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Chemical Datasheet
METOLCARB |
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Chemical Identifiers
CAS Number |
UN/NA Number |
DOT Hazard Label |
USCG CHRIS Code |
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none
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NIOSH Pocket Guide |
International Chem Safety Card |
none
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none
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NFPA 704
data unavailable
General Description
Colorless crystalline solid. Metolcarb is an insecticide for the control of rice leafhoppers, planthoppers, codling moth, citrus mealybug, onion thrips, fruit flies, bollworms and aphids. Not registered as a pesticide in the U.S. (EPA, 1998)
Hazards
Reactivity Alerts
none
Air & Water Reactions
Soluble in water.
Fire Hazard
As for other solid carbamate pesticides, container may explode in heat of fire. Fire and runoff from fire control water may produce irritating or poisonous gases. Emits toxic fumes of nitrogen oxides when heated to decomposition. Avoid decomposing heat. (EPA, 1998)
Health Hazard
High oral and skin toxicity, and moderate inhalation toxicity. (Non-Specific -- Carbamates) Some carbamates appear to be carcinogenic, teratogenic, and/or mutagenic. Carbamates are cholinesterase inhibitors. (EPA, 1998)
Reactivity Profile
METOLCARB is a carbamate ester. Carbamates are chemically similar to, but more reactive than amides. Like amides they form polymers such as polyurethane resins. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Flammable gaseous hydrogen is produced by the combination of active metals or nitrides with carbamates. Strongly oxidizing acids, peroxides, and hydroperoxides are incompatible with carbamates.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents
No information available.
Response Recommendations
Isolation and Evacuation
Excerpt from 151
[Substances - Toxic (Non-Combustible)]:
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.
FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2020)
Firefighting
Procedures for carbamate pesticides, solid, include the following. Stay upwind and keep out of low areas. Wear positive pressure breathing apparatus and special protective clothing. Move container from fire area if you can do it without risk. Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material.
Metolcarb is a carbamate insecticide.
Solid carbamate pesticides may burn but do not ignite readily. For small fires, use dry chemical, carbon dioxide, water spray, and foam. For large fires, use water spray, fog or foam. Dike fire control water for later disposal. (EPA, 1998)
Non-Fire Response
Avoid inhalation. For solid carbamate pesticides, use the following procedures. For small spills, take up with sand or other noncombustible absorbent material and place in containers for later disposal. For small dry spills, with clean shovel place material into clean, dry container and cover; move container from spill area. For large spills, dike far ahead of spill for later disposal. Do not touch spilled material. Use water spray to reduce vapors. (EPA, 1998)
Protective Clothing
For emergency situations, wear a positive pressure, pressure-demand, full facepiece self-contained breathing apparatus (SCBA) or pressure- demand supplied air respirator with escape SCBA and a fully-encapsulating, chemical resistant suit. (EPA, 1998)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
Note: Metolcarb is a cholinesterase inhibitor.
Signs and Symptoms of Metolcarb Exposure: Acute exposure to metolcarb usually leads to a cholinergic crisis, with signs and symptoms that may include increased salivation, profuse sweating, lacrimation (tearing), runny nose and spontaneous defecation and urination. Pinpoint pupils, blurred vision, headache, tremor, muscle twitching, tightness in chest, malaise, mental confusion, convulsions, and coma may also occur. Gastrointestinal effects include nausea, vomiting, diarrhea, and abdominal pain. Bradycardia (slow heart rate) occurs frequently. Pulmonary edema, dyspnea (shortness of breath), respiratory depression, or respiratory arrest may also occur.
Emergency Life-Support Procedures: Acute exposure to metolcarb may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination.
Inhalation Exposure:
1. Move victims to fresh air. Emergency personnel should avoid self-exposure to metolcarb.
2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer 100% humidified oxygen or other respiratory support.
3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
4. Transport to a health care facility.
Dermal/Eye Exposure:
1. Remove victims from exposure. Emergency personnel should avoid self-exposure to metolcarb.
2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer 100% humidified oxygen or other respiratory support.
3. Remove contaminated clothing as soon as possible.
4. If eye exposure has occurred, eyes must be flushed with lukewarm water for at least 15 minutes.
5. Wash exposed skin areas twice with soap and water.
6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
7. Transport to a health care facility.
Ingestion Exposure:
1. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer 100% humidified oxygen or other respiratory support.
2. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
3. Vomiting may be induced with syrup of Ipecac. If elapsed time since ingestion of metolcarb is unknown of suspected to be greater than 30 minutes, do not induce vomiting and proceed to Step
4. Ipecac should not be administered to children under 6 months of age.Warning: Ingestion of metolcarb may result in sudden onset of seizures or loss of consciousness. Syrup of Ipecac should be administered only if victims are alert, have an active gag-reflex, and show no signs of impending seizure or coma. If ANY uncertainty exists, proceed to Step
4.The following dosages of Ipecac are recommended: children up to 1 year old, 10 mL (1/3 oz); children 1 to 12 years old, 15 mL (1/2 oz); adults, 30 mL (1 oz). Ambulate (walk) the victims and give large quantities of water. If vomiting has not occurred after 15 minutes, Ipecac may be readministered. Continue to ambulate and give water to the victims. If vomiting has not occurred within 15 minutes after second administration of Ipecac, administer activated charcoal.
4. Activated charcoal may be administered if victims are conscious and alert. Use 15 to 30 g (1/2 to 1 oz) for children, 50 to 100 g (1-3/4 to 3-1/2 oz) for adults, with 125 to 250 mL (1/2 to 1 cup) of water.
5. Promote excretion by administering a saline cathartic or sorbitol to conscious and alert victims. Children require 15 to 30 g (1/2 to 1 oz) of cathartic; 50 to 100 g (1-3/4 to 3-1/2 oz) is recommended for adults.
6. Transport to a health care facility. (EPA, 1998)
Physical Properties
Flash Point: data unavailable
Lower Explosive Limit (LEL):
Not flammable.
(EPA, 1998)
Upper Explosive Limit (UEL):
Not flammable.
(EPA, 1998)
Autoignition Temperature: data unavailable
Melting Point:
169 to 171°F
(EPA, 1998)
Vapor Pressure:
1e-05 mmHg
at 77°F
(EPA, 1998)
Vapor Density (Relative to Air): data unavailable
Specific Gravity: data unavailable
Boiling Point: data unavailable
Molecular Weight:
165.21
(EPA, 1998)
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH: data unavailable
AEGLs (Acute Exposure Guideline Levels)
No AEGL information available.
ERPGs (Emergency Response Planning Guidelines)
No ERPG information available.
PACs (Protective Action Criteria)
Chemical |
PAC-1 |
PAC-2 |
PAC-3 |
Metolcarb; (Methylcarbamic acid m-tolyl ester) (1129-41-5)
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0.44 mg/m3 |
4.8 mg/m3 |
21 mg/m3 |
(DOE, 2018)
Regulatory Information
EPA Consolidated List of Lists
Regulatory Name |
CAS Number/ 313 Category Code |
EPCRA 302 EHS TPQ |
EPCRA 304 EHS RQ |
CERCLA RQ |
EPCRA 313 TRI |
RCRA Code |
CAA 112(r) RMP TQ |
Metolcarb |
1129-41-5 |
100/10000 pounds |
1000 pounds |
1000 pounds |
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P190 |
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(EPA List of Lists, 2022)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available.
OSHA Process Safety Management (PSM) Standard List
No regulatory information available.
Alternate Chemical Names
- CARBAMIC ACID, METHYL-, 3-METHYLPHENYL ESTER
- CARBAMIC ACID, METHYL-, 3-TOLYL ESTER
- CARBAMIC ACID, METHYL-, M-TOLYL ESTER
- CARBAMIC ACID, METHYL-, M-TOLYL-ESTER
- DICRESYL
- DRC 3341
- KUMIAI
- M-CRESYL ESTER OF N-METHYLCARBAMIC ACID
- M-CRESYL METHYLCARBAMATE
- M-CRESYL N-METHYLCARBAMATE
- M-METHYLPHENYL METHYLCARBAMATE
- M-METHYLPHENYL N-METHYLCARBAMATE
- M-TOLYL METHYLCARBAMATE
- M-TOLYL N-METHYLCARBAMATE
- METACRATE
- 3-METHYLPHENYL METHYLCARBAMATE
- 3-METHYLPHENYL N-METHYLCARBAMATE
- METOLCARB
- MTMC
- S 1065
- 3-TOLYL METHYLCARBAMATE
- 3-TOLYL-N-METHYLCARBAMATE
- TSUMACIDE
- TSUMAUNKA