Potassium hydroxide

Modify Date: 2024-01-02 20:19:03

Potassium hydroxide Structure
Potassium hydroxide structure
Common Name Potassium hydroxide
CAS Number 1310-58-3 Molecular Weight 56.106
Density 1.450 g/mL at 20 °C Boiling Point 1320°C
Molecular Formula HKO Melting Point 361 °C(lit.)
MSDS Chinese USA Flash Point 52 °F
Symbol GHS05 GHS07
GHS05, GHS07
Signal Word Danger

 Names

Name potassium hydroxide
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.450 g/mL at 20 °C
Boiling Point 1320°C
Melting Point 361 °C(lit.)
Molecular Formula HKO
Molecular Weight 56.106
Flash Point 52 °F
Exact Mass 55.966446
PSA 23.06000
Vapour Pressure 1 mm Hg ( 719 °C)
Index of Refraction n20/D 1.421
Water Solubility soluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TT2100000
CHEMICAL NAME :
Potassium hydroxide
CAS REGISTRY NUMBER :
1310-58-3
LAST UPDATED :
199712
DATA ITEMS CITED :
29
MOLECULAR FORMULA :
H-K-O
MOLECULAR WEIGHT :
56.11
WISWESSER LINE NOTATION :
KA Q

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Human
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
Rinsed with water
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - guinea pig
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
273 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :
Cytogenetic analysis
TEST SYSTEM :
Rodent - hamster Ovary
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 *** 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:STEL 2 mg/m3 JAN 1993 OEL-JAPAN:STEL 2 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 2 mg/m3 JAN 1993 OEL-SWITZERLAND: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 POTASSIUM HYDROXIDE-air:CL 2 mg/m3 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 - 60440 No. of Facilities: 80620 (estimated) No. of Industries: 340 No. of Occupations: 181 No. of Employees: 1081553 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X3783 No. of Facilities: 543 (estimated) No. of Industries: 11 No. of Occupations: 16 No. of Employees: 6722 (estimated) No. of Female Employees: 2651 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 60440 No. of Facilities: 74278 (estimated) No. of Industries: 346 No. of Occupations: 221 No. of Employees: 1959889 (estimated) No. of Female Employees: 797390 (estimated)

 Safety Information

Symbol GHS05 GHS07
GHS05, GHS07
Signal Word Danger
Hazard Statements H290-H302-H314
Precautionary Statements P280-P301 + P312 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
Personal Protective Equipment Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes C: Corrosive;F: Flammable;T: Toxic;Xi: Irritant;
Risk Phrases R22;R35
Safety Phrases S7-S16-S36/37-S45-S36/37/39-S26
RIDADR UN 2924 3/PG 2
WGK Germany 1
RTECS TT2100000
Packaging Group II
Hazard Class 8
HS Code 2815200000

 Customs

HS Code 2815200000

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 Synonyms

kizutasaponin K10
Potassium h
Potassium hydroxide
EINECS 215-181-3
lpotassum hydroxide
potassium hydroxyde
potassium hyroxide
potassium hydroxid
Caustic potash
MFCD00003553
Cauloside D