Tetryl

Synonyms & Trade Names

N-Methyl-N,2,4,6-tetranitroaniline, Nitramine, 2,4,6-Tetryl, 2,4,6-Trinitrophenyl-N-methylnitramine

CAS No.

479-45-8

RTECS No.

BY6300000

DOT ID & Guide

Formula

(NO₂)₃C₆H₂N(NO₂)CH₃

Conversion

IDLH

750 mg/m³
See: 479458

Exposure Limits

NIOSH REL

TWA 1.5 mg/m³ [skin]

OSHA PEL

TWA 1.5 mg/m³ [skin]

Measurement Methods

NIOSH S225 (II-3)
See: NMAM or OSHA Methods

Physical Description

Colorless to yellow, odorless, crystalline solid.

Molecular Weight

287.2

Boiling Point

356-374°F (Explodes)

Melting Point

268°F

Solubility

0.02%

Vapor Pressure

<1 mmHg

Ionization Potential

Specific Gravity

1.57

Flash Point

Explodes

Upper Explosive Limit

Lower Explosive Limit

Combustible Solid (Class A Explosive)

Incompatibilities & Reactivities

Oxidizable materials, hydrazine

Exposure Routes

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

Symptoms

sensitization dermatitis, itch, erythema (skin redness); edema on nasal folds, cheeks, neck; keratitis (inflammation of the cornea); sneezing; anemia; cough, coryza; irritability; malaise (vague feeling of discomfort), headache, lassitude (weakness, exhaustion), insomnia; nausea, vomiting; liver, kidney damage

Target Organs

Eyes, skin, respiratory system, central nervous system, liver, kidneys

Personal Protection/Sanitation

(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
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 7.5 mg/m³:
(APF = 5) Any quarter-mask respirator.
Click here for information on selection of N, R, or P filters.

Up to 15 mg/m³:
(APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100.
Click here for information on selection of N, R, or P filters.*
(APF = 10) Any supplied-air respirator*

Up to 37.5 mg/m³:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(APF = 25) Any powered, air-purifying respirator with a high-efficiency particulate filter.*

Up to 75 mg/m³:

(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.

(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Up to 750 mg/m³:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode

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 with 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

Tetryl

NIOSH REL

OSHA PEL

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