The Registry of Toxic Effects of Chemical Substances

Calcium hydroxide

RTECS #: EW2800000

CAS #: 1305-62-0

UPDATE: November 2004 MW: 74.10 MF: CaH2O2


NOTE:

TABLE OF CONTENTS:
  1. SYNONYMS:
  2. SKIN AND EYE IRRITATION DATA:
  3. MUTATION DATA:
  4. ACUTE TOXICITY DATA:
  5. REVIEWS:
  6. STANDARDS AND REGULATIONS:
  7. NIOSH DOCUMENTATION AND SURVEILLANCE:
  8. STATUS IN FEDERAL AGENCIES:
  9. REFERENCES:

SYNONYMS:

  1. Bell mine
  2. Biocalc
  3. Calcium hydrate
  4. Calvit
  5. Carboxide
  6. Calcium hydroxide (ACGIH:OSHA)
  7. Calcium dihydroxide
  8. Hydrated lime
  1. Kalkhydrate
  2. Kemikal
  3. Limbux
  4. Lime milk
  5. Lime water
  6. Milk of lime
  7. Slaked lime


SKIN AND EYE IRRITATION DATA AND REFERENCES:

ROUTE/
ORGANISM 		DOSE
EFFECT

 REFERENCE
eye
rabbit 		10 mg severe TXAPA9 55,501,1980


MUTATION DATA AND REFERENCES:

SYSTEM TEST ROUTE/
ORGANISM/
TISSUE 		DOSE REFERENCE
cytogenetic analysis rat
Ascites tumor 		1,200 mg/kg GANNA2 54,155,1963


REPRODUCTIVE EFFECTS DATA AND REFERENCES:

ROUTE/
ORGANISM 		DOSE
EFFECT

 REFERENCE
N/R
 N/R N/R N/R


TUMORIGENIC DATA AND REFERENCES:

ROUTE/
ORGANISM 		DOSE
EFFECT

 REFERENCE
N/R
 N/R N/R N/R


ACUTE TOXICITY DATA AND REFERENCES:

ROUTE/
ORGANISM 		DOSE
EFFECT

 REFERENCE
oral
mouse 		lethal dose (50 percent kill): 7,300 mg/kg N/R YKYUA6 32,1477,1981
oral
rat 		lethal dose (50 percent kill): 7,340 mg/kg N/R AIHAAP 30,470,1969


OTHER MULTIPLE DOSE DATA AND REFERENCES:

ROUTE/
ORGANISM 		DOSE
EFFECT

 REFERENCE
N/R
 N/R N/R N/R


REVIEWS:

ORGANIZATION STANDARD
REFERENCE
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value time-weighted average 5 mg/m3 DTLVS* TLV/BEI,2003


STANDARDS AND REGULATIONS:

ORGANIZATION STANDARD
REFERENCE
Environmental Protection Agency (EPA) Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC 54,7740,1989
Environmental Protection Agency (EPA) Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1998 STATUS OF PESTICIDES: Cancelled RBREV* -,326,1998
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) 8 hour time-weighted average 15 mg/m3, total dust CFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) 8 hour time-weighted average 5 mg/m3, respirable fraction CFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) 8 hour time-weighted average 15 mg/m3, total dust CFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) 8 hour time-weighted average 5 mg/m3, respirable fraction CFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) 8 hour time-weighted average 15 mg/m3, total dust CFRGBR 29,1915.1000,1993
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) 8 hour time-weighted average 5 mg/m3, respirable fraction CFRGBR 29,1915.1000,1993
Occupational Exposure Limit - AUSTRALIA time-weighted average 5 mg/m3, JAN1993
Occupational Exposure Limit - AUSTRIA MAK 5 mg/m3, JAN1999
Occupational Exposure Limit - BELGIUM time-weighted average 5 mg/m3, JAN1993
Occupational Exposure Limit - DENMARK time-weighted average 5 mg/m3, JAN1999
Occupational Exposure Limit - FINLAND time-weighted average 5 mg/m3, JAN1999
Occupational Exposure Limit - FRANCE VME 5 mg/m3, JAN1999
Occupational Exposure Limit - NORWAY time-weighted average 5 mg/m3, JAN1999
Occupational Exposure Limit - POLAND MAC(time-weighted average) 2 mg/m3, JAN1999
Occupational Exposure Limit - SWITZERLAND MAK- week 5 mg/m3, JAN1999
Occupational Exposure Limit - THE NETHERLANDS MAC-TGG 5 mg/m3, 2003
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN, KOREA American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value;

time-weighted average 5 mg/m3
Occupational Exposure Limit IN NEW ZEALAND, SINGAPORE, VIETNAM American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value
time-weighted average 5 mg/m3


NIOSH DOCUMENTATION AND SURVEILLANCE:

ORGANIZATION STANDARD or SURVEY
REFERENCE
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO CALCIUM HYDROXIDE-air 10 hour time-weighted average 5 mg/m3 NIOSH* DHHS #95-121,1995
National Occupational Hazard Survey 1974 National Occupational Hazard Survey 1974: Hazard Code: 15743;
Number of Industries 187;
Total Number of Facilities 15,315;
Number of Occupations 115;
Total Number of Employees Exposed 226,292
National Occupational Exposure Survey 1983 National Occupational Exposure Survey 1983: Hazard Code: 15743;
Number of Industries 167;
Total Number of Facilities 20,988;
Number of Occupations 131;
Total Number of Employees Exposed 360,007;
Total Number of Female Employees Exposed 39,330


STATUS IN FEDERAL AGENCIES:

ORGANIZATION
REFERENCE
EPA TSCA Section 8(b) CHEMICAL INVENTORY
NIOSH Analytical Method, 1994: Calcium and compounds, 7020


REFERENCES:

CODEN
REFERENCE
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958-
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402)
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996
FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936-
GANNA2 Gann. Japanese Journal of Cancer Research. (Tokyo, Japan) V.1-75, 1907-84. For publisher information, see JJCREP.
NIOSH* National Institute of Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda.
RBREV* Status of Pesticides in Registration, Reregistration, and Special Review (Rainbow Report), Special Review and Reregistration Division Office of Pesticide Programs U.S. Environmental Protection Agency, 401 M. Street, S.W., Washington, D.C. 20460, Spring 1998
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959-
YKYUA6 Yakkyoku. Pharmacy. (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo, Japan) V.1- 1950-

NIOSH PROFILE (SEWAGE TREATMENT), FIRL, 4/78

FDA-over the counter drug

RTECS Compound Description:
   Agricultural Chemical
   Mutagen
   Primary Irritant

 Click Here for Additional Information about RTECS