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MSDS  : Nitric acid (red fuming)
CAS  : 7697-37-2
SYNONYMS  : * Nitrous fumes * Red fuming nitric acid * RFNA
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : QU5900000
CHEMICAL NAME : Nitric acid (red fuming)
CAS REGISTRY NUMBER : 7697-37-2
LAST UPDATED : 199712
DATA ITEMS CITED : 27
MOLECULAR FORMULA : H-N-O3
MOLECULAR WEIGHT : 63.02
SYNONYMS/TRADE NAMES :
* Nitrous fumes
* Red fuming nitric acid
* RFNA

*** HEALTH HAZARD DATA ***

** ACUTE TOXICITY DATA **

TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 67 ppm(NO2)/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine.
(Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU.
Volume(issue)/page/year: 10,418,1954

** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 9300 ppb(NO2)/4H/10D-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea
or bronchi
Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis)
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine.
(Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU.
Volume(issue)/page/year: 6,20,1952

*** REVIEWS ***

TOXICOLOGY REVIEW
BEPRDY Bulletin Europeen de Physiopathologie Respiratoire. (Oxford, UK)
V.12-15, 1976-79. Volume(issue)/page/year: 13,191,1977

TOXICOLOGY REVIEW
XPHBAO U.S. Public Health Service, Public Health Bulletin. (Washington, DC)
Volume(issue)/page/year: 272,1,1941

*** OCCUPATIONAL EXPOSURE LIMITS ***

OEL-ARAB Republic of Egypt:TWA 2 ppm (5 mg/m3) JAN 1993

OEL-AUSTRALIA:TWA 2 ppm (5 mg/m3);STEL 4 ppm (10 mg/m3) JAN 1993

OEL-BELGIUM:TWA 2 ppm (5.2 mg/m3);STEL 4 ppm (10 mg/m3) JAN 1993

OEL-DENMARK:TWA 2 ppm (5 mg/m3) JAN 1993

OEL-FINLAND:TWA 2 ppm (5 mg/m3);STEL 5 ppm (13 mg/m3);Skin JAN 1993

OEL-FRANCE:TWA 2 ppm (5 mg/m3);STEL 4 ppm (10 mg/m3) JAN 1993

OEL-GERMANY:TWA 10 ppm (25 mg/m3) JAN 1993

OEL-HUNGARY:STEL 5 mg/m3 JAN 1993

OEL-JAPAN:TWA 2 ppm (5.2 mg/m3) JAN 1993

OEL-THE PHILIPPINES:TWA 2 ppm (5 mg/m3) JAN 1993

OEL-POLAND:TWA 10 mg/m3 JAN 1993

OEL-RUSSIA:TWA 2 ppm;STEL 2 mg/m3;Skin JAN 1993

OEL-SWEDEN:TWA 2 ppm (5 mg/m3);STEL 5 ppm (13 mg/m3) JAN 1993

OEL-SWITZERLAND:TWA 2 ppm (5 mg/m3);STEL 4 ppm (10 mg/m3) JAN 1993

OEL-THAILAND:TWA 2 ppm (5 mg/m3) JAN 1993

OEL-TURKEY:TWA 2 ppm (5 mg/m3) JAN 1993

OEL-UNITED KINGDOM:TWA 2 ppm (5 mg/m3);STEL 4 ppm (10 mg/m3) JAN 1993

*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 50742
No. of Facilities: 18088 (estimated)
No. of Industries: 197
No. of Occupations: 101
No. of Employees: 132401 (estimated)

NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 50742
No. of Facilities: 18239 (estimated)
No. of Industries: 201
No. of Occupations: 120
No. of Employees: 297627 (estimated)
No. of Female Employees: 76316 (estimated)

*** STATUS IN U.S. ***

EPA TSCA Section 8(b) CHEMICAL INVENTORY

EPA TSCA Section 8(d) unpublished health/safety studies

EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

NIOSH Analytical Method, 1996: Acids, inorganic, 7903


*** END OF RECORD ***
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