Product Identification

Product Name

Propyzamide

Synonyms

3,5-Dichloro-n-(1,1-dimethyl-2-propynyl)benzamide
3,5-Dichloro-n-(1,1-dimethylpropynyl)benzamide
Clanex
N-(1,1-Dimethylpropynyl)-3,5-dichlorobenzamide
Pronamid
Propyzamide

CAS

23950-58-5

Formula

C12H11Cl2NO

Molecular Weight

256.13

EINECS

245-951-4

RTECS

CV3460000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen

Merck

12,8058

Beilstein/Gmelin

882391

EC Index Number

616-055-00-4

EC Class

Carcinogenic Category 3; Dangerous for the Environment

Physical and Chemical Properties

Appearance

White solid.

Solubility in water

15 mg/L (25 C)

Melting Point

155

Boiling Point

321

Vapor Pressure

8E-5 (25 C)

pKa/pKb

12.30 (pKa)

Partition Coefficient

3.43

Heat Of Vaporization

58.5 kJ/mol

Usage

Selective herbicide that will control many broadleaf & grass weeds preemergence in lettuce and other crops.

First Aid Measures

Ingestion

The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.

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

Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.

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

No special storage problems under normal ambient conditions. In a two-year storage trial under normal conditions, there was no decomposition. Storage at high temperature should be avoided.

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.

Exposure Controls/Personal Protection

Personal Protection

. General percautions: take special care to avoid contact with the eyes, skin, or clothing. Wash clothing and gloves after use. Protective clothing: the following items of clothing are required when mixing or applying pronamide: a) long-sleeved shirts and long pants, preferably one piece (overalls). B) hat with brim. C) heavy duty fabric or rubber work gloves.

Respirators

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

Exposure Effects

The toxicological properties of this material have not been investigated.

Poison Class

-

Fire Fighting Measures

Flash Point

160

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

Flammability not a problem.

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

No decomp in 2-yr storage trial under normal conditions.

Incompatibilities

Strong oxidizing agents.