Product Identification

Product Name

Mancozeb

Synonyms

Dithane
Manganese ethylenebis(dithiocarbamate) (polymeric) complex with zinc salt
Manganese zinc ethylenebis(dithiocarbamate)
Manzeb

CAS

8018-01-7

Formula

C8H12MnN4S8Zn

Molecular Weight

541.03

RTECS

ZB3200000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector

Beilstein/Gmelin

NA

EC Index Number

006-076-00-1

Physical and Chemical Properties

Appearance

Greyish-yellow powder. Musty odor.

Solubility in water

Insoluble

Melting Point

192

Partition Coefficient

1.33

Usage

Leaf and soil fungicide.

First Aid Measures

Ingestion

Ipecac induced vomiting is not recommended because of the potential for cns depression and seizures. Consider after ingestion of a potentially life-threatening amount of poison if it can be performed soon after ingestion (generally within 1 hour). Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. Intravenous fluids may be useful in restoring extracellular fluid volume following severe vomiting and diarrhea. Oxygen therapy is effective in relieving the distress of antabuse-like reactions rarely associated with exposure to thiram and possibly the mbdt-carb compounds. No specific antidotes are available for poisoning by these compounds. 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 and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.

Eyes

If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Handling and Storage

Storage

Store in a dry, shaded well-ventilated area. Do not allow to become wet or overheated in storage as decomposition, impaired activity, or fire may result. Material is combustible. Do not ignite. Store bagged material only on pallets no more than 3 high.

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

Respiratory failure, requiring ventilatory support, has been reported following ingestions.

Skin

Irritating to skin after repeated or prolonged contact.

Eyes

Moderately irritating.

Ingestion

Nausea, vomiting and diarrhea may occur.

UN (DOT)

2210

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate clothing to prevent any reasonable probability of skin contact. Wear eye protection to prevent any possibility of eye contact.

Respirators

Organic vapor-acid gas canister; available in the cab or cockpit and worn while exiting.

Exposure Effects

Effects may be delayed. High concentrations has caused thyroid effects, tumors and birth defects in test animals.

Exposure limit(s)

TLV (as TWA): ppm; 5 (dust) or 1 (fume) mg/m3; as STEL: 3 mg/m3 (fume) (ACGIH 1994-1995). MAK: ppm; 0.5 mg/m3 (1994).

Poison Class

4

Fire Fighting Measures

Flash Point

138

Autoignition

132

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.

Accidental Release Measures

Small spills/leaks

Wear protective clothing. Wear respirator suitable for dust concentration encountered (As1715 approved or equivalent). Scoop or shovel solid material into a suitable container for recovery or disposal. Keep dust to a minimum. Flush cleaned area with water to a contaminated (chemical) sewer. Remove contaminated clothing promptly and wash affected skin areas with soap and water. Thoroughly launder clothing before reuse. Do not take clothing home to be laundered. Keep spills and cleaning runoffs out of municipal sewers and open bodies of water.

Stability and Reactivity

Stability

Stable under normal, dry storage conditions. Slowly decomposed by heat and moisture.

Incompatibilities

Strong oxidizing agents.

Decomposition

Slowly decomposed by heat and moisture. When heated to decomposition it emits very toxic fumes of sulfoxides, zinc oxide and oxides of nitrogen.

Transport Information

UN Number

2210