MALATHION
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The
Chemical Identifier fields
include common identification numbers, the
NFPA diamond
U.S. Department of Transportation hazard labels, and a general
description of the chemical. The information in CAMEO Chemicals comes
from a variety of
data sources.
| CAS Number | UN/NA Number |
|---|---|
|
|
| DOT Hazard Label | USCG CHRIS Code |
|
|
| NIOSH Pocket Guide | International Chem Safety Card |
Malathion
|
NFPA 704
data unavailable
General Description
Yellow to dark-brown liquid with a skunk-like odor. Sinks in water. Freezing point is 37°F. (USCG, 1999)
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The
Hazard fields
include
special hazard alerts
air and water
reactions, fire hazards, health hazards, a reactivity profile, and
details about
reactive groups assignments
and
potentially incompatible absorbents.
The information in CAMEO Chemicals comes from a variety of
data sources.
Reactivity Alerts
none
Air & Water Reactions
Insoluble in water.
Fire Hazard
Special Hazards of Combustion Products: Vapors and fumes from fires are hazardous. They include sulfur dioxide and phosphoric acid.
Behavior in Fire: Gives off hazardous fumes. Area surrounding fire should be diked to prevent water runoff. (USCG, 1999)
Behavior in Fire: Gives off hazardous fumes. Area surrounding fire should be diked to prevent water runoff. (USCG, 1999)
Health Hazard
Exposure to fumes from a fire or to liquid causes headache, blurred vision, constricted pupils of the eyes, weakness, nausea, cramps, diarrhea, and tightness in the chest. Muscles twitch and convulsions may follow. The symptoms may develop over a period of 8 hours. (USCG, 1999)
Reactivity Profile
MALATHION is a yellow to brown liquid that solidifies at 2.9°C, moderately toxic. Organic phosphate insecticide, acts as an inhibitor of cholinesterase. When heated to decomposition it emits toxic fumes of oxides of sulfur and phosphorus [Lewis, 3rd ed., 1993, p. 789].
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents
No information available.
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The
Response Recommendation fields
include isolation and evacuation distances, as well as recommendations for
firefighting, non-fire response, protective clothing, and first aid. The
information in CAMEO Chemicals comes from a variety of
data sources.
Isolation and Evacuation
Excerpt from ERG Guide 152 [Substances - Toxic (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 tank car or highway tank 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, 2024)
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 tank car or highway tank 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, 2024)
Firefighting
Fire Extinguishing Agents: Dry chemical, carbon dioxide, water spray, foam (USCG, 1999)
Non-Fire Response
Neutralizing Agents for Acids and Caustics: Liquid bleach solution for decontamination. (USCG, 1999)
Protective Clothing
Excerpt from NIOSH Pocket Guide for Malathion:
Skin: PREVENT SKIN CONTACT - Wear appropriate personal protective clothing to prevent skin contact.
Eyes: PREVENT EYE CONTACT - Wear appropriate eye protection to prevent eye contact.
Wash skin: WHEN CONTAMINATED - The worker should immediately wash the skin when it becomes contaminated.
Remove: WHEN WET OR CONTAMINATED - Work clothing that becomes wet or significantly contaminated should be removed and replaced.
Change: DAILY - Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. (NIOSH, 2024)
:Skin: PREVENT SKIN CONTACT - Wear appropriate personal protective clothing to prevent skin contact.
Eyes: PREVENT EYE CONTACT - Wear appropriate eye protection to prevent eye contact.
Wash skin: WHEN CONTAMINATED - The worker should immediately wash the skin when it becomes contaminated.
Remove: WHEN WET OR CONTAMINATED - Work clothing that becomes wet or significantly contaminated should be removed and replaced.
