Print
Chemical Datasheet

BENZIMIDAZOLE, 4,5-DICHLORO-2-(TRIFLUOROMETHYL)-

Chemical Identifiers

CAS Number UN/NA Number DOT Hazard Label USCG CHRIS Code
  • 3615-21-2
 none data unavailable none
NIOSH Pocket Guide International Chem Safety Card
none none
NFPA 704
data unavailable
General Description
A crystalline solid. Fine white needles when pure; the commercial material is brownish. Used as an herbicide. (EPA, 1998)

Hazards

Reactivity Alerts
none
Air & Water Reactions
No rapid reaction with air. No rapid reaction with water.
Fire Hazard
(Non-Specific -- Pesticide, solid, n.o.s.) Fire may produce irritating or poisonous gases. Runoff from fire control or dilution water may cause pollution. Avoid amine salts of hormone herbicides, alkali-unstable fungicides or insecticides. (EPA, 1998)
Health Hazard
(Non-specific -- Pesticide, solid, n.o.s.) Poisonous if swallowed. Inhalation of dust poisonous. (EPA, 1998)
Reactivity Profile
BENZIMIDAZOLE, 4,5-DICHLORO-2-(TRIFLUOROMETHYL)- is a halide- and amine-substituted aromatic compound. Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

Use caution: Liquids with this reactive group classification have been known to react with the absorbent listed below.

Response Recommendations

Isolation and Evacuation
No information available.
Firefighting
(Non-Specific -- Pesticide, solid, n.o.s.) Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Wear self-contained (positive pressure if available) breathing apparatus and full protective clothing.

(Non-Specific -- Pesticide, solid, n.o.s.) Small fires: dry chemical, carbon dioxide, water spray, or foam. Large fires: water spray, fog, or foam. (EPA, 1998)
Non-Fire Response
(Non-Specific -- Pesticide, solid, n.o.s.) Do not touch spilled material; stop leak if you can do it without risk.

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 material into clean, dry container and cover; move containers from spill area.

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
Inhalation and ingestion are routes of entry. Non-Specific -- Pesticide, solid, n.o.s.Move victim to fresh air; call emergency medical care. Remove and isolate contaminated clothing and shoes at the site. In case of contact with material, immediately flush skin or eyes with running water for at least 15 minutes. (EPA, 1998)

Physical Properties

Chemical Formula:
  • C8H3Cl2F3N2
Flash Point: (Non-Specific -- Pesticide, solid, n.o.s.) May burn, but does not ignite readily. (EPA, 1998)
Lower Explosive Limit (LEL): May burn but does not ignite readily. (EPA, 1998)
Upper Explosive Limit (UEL): May burn but does not ignite readily. (EPA, 1998)
Autoignition Temperature: data unavailable
Melting Point: 415 to 417°F (EPA, 1998)
Vapor Pressure: 4e-05 mmHg at 72.5°F (EPA, 1998)
Vapor Density (Relative to Air): data unavailable
Specific Gravity: data unavailable
Boiling Point: data unavailable
Molecular Weight: 255.03 (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
Dichloro-2-trifluoromethylbenzimidazole, 4,5-; (Chloroflurazole) (3615-21-2) 1.2 mg/m3 13 mg/m3 78 mg/m3
(DOE, 2024)

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
Benzimidazole, 4,5-dichloro-2-(trifluoromethyl)- 3615-21-2 500/10000 pounds 500 pounds

(EPA List of Lists, 2024)

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