Tetranitromethane

CAS number: 509–14–8

NIOSH REL: 1 ppm (8 mg/m³) TWA

Current OSHA PEL: 1 ppm (8 mg/m³) TWA

1989 OSHA PEL: Same as current PEL

1993-1994 ACGIH TLV: 0.005 ppm (0.04 mg/m³) TWA, A2

Description of substance: Colorless to pale-yellow liquid or solid (below 57°F) with a pungent odor.

LEL :. . Unknown

Original (SCP) IDLH: 5 ppm

Basis for original (SCP) IDLH: The chosen IDLH is based on the statement by AIHA [1964] that concentrations above 5 ppm may cause irreversible lung and systemic damage [Koelsch 1917]. Patty [1963] reported that a cat exposed to 10 ppm for 20 minutes died within 10 days [Flury and Zernik 1931], and 5 cats exposed to 7 to 25 ppm for periods ranging from 2.5 to 5 hours died within 1 to 5.5 hours [Sievers et al. 1947].

Short-term exposure guidelines: None developed

ACUTE TOXICITY DATA:

Lethal concentration data:

Species	Reference	LC50 (ppm)	LCLo (ppm)	Time	Adjusted 0.5-hr LC (CF)	Derived value
Rat Rat Cat Mouse	Horn 1953 Kinkead et al. 1977 Marhold 1986 USAF 1977	LC65: 33 18 100 54	----- ----- ----- -----	6.5 hr 4 hr 20 min 4 hr	78 ppm (2.35) 36 ppm (2.0) 87 ppm (0.87) 108 ppm (2.0)	7.8 ppm 3.6 ppm 8.9 ppm 11 ppm

Other animal data: Cats exposed to 10 ppm for 20 min died within ten days [Flury and Zernik 1931]. It has been reported that cats exposed to 7 to 25 ppm for periods ranging from 2.5 to 5 hours died within 1 to 5.5 hours [Sievers et al. 1947].

Human data: It has been stated that concentrations above 5 ppm may cause irreversible lung and systemic damage [Koelsch 1917].

Revised IDLH: 4 ppm Basis for revised IDLH: Based on acute inhalation toxicity data in humans [Koelsch 1917] and animals [Horn 1953; Kinkead et al. 1977], the revised IDLH for tetranitromethane is 4 ppm.

REFERENCES:

1. AIHA [1964]. Tetranitromethane. In: Hygienic guide series. Am Ind Hyg Assoc J 25:513-515.

2. Flury F, Zernik F [1931]. Schädliche gase dämpfe, nebel, rauch- und staubarten. Berlin, Germany: Verlag von Julius Springer, p. 417 (in German).

3. Horn HJ [1953]. Chemical Corps Medical Laboratories Contract Report No. 20.

4. Kinkead ER, MacEwen JD, Haun CC, Vernot EH, Dacre JC [1977]. Toxic hazards evaluation of five atmospheric pollutants from Army ammunition plants. Wright-Patterson Air Force Base, OH: Air Force Systems Command, Aerospace Medical Division, Aerospace Medical Research Laboratory Technical Report AMRL-TR-77-25.

5. Koelsch F [1917]. Die giftwirkung des tetranitromethane. Gewerbehygiene 5:185 (in German). [From AIHA [1964]. Tetranitromethane. In: Hygienic guide series. Am Ind Hyg Assoc J 25:513-515.]

6. Marhold J [1986]. Prehled Prumyslove Toxikologie, Organicke Latky. Prague, Czechoslovakia: Avicenum, p. 403 (in Czechoslovakian).

7. Patty FA, ed. [1963]. Industrial hygiene and toxicology. 2nd rev. ed. Vol. II. Toxicology. New York, NY: Interscience Publishers, Inc., p. 2075.

8. Sievers RF, Rushing E, Gay H, Monaco AR [1947]. Toxic effects of tetranitromethane, a contaminant in crude TNT. Public Health Rep 62:1054-1058.

9. USAF [1977]. Proceedings of the 8th annual conference on environmental toxicology. Wright-Patterson Air Force Base, OH: Air Force Systems Command, Aerospace Medical Division, Aerospace Medical Research Technical Report, AMRL-TR-77-97.