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Chemical Datasheet
MEXACARBATE |
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Chemical Identifiers
CAS Number |
UN/NA Number |
DOT Hazard Label |
USCG CHRIS Code |
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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
Mexacarbate is an odorless white crystalline solid dissolved in a liquid carrier. It is toxic by inhalation, skin absorption, and/or ingestion. When heated to high temperatures it may emit toxic oxides of nitrogen. It will burn but it is difficult to ignite. It is used as a pesticide.
Hazards
Reactivity Alerts
none
Air & Water Reactions
No rapid reaction with air. No rapid reaction with water.
Fire Hazard
(Non-Specific -- Carbamate Pesticide, Solid, n.o.s.) Fire may produce irritating or poisonous gases. This material may burn but does not ignite readily. Container may explode in heat of fire. When heated to decomposition it emits toxic fumes of nitrogen oxides. Avoid decomposition in highly alkaline media. Subject to photo-decomposition in the solid state. (EPA, 1998)
Health Hazard
Extremely toxic: probable oral lethal dose for humans is 5-50 mg/kg; between 7 drops and 1 teaspoonful for 70 kg person (150 lb.). (Non-Specific -- Carbamate Pesticide, Solid, n.o.s.) Poisonous; may be fatal if inhaled, swallowed, or absorbed through skin. Contact may cause burns to skin and eyes. (EPA, 1998)
Reactivity Profile
MEXACARBATE is a carbamate ester-amine. Amines behave as chemical bases. 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)
- Amines, Phosphines, and Pyridines
- Carbamates
Potentially Incompatible Absorbents
Use caution: Liquids with this reactive group classification have been
known to react with the
absorbent
listed below.
- Mineral-Based & Clay-Based Absorbents
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
(Non-Specific -- Carbamate Pesticide, Solid, n.o.s.) Small fires: dry chemical, carbon dioxide, water spray, or foam. Large fires: water spray, fog, or foam. Dike fire control water for later disposal; do not scatter the material. (EPA, 1998)
Non-Fire Response
Excerpt from 151
[Substances - Toxic (Non-Combustible)]:
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2020)
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
Warning: Effects may be delayed. Caution is advised. Vital signs should be monitored closely.
Note: Mexacarbate is a cholinesterase inhibitor.
Signs and Symptoms of Mexacarbate Exposure: Signs and symptoms of acute exposure to mexacarbate may include the following: nausea, vomiting, abdominal cramps, diarrhea, headache, runny nose, excessive salivation, sweating, lassitude, weakness, dizziness, changes in heart rate, tightness in chest, and low blood pressure. Blurring or dimness of vision, tearing, eye muscle spasms, pinpoint pupils, loss of muscle coordination, slurring of speech, and muscle spasms may also occur. Psychosis, seizures, and coma may occur. Respiratory signs include shortness of breath, respiratory depression, and respiratory paralysis.
Emergency Life-Support Procedures: Acute exposure to mexacarbate 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 mexacarbate.
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 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. Rush to a health care facility.
Dermal/Eye Exposure:
1. Remove victims from exposure. Emergency personnel should avoid self-exposure to mexacarbate.
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 oxygen or other respiratory support.
3. Remove and isolate 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 thoroughly with water.
6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
7. Rush 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 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 mexacarbate is unknown or 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 mexacarbate 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. Rush to a health care facility. (EPA, 1998)
Physical Properties
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
185°F
(EPA, 1998)
Vapor Pressure:
Less than 0.1 at 293.2F
(EPA, 1998)
Vapor Density (Relative to Air): data unavailable
Specific Gravity: data unavailable
Boiling Point: data unavailable
Molecular Weight:
222.29
(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 |
Mexacarbate; (4-(Dimethylamine)-3,5-xylyl N-methylcarbamate) (315-18-4)
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1.3 mg/m3 |
14 mg/m3 |
84 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 |
Mexacarbate |
315-18-4 |
500/10000 pounds |
1000 pounds |
1000 pounds |
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P128 |
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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
- CARBAMATE, 4-DIMETHYLAMINO-3,5-XYLYL, N-METHYL-
- CARBAMIC ACID, METHYL-, 4-(DIMETHYLAMINO)-3,5-DIMETHYLPHENYL ESTER
- CARBAMIC ACID, METHYL-, 4-(DIMETHYLAMINO)-3,5-XYLYL ESTER
- CARBAMIC ACID, METHYL-, 4-DIMETHYLAMINO-3,5-XYLYL ESTER
- 3,5-DIMETHYL-4-(DIMETHYLAMINO)PHENYL METHYLCARBAMATE
- 4-(DIMETHYLAMINO)-3,5-DIMETHYLPHENOL METHYLCARBAMATE(ESTER)
- 4-(DIMETHYLAMINO)-3,5-DIMETHYLPHENYL N-METHYLCARBAMATE
- 4-(DIMETHYLAMINO)-3,5-XYLENOL, METHYLCARBAMATE(ESTER)
- 4-(DIMETHYLAMINO)-3,5-XYLYL N-METHYLCARBAMATE
- 4-DIMETHYLAMINO-3,5-DIMETHYLPHENYL METHYLCARBAMATE
- 4-DIMETHYLAMINO-3,5-DIMETHYLPHENYL N-METHYLCARBAMATE
- 4-DIMETHYLAMINO-3,5-XYLENYL N-METHYLCARBAMATE
- 4-DIMETHYLAMINO-3,5-XYLYL METHYLCARBAMATE
- 4-DIMETHYLAMINO-3,5-XYLYL N-METHYLCARBAMATE
- DOWCO 139
- DOWCO-139
- ENT 25,766
- ENT 25766
- ENT-25,766
- MAZ
- METHYL-4- DIMETHYLAMINO-3,5-XYLYL CARBAMATE
- METHYL-4-DIMETHYLAMINO-3,5-XYLYL ESTER OF CARBAMIC ACID
- METHYLCARBAMIC ACID 4-(DIMETHYLAMINO)-3,5-XYLYL ESTER
- MEXACARBATE
- MEXACARBATE, [LIQUID]
- MEXICARBATE
- 4-(N,N-DIMETHYLAMINO)- 3,5-XYLYL N-METHYLCARBAMATE
- NCI-C00544
- OMS-47
- PHENOL, 4-(DIMETHYLAMINO)- 3,5-DIMETHYL-, METHYLCARBAMATE(ESTER)
- PHENOL, 4-(DIMETHYLAMINO)-3,5-DIMETHYL-, METHYLCARBAMATE(ESTER)
- 3,5-XYLENOL, 4-(DIMETHYLAMINO)-, METHYLCARBAMATE
- ZACTRAN
- ZECTANE
- ZECTRAN
- ZEXTRAN