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MSDS  : Sodium hydroxide
CAS  : 1310-73-2
SYNONYMS  : * Caustic soda * Hydroxyde de sodium * Lewis-red devil lye * Natriumhydroxid * Natriumhydroxyde * Soda lye * Sodio(idrossido di) * Sodium hydrate * Sodium hydroxide * Sodium(hydroxyde de) * White caustic
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : WB4900000
CHEMICAL NAME : Sodium hydroxide
CAS REGISTRY NUMBER : 1310-73-2
OTHER CAS REGISTRY NOS. : 8012-01-9
LAST UPDATED : 199712
DATA ITEMS CITED : 46
MOLECULAR FORMULA : H-Na-O
MOLECULAR WEIGHT : 40.00
WISWESSER LINE NOTATION : NA Q
COMPOUND DESCRIPTOR : Agricultural Chemical
Mutagen
Primary Irritant
SYNONYMS/TRADE NAMES :
* Caustic soda
* Hydroxyde de sodium
* Lewis-red devil lye
* Natriumhydroxid
* Natriumhydroxyde
* Soda lye
* Sodio(idrossido di)
* Sodium hydrate
* Sodium hydroxide
* Sodium(hydroxyde de)
* White caustic

*** HEALTH HAZARD DATA ***

** SKIN/EYE IRRITATION DATA **

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Primate - monkey
DOSE/DURATION : 1%/24H
REACTION SEVERITY : Severe
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
6,701,1964

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 500 mg/24H
REACTION SEVERITY : Severe
REFERENCE :
28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku,"
Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu
Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,7,1972

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 400 ug
REACTION SEVERITY : Mild
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,627,1983

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 1%
REACTION SEVERITY : Severe
REFERENCE :
AJOPAA American Journal of Ophthalmology. (Ophthalmic Pub. Co., 435 N.
Michigan Ave., Suite 1415, Chicago, IL 60611) Series 3: V.1- 1918-
Volume(issue)/page/year: 29,1363,1946

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 50 ug/24H
REACTION SEVERITY : Severe
REFERENCE :
28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku,"
Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu
Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,7,1972

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 1 mg/24H
REACTION SEVERITY : Severe
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
6,701,1964

TYPE OF TEST : Rinsed with water
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 1 mg/30S
REACTION SEVERITY : Severe
REFERENCE :
TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85,
Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 23,281,1982

** ACUTE TOXICITY DATA **

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 40 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
COREAF Comptes Rendus Hebdomadaires des Seances, Academie des Sciences.
(Paris, France) V.1-261, 1835-1965. For publisher information, see CRASEV.
Volume(issue)/page/year: 257,791,1963

TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und
Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher
information, see NSAPCC. Volume(issue)/page/year: 184,587,1937

** MUTATION DATA **

TYPE OF TEST : Cytogenetic analysis
ROUTE OF EXPOSURE : Parenteral
TEST SYSTEM : Insect - grasshopper
DOSE/DURATION : 20 mg
REFERENCE :
NULSAK Nucleus (Calcutta). (Dr. A.K. Sharma, Centre of Advanced Studies in
Cell and Chromosome Research, Calcutta, 35 Baliygunge Circular Rd., Calcutta
700 019, India) V.1- 1958- Volume(issue)/page/year: 9,119,1966

TYPE OF TEST : Cytogenetic analysis
TEST SYSTEM : Rodent - hamster Lung
DOSE/DURATION : 10 mmol/L
REFERENCE :
CYTBAI Cytobios. (Faculty Press, 88 Regent St., Cambridge, UK) V.1- 1969-
Volume(issue)/page/year: 55,167,1988

TYPE OF TEST : Cytogenetic analysis
TEST SYSTEM : Rodent - hamster Ovary
DOSE/DURATION : 16 mmol/L
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 225,55,1989

*** REVIEWS ***

ACGIH TLV-CL 2 mg/m3
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997

TOXICOLOGY REVIEW
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000
Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year:
39,299,1978

*** U.S. STANDARDS AND REGULATIONS ***

EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION
FEREAC Federal Register. (U.S. Government Printing Office, Supt. of
Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year:
54,7740,1989

MSHA STANDARD:air-CL 2 mg/m3
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
3,233,1971

OSHA PEL (Gen Indu):8H TWA 2 mg/m3
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1910.1000,1994

OSHA PEL (Construc):8H TWA 2 mg/m3
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1926.55,1994

OSHA PEL (Shipyard):8H TWA 2 mg/m3
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1915.1000,1993

OSHA PEL (Fed Cont):8H TWA 2 mg/m3
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
41,50-204.50,1994

*** OCCUPATIONAL EXPOSURE LIMITS ***

OEL-AUSTRALIA:TWA 2 mg/m3 JAN 1993

OEL-BELGIUM:STEL 2 mg/m3 JAN 1993

OEL-DENMARK:TWA 2 mg/m3 JAN 1993

OEL-FINLAND:TWA 2 mg/m3 JAN 1993

OEL-FRANCE:TWA 2 mg/m3 JAN 1993

OEL-GERMANY:TWA 2 mg/m3 JAN 1993

OEL-JAPAN:STEL 2 mg/m3 JAN 1993

OEL-THE NETHERLANDS:TWA 2 mg/m3 JAN 1993

OEL-THE PHILIPPINES:TWA 2 mg/m3 JAN 1993

OEL-SWEDEN:TWA 2 mg/m3 JAN 1993

OEL-SWITZERLAND:TWA 2 mg/m3;STEL 4 mg/m3 JAN 1993

OEL-THAILAND:TWA 2 mg/m3 JAN 1993

OEL-TURKEY:TWA 2 mg/m3 JAN 1993

OEL-UNITED KINGDOM:TWA 2 mg/m3;STEL 2 mg/m3 JAN 1993

OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV

OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV

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

NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
NIOSH REL TO SODIUM HYDROXIDE-air:CL 2 mg/m3/15M
REFERENCE :
NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of
Health, Education, and Welfare, Reports and Memoranda.
Volume(issue)/page/year: DHHS #92-100,1992

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 69070
No. of Facilities: 112525 (estimated)
No. of Industries: 359
No. of Occupations: 192
No. of Employees: 1122583 (estimated)

NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - X3782
No. of Facilities: 21989 (estimated)
No. of Industries: 167
No. of Occupations: 120
No. of Employees: 370582 (estimated)
No. of Female Employees: 137156 (estimated)

NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 69070
No. of Facilities: 133757 (estimated)
No. of Industries: 426
No. of Occupations: 246
No. of Employees: 2819743 (estimated)
No. of Female Employees: 995960 (estimated)

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

EPA GENETOX PROGRAM 1988, Negative: Cell transform.-SA7/SHE

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, 1994: Alkaline dusts, 7401

NIOSH Analytical Method, 1994: Alkaline dusts, 7401


*** END OF RECORD ***
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