Change: DAILY - Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. (NIOSH, 2024)
DuPont Tychem® Suit Fabrics
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Tychem® Fabric Legend
| QS = Tychem 2000 SFR |
| QC = Tychem 2000 |
| SL = Tychem 4000 |
| C3 = Tychem 5000 |
| TF = Tychem 6000 |
| TP = Tychem 6000 FR |
| RC = Tychem RESPONDER® CSM |
| TK = Tychem 10000 |
| RF = Tychem 10000 FR |
Testing Details
The fabric permeation data was generated for DuPont by a third party
laboratory. Permeation data for industrial chemicals is obtained per
ASTM F739. Normalized breakthrough times (the time at which the
permeation rate exceeds 0.1 μg/cm2/min) are reported in minutes. All
chemicals have been tested between approximately 20°C and 27°C unless
otherwise stated. All chemicals have been tested at a concentration of
greater than 95% unless otherwise stated.
Chemical warfare agents (Lewisite, Sarin, Soman, Sulfur Mustard, Tabun
and VX Nerve Agent) have been tested at 22°C and 50% relative humidity
per military standard MIL-STD-282. "Breakthrough time" for chemical
warfare agents is defined as the time when the cumulative mass which
permeated through the fabric exceeds the limit in MIL-STD-282 [either
1.25 or 4.0 μg/cm2].
A Caution from DuPont
This information is based upon technical data that DuPont believes to
be reliable on the date issued. It is subject to revision as additional
knowledge and experience are gained. The information reflects
laboratory performance of fabrics, not complete garments, under
controlled conditions. It is intended for informational use by persons
having technical skill for evaluation under their specific end-use
conditions, at their own discretion and risk. It is the user's
responsibility to determine the level of toxicity and the proper
personal protective equipment needed. Anyone intending to use this
information should first verify that the garment selected is suitable
for the intended use. In many cases, seams and closures have shorter
breakthrough times and higher permeation rates than the fabric. If
fabric becomes torn,abraded or punctured, or if seams or closures fail,
or if attached gloves, visors, etc. are damaged, end user should
discontinue use of garment to avoid potential exposure to chemical.
Since conditions of use are outside our control, DuPont makes no
warranties, express or implied, including, without limitation, no
warranties of merchantability or fitness for a particular use and
assume no liability in connection with any use of this information.
This information is not intended as a license to operate under or a
recommendation to infringe any patent, trademark or technical
information of DuPont or others covering any material or its use.
| Chemical | CAS Number | State | QS | QC | SL | C3 | TF | TP | RC | TK | RF |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Malathion | 121-75-5 | Liquid | >480 | >480 | >480 |
> indicates greater than.
Special Warning from DuPont: Tychem® and Tyvek® fabrics should not be used around heat, flames, sparks or in potentially flammable or explosive environments. Only...
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...Tychem® ThermoPro, Tychem® Reflector® and Tychem® TK styles 600T/601T
(with aluminized outer suit) garments are designed and tested to help
reduce burn injury during escape from a flash fire. Users of Tychem®
ThermoPro, Tychem® Reflector® and Tychem® TK styles 600T/601T (with
aluminized outer suit) garments should not knowingly enter an explosive
environment. Tychem® garments with attached socks must be worn inside
protective outer footwear and are not suitable as outer footwear. These
attached socks do not have adequate durability or slip resistance to be
worn as the outer foot covering.
(DuPont, 2024)
First Aid
EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, administer a slurry of activated charcoal in water and simultaneously call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)
SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, administer a slurry of activated charcoal in water and simultaneously call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)
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The
Physical Property fields
include properties such as vapor pressure and
boiling point, as well as explosive limits and
toxic exposure thresholds
The information in CAMEO Chemicals comes from a variety of
data sources.
Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
| Chemical Formula: |
|
Flash Point:
greater than 325°F
(NTP, 1992)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
37.1°F
(NTP, 1992)
Vapor Pressure:
4e-05 mmHg
at 86°F
(NTP, 1992)
Vapor Density (Relative to Air): data unavailable
Specific Gravity:
1.234
at 77°F
(USCG, 1999)
- Denser than water; will sink
Boiling Point:
313 to 315°F
at 0.7 mmHg
(decomposes)
(NTP, 1992)
Molecular Weight:
330.36
(NTP, 1992)
Water Solubility:
less than 1 mg/mL
at 70.7°F
(NTP, 1992)
Ionization Energy/Potential: data unavailable
IDLH:
250 mg/m3
(NIOSH, 2024)
AEGLs (Acute Exposure Guideline Levels)
| Exposure Period | AEGL-1 | AEGL-2 | AEGL-3 |
|---|---|---|---|
| 10 minutes | 15 mg/m3 | 150 mg/m3 | 500 mg/m3 |
| 30 minutes | 15 mg/m3 | 150 mg/m3 | 500 mg/m3 |
| 60 minutes | 15 mg/m3 | 120 mg/m3 | 390 mg/m3 |
| 4 hours | 15 mg/m3 | 77 mg/m3 | 250 mg/m3 |
| 8 hours | 15 mg/m3 | 50 mg/m3 | 140 mg/m3 |
(NAC/NRC, 2024)
ERPGs (Emergency Response Planning Guidelines)
No ERPG information available.PACs (Protective Action Criteria)
| Chemical | PAC-1 | PAC-2 | PAC-3 |
|---|---|---|---|
| Malathion (121-75-5) | 15 mg/m3 | 120 mg/m3 | 390 mg/m3 |
(DOE, 2024)
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The
Regulatory Information fields
include information from
the U.S. Environmental Protection Agency's Title III Consolidated List of
Lists,
the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility
Anti-Terrorism Standards,
and the U.S. Occupational Safety and Health Administration's
Process Safety Management of Highly Hazardous Chemicals Standard List
(see more about these
data sources).
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 |
|---|---|---|---|---|---|---|---|
| Malathion | 121-75-5 | 100 pounds | 313 |
(EPA List of Lists, 2024)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available.OSHA Process Safety Management (PSM) Standard List
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This section provides a listing of alternate names for this chemical,
including trade names and synonyms.
- AMERICAN CYANAMID 4,049
- CALMATHION
- CARBETHOXY MALATHION
- CARBETOVUR
- CARBETOX
- CARBOFOS
- CARBOPHOS
- CELTHION
- CHEMATHION
- CIMEXAN
- COMPOUND 4049
- CYTHION
- CYTHION INSECTICIDE
- DETMOL MA
- DETMOL MA 96%
- 1,2-DI(ETHOXYCARBONYL)ETHYL O,O-DIMETHYL PHOSPHORODITHIOATE
- DICARBOETHOXYETHYL O,O-DIMETHYL PHOSPHORODITHIOATE
- DIETHYL (DIMETHOXYPHOSPHINOTHIOYLTHIO) BUTANEDIOATE
- DIETHYL (DIMETHOXYPHOSPHINOTHIOYLTHIO) SUCCINATE
