Material Safety Data
Sheet
Potassium Hydroxide
ACC# 19431
|
Section 1 - Chemical Product and Company
Identification |
MSDS Name: Potassium Hydroxide
Catalog Numbers: S71978, S71979, S71979-1, S71979-2,
P246-3, P250-1, P250-10, P250-3, P250-50, P250-500, P250-50LC, P251-3, P251-50,
P251-500, P251-50KG, P25812, P258212, P25850, P25850LC, PFP25050LC, S71977,
S72221D
Synonyms: Caustic potash, Lye, Potassium hydrate
Company Identification:
Fisher Scientific
1
Reagent Lane
Fair Lawn, NJ
07410
For information, call: 201-796-7100
Emergency
Number: 201-796-7100
For CHEMTREC assistance, call: 800-424-9300
For International CHEMTREC assistance, call: 703-527-3887
|
Section 2 -
Composition, Information on Ingredients |
| CAS# |
Chemical Name |
Percent |
EINECS/ELINCS |
| 1310-58-3 |
Potassium hydroxide (KOH) |
100.0 |
215-181-3 |
Hazard
Symbols: C
Risk Phrases: 22 35
|
Section 3 - Hazards
Identification |
EMERGENCY OVERVIEW
Appearance: white or yellow. Danger! Corrosive.
Water-Reactive. Harmful if swallowed. Causes severe eye and skin burns. Causes
severe digestive and respiratory tract burns.
Target Organs:
None.
Potential Health
Effects
Eye: Causes severe eye burns. May
cause irreversible eye injury. Contact may cause ulceration of the conjunctiva
and cornea. Eye damage may be delayed.
Skin: Causes skin
burns. May cause deep, penetrating ulcers of the skin.
Ingestion: Harmful if swallowed. May cause circulatory
system failure. May cause perforation of the digestive tract. Causes severe
digestive tract burns with abdominal pain, vomiting, and possible death.
Inhalation: Harmful if inhaled. Irritation may lead to
chemical pneumonitis and pulmonary edema. Causes severe irritation of upper
respiratory tract with coughing, burns, breathing difficulty, and possible coma.
Chronic: Prolonged or repeated skin contact may cause
dermatitis. Prolonged or repeated eye contact may cause conjunctivitis.
|
Section 4 - First Aid
Measures |
Eyes: Immediately flush eyes with plenty of water
for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get
medical aid immediately.
Skin: Get medical aid immediately.
Immediately flush skin with plenty of soap and water for at least 15 minutes
while removing contaminated clothing and shoes. Discard contaminated clothing in
a manner which limits further exposure.
Ingestion: Do NOT
induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or
water. Never give anything by mouth to an unconscious person. Get medical aid
immediately.
Inhalation: Get medical aid immediately.
Remove from exposure to fresh air immediately. If breathing is difficult, give
oxygen. If breathing has ceased apply artificial respiration using oxygen and a
suitable mechanical device such as a bag and a mask.
Notes to
Physician: Treat symptomatically and supportively.
|
Section 5 - Fire
Fighting Measures |
General
Information: As in any fire, wear a self-contained breathing apparatus
in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective
gear. Use water with caution and in flooding amounts. Contact with moisture or
water may generate sufficient heat to ignite nearby combustible materials.
Extinguishing Media: For small fires, use dry chemical,
carbon dioxide, water spray or alcohol-resistant foam.
|
Section 6 -
Accidental Release Measures |
General
Information: Use proper personal protective equipment as indicated in
Section 8.
Spills/Leaks: Vacuum or sweep up material and
place into a suitable disposal container. Avoid generating dusty conditions.
|
Section 7 - Handling
and Storage |
Handling: Wash thoroughly after handling. Use with
adequate ventilation. Do not allow water to get into the container because of
violent reaction. Do not get in eyes, on skin, or on clothing. Do not ingest or
inhale.
Storage: Store in a tightly closed container. Store
in a cool, dry, well-ventilated area away from incompatible substances. Keep
away from strong acids. Keep away from water. Keep away from metals. Keep away
from flammable liquids. Keep away from organic halogens.
|
Section 8 - Exposure
Controls, Personal Protection |
Engineering
Controls: Use adequate general or local exhaust ventilation to keep
airborne concentrations below the permissible exposure limits.
Exposure Limits
| Chemical Name |
ACGIH |
NIOSH |
OSHA -
Final PELs |
| Potassium hydroxide (KOH) |
C 2 mg/m3 |
none listed |
none
listed |
OSHA Vacated PELs:
Potassium hydroxide (KOH): C 2 mg/m3
Personal Protective
Equipment
Eyes: Wear safety glasses and chemical
goggles or face shield if handling liquids.
Skin: Wear
appropriate gloves to prevent skin exposure.
Clothing: Wear
appropriate protective clothing to prevent skin exposure.
Respirators: Follow the OSHA respirator regulations found in 29CFR
1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN
149 approved respirator when necessary.
|
Section 9 - Physical
and Chemical Properties |
Physical State:
Solid
Appearance: white or yellow
Odor: odorless
pH: 13.5 (0.1M solution)
Vapor Pressure: Not available.
Vapor Density: Not available.
Evaporation Rate:Not
available.
Viscosity: Not available.
Boiling Point: 2408
deg F
Freezing/Melting Point:680 deg F
Autoignition
Temperature: Not applicable.
Flash Point: Not applicable.
Decomposition Temperature:Not available.
NFPA Rating:
(estimated) Health: 3; Flammability: 0; Reactivity: 1
Explosion Limits,
Lower:Not available.
