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NILE CHEMICALS
Synonyms: Caustic potash flakes
CAS No.: 1310-58-3
Molecular Weight: 56.11
Chemical Formula: KOH
Product Codes:: 161170
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------
Potassium Hydroxide 1310-58-3 85 - 90% Yes
Water 7732-18-5 10 - 15% No
Inhalation: Severe irritant. Effects from inhalation of dust or mist vary
from mild irritation to serious damage of the upper respiratory tract, depending
on the severity of exposure. Symptoms may include coughing, sneezing, damage to
the nasal or respiratory tract. High concentrations can cause lung damage.
Ingestion: Toxic! Swallowing may cause severe burns of mouth, throat and
stomach. Other symptoms may include vomiting, diarrhea. Severe scarring of
tissue and death may result. Estimated lethal dose: 5 grams.
Skin Contact: Corrosive! Contact with skin can cause irritation or severe
burns and scarring with greater exposures.
Eye Contact: Highly Corrosive! Causes irritation of eyes with tearing,
redness, swelling. Greater exposures cause severe burns with possible blindness
resulting.
Chronic Exposure: Prolonged contact with dilute solutions or dust of
potassium hydroxide has a destructive effect on tissue.
Aggravation of Pre-existing Conditions: Persons with pre-existing skin
disorders or eye problems or impaired respiratory function may be more
susceptible to the effects of the substance.
Inhalation: Remove to fresh air. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen. Call a
physician.
Ingestion: If swallowed, DO NOT INDUCE VOMITING. Give large quantities of
water. Never give anything by mouth to an unconscious person. Get medical
attention immediately.
Skin Contact: In case of contact, immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical
attention immediately.
Eye Contact: Immediately flush eyes with plenty of water for at least 15
minutes, lifting lower and upper eyelids occasionally. Get medical attention
immediately.
Fire: Not combustible, but contact with water or
moisture may generate enough heat to ignite combustibles.
Explosion: Can react with chemically reactive metals such as aluminum,
zinc, magnesium, copper, etc. to release hydrogen gas which can form explosive
mixtures with air.
Fire Extinguishing Media: Use any means suitable for extinguishing
surrounding fire.
Special Information: Solution process causes formation of corrosive
mists. Hot or molten material can react violently with water. In the event of a
fire, wear full protective clothing and NIOSH-approved self-contained breathing
apparatus with full facepiece operated in the pressure demand or other positive
pressure mode.
Ventilate area of leak or spill. Keep unnecessary and unprotected people away from area of spill.
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate from incompatible substances. Protect from moisture. Addition to water releases heat which can result in violent boiling and spattering. Always add slowly and in small amounts. Never use hot water. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Airborne Exposure Limits: - OSHA Permissible
Exposure Limit (PEL):
2 mg/m3 Ceiling
- ACGIH Threshold Limit Value (TLV):
2 mg/m3 Ceiling
Ventilation System: A system of local and/or general exhaust is
recommended to keep employee exposures below the Airborne Exposure Limits. Local
exhaust ventilation is generally preferred because it can control the emissions
of the contaminant at its source, preventing dispersion of it into the general
work area. Please refer to the ACGIH document, Industrial Ventilation, A
Manual of Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved): If the exposure limit is exceeded
and engineering controls are not feasible, a half facepiece particulate
respirator (NIOSH type N95 or better filters) may be worn for up to ten times
the exposure limit or the maximum use concentration specified by the appropriate
regulatory agency or respirator supplier, whichever is lowest.. A full-face
piece particulate respirator (NIOSH type N100 filters) may be worn up to 50
times the exposure limit, or the maximum use concentration specified by the
appropriate regulatory agency, or respirator supplier, whichever is lowest. If
oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are present,
use a NIOSH type R or P filter. For emergencies or instances where the exposure
levels are not known, use a full-facepiece positive-pressure, air-supplied
respirator. WARNING: Air-purifying respirators do not protect workers in
oxygen-deficient atmospheres.
Skin Protection: Rubber or neoprene gloves and additional protection
including impervious boots, apron, or coveralls, as needed in areas of unusual
exposure.
Eye Protection: Use chemical safety goggles and/or a full face shield
where splashing is possible. Maintain eye wash fountain and quick-drench
facilities in work area.
Appearance: White deliquescent solid
Odor: Odorless.
Solubility: 52.8% in water @ 20C (68F)
Specific Gravity: 2.04
pH: 13.5 (0.1 molar solution)
% Volatiles by volume @ 21C (70F): 0
Boiling Point: 1320C (2408F)
Melting Point: 360C (680F)
Vapor Density (Air=1): No information found.
Vapor Pressure (mm Hg): 1.0 @ 714C (1317F)
Evaporation Rate (BuAc=1): No information found.
Stability: Stable under ordinary conditions of use
and storage.
Hazardous Decomposition Products: Carbon monoxide when reacting with
carbohydrates, and hydrogen gas when reacting with aluminum, zinc and tin.
Thermal oxidation can produce toxic fumes of potassium oxide (K2O).
Hazardous Polymerization: Will not occur.
Incompatibilities: Contact with water, acids, flammable liquids and
organic halogen compounds, especially trichloroethylene, may cause fire or
explosion. Contact with nitromethane and other similar nitro compounds cause
formation of shock sensitive salts. Contact with metals such as aluminum, tin
and zinc causes formation of flammable hydrogen gas.
Conditions to Avoid: Heat, moisture, incompatibles.
For potassium hydroxide: Oral rat LD50: 273 mg/kg; Investigated as a mutagen. Skin Irritation Data (std Draize, 50 mg/24 H): Human, Severe; Rabbit, Severe. Eye Irritation Data(Rabbit, non-std test,1 mg/24 H, rinse): Moderate.
--------\Cancer Lists\-----------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Potassium Hydroxide (1310-58-3) No No None
Water (7732-18-5) No No None
Environmental Fate: No information found.
Environmental Toxicity: Potassium Hydroxide: TLm: 80 ppm/Mosquito fish/
24 hr./ Fresh water
Whatever cannot be saved for recovery or recycling should be handled as hazardous waste and sent to a RCRA approved waste facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
Domestic (Land, D.O.T.)
-----------------------
Proper Shipping Name: POTASSIUM HYDROXIDE, SOLID
Hazard Class: 8
UN/NA: UN1813
Packing Group: II
Information reported for product/size: 110LB
International (Water, I.M.O.)
-----------------------------
Proper Shipping Name: POTASSIUM HYDROXIDE, SOLID
Hazard Class: 8
UN/NA: UN1813
Packing Group: II
Information reported for product/size: 110LB
International (Air, I.C.A.O.)
-----------------------------
Proper Shipping Name: POTASSIUM HYDROXIDE, SOLID
Hazard Class: 8
UN/NA: UN1813
Packing Group: II
Information reported for product/size: 110LB
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