- DIETHYL (DIMETHOXYPHOSPHINOTHIOYLTHIO)SUCCINATE
- DIETHYL MERCAPTOSUCCINATE S-ESTER WITH O,O-DIMETHYL PHOSPHORODITHIOATE
- DIETHYL MERCAPTOSUCCINATE S-ESTER WITH O,O-DIMETHYLPHOSPHORODITHIOATE
- DIETHYL MERCAPTOSUCCINATE, O,O-DIMETHYL DITHIOPHOSPHATE, S-ESTER
- DIETHYL MERCAPTOSUCCINATE, O,O-DIMETHYL PHOSPHORODITHIOATE
- DIETHYL MERCAPTOSUCCINATE, O,O-DIMETHYL THIOPHOSPHATE
- DIETHYL MERCAPTOSUCCINIC ACID O,O-DIMETHYL PHOSPHORODITHIOATE
- ((DIMETHOXYPHOSPHINOTHIOYL)THIO)BUTANEDIOIC ACID DIETHYL ESTER
- [(DIMETHOXYPHOSPHINOTHIOYL)THIO]BUTANEDIOIC ACID DIETHYL ESTER
- EMMATOS
- ENT 17,034
- ETHIOLACAR
- ETIOL
- EXTERMATHION
- FORMAL
- FORTHION
- FOSFOTHION
- FOSFOTION
- FYFANON
- 8059HC
- HILTHION
- IFO 13140
- INSECTICIDE 4049
- INSECTICIDE NO. 4049
- KARBOFOS
- KOP-THION
- MALACIDE
- MALAFOR
- MALAGRAN
- MALAMAR
- MALAMAR 50
- MALASOL
- MALASPRAY
- MALATAF
- MALATHINE
- MALATHION
- MALATHION E 50
- MALATHION LV CONCENTRATE
- MALATHON
- MALATHYL
- MALATHYNE
- MALATOL
- MALDISON
- MAVIDAN
- MERCAPTOSUCCINIC ACID DIETHYL ESTER
- MERCAPTOSUCCINIC ACID, DIETHYL ESTER, S-ESTER WITH O,O-DIMETHYL PHOSPHORO-DITHIOATE
- MERCAPTOTHION
- MLT
- MOSCARDA
- NCI-C00215
- O,O-DIMETHYL S-(1,2-DICARBETHOXYETHYL) DITHIOPHOSPHATE
- O,O-DIMETHYL S-1,2-DI(ETHOXYCARBAMYL)ETHYL PHOSPHORODITHIOATE
- O,O-DIMETHYL-S-(1,2-BIS(ETHOXYCARBONYL)ETHYL)DITHIOPHOSPHATE
- O,O-DIMETHYL-S-(1,2-DICARBETHOXYETHYL) DITHIOPHOSPHATE
- O,O-DIMETHYL-S-(1,2-DICARBETHOXYETHYL) THIOTHIONOPHOSPHATE
- O,O-DIMETHYL-S-(1,2-DICARBETHOXYETHYL)PHOSPHORODITHIOATE
- O,O-DIMETHYLDITHIOPHOSPHATE DIETHYLMERCAPTOSUCCINATE
- OLEOPHOSPHOTHION
- ORTHO MALATHION
- PHOSPHORODITHIOIC ACID, O,O-DIMETHYL ESTER, S-ESTER WITH DIETHYL MERCAPTOSUCCINATE
- PHOSPHOTHION
- PRIODERM
- S-(1,2-BIS(CARBETHOXY)ETHYL) O,O-DIMETHYL DITHIOPHOSPHATE
- S-(1,2-BIS(ETHOXYCARBONYL)ETHYL O,O-DIMETHYLPHOSPHORODITHIOATE
- S-(1,2-DI(ETHOXYCARBONYL)ETHYL) DIMETHYLPHOSPHOROTHIOLOTHIONATE
- S-(1,2-DICARBETHOXYETHYL) O,O-DIMETHYLDITHIOPHOSPHATE
- S-1,2-BIS(ETHOXYCARBONYL)ETHYL-O,O-DIMETHYL THIOPHOSPHATE
- S-[1,2-BIS(CARBETHOXY)ETHYL] O,O-DIMETHYL DITHIOPHOSPHATE
- S-[1,2-BIS(ETHOXYCARBONYL) ETHYL]O,O-DIMETHYL-PHOSPHORODITHIOATE
- S-[1,2-BIS(ETHOXYCARBONYL)ETHYL] O,O-DIMETHYL PHOSPHORODITHIOATE
- S-[1,2-BIS(ETHOXYCARBONYL)ETHYL] O,O-DIMETHYL THIOPHOSPHATE
- SADOFOS
- SADOPHOS
- SECURITY
- SF 60
- SIPTOX I
- SUCCINIC ACID, MERCAPTO-, DIETHYL ESTER, S-ESTER WITH O,O-DIMETHYL PHOSPHORODITHIOATE
- SUMITOX
- TAK
- TAK (PESTICIDE)
- TM 4049
- VETIOL
- ZITHIOL
Version 3.1.0