Upper: Not available.
Solubility:
Soluble in water
Specific Gravity/Density:2.04
Molecular
Formula:KOH
Molecular Weight:56.1047
|
Section 10 -
Stability and Reactivity |
Chemical
Stability: Stable. Readily absorbs carbon dioxide and moisture from the air
and deliquesces.
Conditions to Avoid: Incompatible materials,
moisture, contact with water, acids, metals.
Incompatibilities with Other
Materials: Generates large amounts of heat when in contact with water and
may steam and splatter. Reacts with chlorine dioxide, nitrobenzene,
nitromethane, nitrogen trichloride, peroxidized tetrahydrofuran,
2,4,6-trinitrotoluene, bromoform+ crown ethers, acids alcohols, sugars,
germanium cyclopentadiene, maleic dicarbide. Corrosive to metals such as
aluminum, tin, and zinc to cause formation of flammable hydrogen gas.
Hazardous Decomposition Products: Oxides of potassium.
Hazardous Polymerization: Has not been reported.
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Section 11 -
Toxicological Information |
RTECS#:
CAS# 1310-58-3: TT2100000
LD50/LC50:
CAS#
1310-58-3:
Draize test, rabbit, skin: 50 mg/24H Severe;
Oral, rat: LD50 =
273 mg/kg;
Carcinogenicity:
CAS# 1310-58-3: Not listed by
ACGIH, IARC, NIOSH, NTP, or OSHA.
Epidemiology: No data available.
Teratogenicity: No information reported.
Reproductive
Effects: No data available.
Neurotoxicity: No data available.
Mutagenicity: No data available.
Other Studies: No data
available.
|
Section 12 -
Ecological Information |
Ecotoxicity:
Fish: Mosquito Fish: LC50 = 80.0 mg/L; 24 Hr.; Unspecified No data available.
Environmental: No information found.
Physical: No
information found.
Other: No information available.
|
Section 13 - Disposal
Considerations |
Chemical waste generators
must determine whether a discarded chemical is classified as a hazardous waste.
US EPA guidelines for the classification determination are listed in 40 CFR
Parts 261.3. Additionally, waste generators must consult state and local
hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.
|
Section 14 -
Transport Information |
|
US
DOT |
IATA |
RID/ADR |
IMO |
Canada
TDG |
| Shipping Name: |
POTASSIUM HYDROXIDE, SOLID |
|
|
|
POTASSIUM HYDROXIDE |
| Hazard Class: |
8 |
|
|
|
8(9.2) |
| UN Number: |
UN1813 |
|
|
|
UN1813 |
| Packing Group: |
II |
|
|
|
II |
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Section 15 -
Regulatory Information |
US
FEDERAL
TSCA
CAS# 1310-58-3 is listed on the TSCA
inventory.
Health & Safety Reporting List
None of the
chemicals are on the Health & Safety Reporting List.
Chemical Test
Rules
None of the chemicals in this product are under a Chemical Test
Rule.
Section 12b
None of the chemicals are listed under TSCA
Section 12b.
TSCA Significant New Use Rule
None of the chemicals
in this material have a SNUR under TSCA.
SARA
Section 302
(RQ)
CAS# 1310-58-3: final RQ = 1000 pounds (454 kg)
Section 302
(TPQ)
None of the chemicals in this product have a TPQ.
SARA
Codes
CAS # 1310-58-3: acute, reactive.
Section 313
No
chemicals are reportable under Section 313.
Clean Air Act:
This
material does not contain any hazardous air pollutants. This material does not
contain any Class 1 Ozone depletors. This material does not contain any Class 2
Ozone depletors.
Clean Water Act:
CAS# 1310-58-3 is listed as a
Hazardous Substance under the CWA. None of the chemicals in this product are
listed as Priority Pollutants under the CWA. None of the chemicals in this
product are listed as Toxic Pollutants under the CWA.
OSHA:
None
of the chemicals in this product are considered highly hazardous by OSHA.
STATE
CAS# 1310-58-3 can be found on the following state right to
know lists: California, New Jersey, Florida, Pennsylvania, Minnesota,
Massachusetts.
California No Significant Risk Level: None of the chemicals
in this product are listed. European/International
Regulations
European Labeling in Accordance with EC
Directives
Hazard Symbols:
C
Risk Phrases:
R 22
Harmful if swallowed.
R 35 Causes severe burns.
Safety
Phrases:
S 26 In case of contact with eyes, rinse immediately
with
plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective
clothing, gloves
and eye/face protection.
S 45 In case of accident or if
you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 1310-58-3: 1
Canada
CAS# 1310-58-3 is listed on Canada's DSL List. CAS#
1310-58-3 is listed on Canada's DSL List.
This product has a WHMIS
classification of D1B, E.
CAS# 1310-58-3 is listed on Canada's Ingredient
Disclosure List.
Exposure Limits
CAS# 1310-58-3: OEL-AUSTRALIA:TWA
2 mg/m3 OEL-BELGIUM:STEL 2 mg/m3
OEL-DENMARK:TWA 2 mg/m3 OEL-FINLAND:TWA 2
mg/m3 OEL-FRANCE:STEL 2 m
g/m3 OEL-JAPAN:STEL 2 mg/m3 OEL-THE
NETHERLANDS:TWA 2 mg/m3 OEL-SWI
TZERLAND:TWA 2 mg/m3 OEL-UNITED KINGDOM:TWA 2
mg/m3;STEL 2 mg/m3 OEL
IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEAL
AND, SINGAPORE, VIETNAM check ACGI TLV