and Chemical Properties

Appearance

Yellow-orange crystals.

Melting Point

137-138

Vapor Pressure

.00000001

Density

1.2 g/cm3

pKa/pKb

9.4 (pKa)

Partition Coefficient

3.73 (pH 7)

Usage

Herbicide.

First Aid Measures

Ingestion

Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.

Inhalation

If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.

Skin

Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.

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

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

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

Skin

Animal testing has shown a mild irritant effect. This agent is not caustic.

Exposure Controls/Personal Protection

Personal Protection

Chemical goggles, coveralls, long-sleeved shirt and impermeable gloves.

Respirators

Use NIOSH/MSHA approved respirator appropriate for exposure of concern.

Exposure Effects

Some studies have implicated oryzalin as an agent that might cause heart defects, but the relationship is not well documented.

Poison Class

4

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Fire Potential

Flammable solid technical oryzalin

Accidental Release Measures

Small spills/leaks

Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.

Stability and Reactivity

Stability

Stable under normal storage conditions. Decomposed by UV irradiation. The shelf life of these formulations is more than 2 years.

Incompatibilities

Strong oxidizing agents.