Carbaryl

Synonyms & Trade Names

1-Naphthyl N-Methyl-carbamate, α-Naphthyl N-methyl-carbamate, Sevin®

CAS No.

63-25-2

RTECS No.

FC5950000

DOT ID & Guide

2757 151

Formula

CH₃NHCOOC₁₀H₇

Conversion

IDLH

100 mg/m³
See: 63252

Exposure Limits

NIOSH REL

TWA 5 mg/m³

OSHA PEL

TWA 5 mg/m³

Measurement Methods

NIOSH 5006 , 5601;
OSHA 63
See: NMAM or OSHA Methods

Physical Description

White or gray, odorless solid. [pesticide]

Molecular Weight

201.2

Boiling Point

Decomposes

Melting Point

293°F

Solubility

0.01%

Vapor Pressure

(77°F): <0.00004 mmHg

Ionization Potential

Specific Gravity

1.23

Flash Point

Upper Explosive Limit

Lower Explosive Limit

Noncombustible Solid, but may be dissolved in flammable liquids.

Incompatibilities & Reactivities

Strong oxidizers, strongly alkaline pesticides

Exposure Routes

inhalation, skin absorption, ingestion, skin and/or eye contact

Symptoms

Miosis, blurred vision, tear; rhinorrhea (discharge of thin nasal mucus), salivation; sweating; abdominal cramps, nausea, vomiting, diarrhea; tremor; cyanosis; convulsions; irritation skin; possible reproductive effects

Target Organs

respiratory system, central nervous system, cardiovascular system, skin, blood cholinesterase, reproductive system

Personal Protection/Sanitation

(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily

First Aid

(See procedures)
Eye:Irrigate immediately
Skin:Soap wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately

Respirator Recommendations

NIOSH/OSHA

Up to 50 mg/m³:
(APF = 10) Any supplied-air respirator*

Up to 100 mg/m³:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

Carbaryl

NIOSH REL

OSHA PEL

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