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CHLORMEQUAT CHLORIDE

6.1 - Poison
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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
  • 999-81-5
DOT Hazard Label USCG CHRIS Code
  • Poison
none
NIOSH Pocket Guide International Chem Safety Card
none
NFPA 704
data unavailable
General Description
White crystals with a fishlike odor. Used as a plant growth regulator. Said to be effective for cereal grains, tomatoes, and peppers. (EPA, 1998)

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
Very hygroscopic. Water soluble. Aqueous solutions are acidic.
Fire Hazard
Flash point data for this chemical are not available; however, it is probably combustible. (NTP, 1992)
Health Hazard
Inhalation of spray and prolonged or repeated contact with skin should be avoided. (EPA, 1998)
Reactivity Profile
CHLORMEQUAT CHLORIDE is incompatible with strong oxidizing agents. It is corrosive to unprotected metals. (NTP, 1992)

Quaternary ammonium salts often serve as catalysts in reactions. They are incompatible with many strong oxidizers and reducing agents, such as metal hydrides, alkali/active metals, and organometallics.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

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 154 [Substances - Toxic and/or Corrosive (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 -- Poisonous Solid, n.o.s.) For small fires, use dry chemical, carbon dioxide, water spray, or foam. For large fires, use water spray, fog, or foam. (EPA, 1998)
Non-Fire Response
(Non-Specific -- Poisonous Solid, n.o.s.) Keep unnecessary people away. Isolate hazard area and deny entry. Stop leak if you can do it without risk. For small spills: take up with sand or other noncombustible absorbent material and place into containers for later disposal.

Small dry spills: with clean shovel, place in clean, dry container and cover, move from spill area. For large spills: dike far ahead of spill for later disposal. (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
Signs and Symptoms of Chlormequat Chloride Exposure: No information on specific clinical effects of exposure to chlormequat chloride was found in available references. However, because chlormequat chloride is expected to be corrosive, irritation and burning of the skin, eyes, and mucous membranes may be noted. Light-headedness, drowsiness, slurred speech, pupillary dilation, increased salivation, dysphagia (difficulty swallowing), abdominal pain, and spontaneous vomiting may occur. Stridor (high pitched, noisy respirations), dyspnea (shortness of breath), and pulmonary edema may occur. Apathy and mental confusion may develop, with progression to coma and death.

Emergency Life-Support Procedures: Acute exposure to chlormequat chloride 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 chlormequat chloride.
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 chlormequat chloride.
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 30 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. DO NOT induce vomiting or attempt to neutralize!
3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
4. Activated charcoal is of no value.
5. Give the victims water or milk: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Water or milk should be given only if victims are conscious and alert.
6. Rush to a health care facility. (EPA, 1998)

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.
Chemical Formula:
  • C5H13ClN.Cl
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: 473°F Decomposes (EPA, 1998)
Vapor Pressure: 7.5e-08 mmHg at 68°F (NTP, 1992)
Vapor Density (Relative to Air): data unavailable
Specific Gravity: data unavailable
Boiling Point: data unavailable
Molecular Weight: 158.07 (EPA, 1998)
Water Solubility: greater than or equal to 100 mg/mL at 73°F (NTP, 1992)
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
Chlormequat chloride; (Choline dichloride) (999-81-5) 0.64 mg/m3 7 mg/m3 65 mg/m3
(DOE, 2018)

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
Chlormequat chloride 999-81-5 100/10000 pounds 100 pounds

(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.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • AC 38555
  • AMMONIUM, (2-CHLOROETHYL)TRIMETHYL-, CHLORIDE
  • ANTYWYLEGACZ
  • BARLEYQUAT B
  • BERCEMA CCC
  • (BETA-CHLOROETHYL)TRIMETHYLAMMONIUM CHLORIDE
  • BETA-CHLOROETHYLTRIMETHYLAMMONIUM CHLORIDE
  • CCC
  • CCC PLANT GROWTH REGULANT
  • CE CE CE
  • CHLORCHOLINE CHLORIDE
  • CHLORMEQUAT
  • CHLORMEQUAT CHLORIDE
  • 2-CHLORO-N,N,N-TRIMETHYLETHANAMINIUM CHLORIDE
  • CHLOROCHOLINE CHLORIDE
  • (2-CHLOROETHYL)TRIMETHYLAMMONIUM CHLORIDE
  • CHOLINE DICHLORIDE
  • 60-CS-16
  • 60CS16
  • CYCLOCEL
  • CYCOCEL
  • CYCOCEL EXTRA
  • CYCOCEL-EXTRA
  • CYCOGAN
  • CYCOGAN EXTRA
  • CYOCEL
  • EI 38,555
  • ETHANAMINIUM, 2-CHLORO- N,N,N-TRIMETHYL-, CHLORIDE
  • HALLOWEEN
  • HICO CCC
  • HORMOCEL-2CCC
  • INCRECEL
  • LIHOCIN
  • MICROCIL
  • NCI-C02960
  • NEW '5C' CYCOCEL
  • NEW 5C CYCOCEL
  • PREMIX
  • RETACEL
  • STABILAN
  • TRIMETHYL-BETA- CHLOROETHYLAMMONIUM CHLORIDE
  • TRIMETHYL-BETA-CHLOROETHYLAMMONIUM CHLORIDE
  • TUR
  • WR 62
  • ZAR

Version 3.0.0