NILE
CHEMICALS
NILE
CHEMICALS
Synonyms: Caustic soda; lye; sodium hydroxide solid
CAS No.: 1310-73-2
Molecular Weight: 40.00
Chemical Formula: NaOH
Product Codes:191159
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Sodium Hydroxide 1310-73-2 99 - 100% Yes
Inhalation: Severe irritant. Effects from inhalation of dust or mist vary
from mild irritation to serious damage of the upper respiratory tract, depending
on severity of exposure. Symptoms may include sneezing, sore throat or runny
nose. Severe pneumonitis may occur.
Ingestion: Corrosive! Swallowing may cause severe burns of mouth, throat,
and stomach. Severe scarring of tissue and death may result. Symptoms may
include bleeding, vomiting, diarrhea, fall in blood pressure. Damage may appear
days after exposure.
Skin Contact: Corrosive! Contact with skin can cause irritation or severe
burns and scarring with greater exposures.
Eye Contact: Corrosive! Causes irritation of eyes, and with greater
exposures it can cause burns that may result in permanent impairment of vision,
even blindness.
Chronic Exposure: Prolonged contact with dilute solutions or dust has a
destructive effect upon 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: DO NOT INDUCE VOMITING! Give large quantities of water or milk
if available. Never give anything by mouth to an unconscious person. Get medical
attention immediately.
Skin Contact: Immediately flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes. Call a physician,
immediately. Wash clothing before reuse.
Eye Contact: Immediately flush eyes with plenty of water for at least 15
minutes, lifting lower and upper eyelids occasionally. Get medical attention
immediately.
Note to Physician: Perform endoscopy in all cases of suspected sodium
hydroxide ingestion. In cases of severe esophageal corrosion, the use of
therapeutic doses of steroids should be considered. General supportive measures
with continual monitoring of gas exchange, acid-base balance, electrolytes, and
fluid intake are also required.
Fire: Not considered to be a fire hazard. Hot or
molten material can react violently with water.
Can react with certain metals, such as aluminum, to generate flammable hydrogen
gas.
Explosion: Not considered to be an explosion hazard.
Fire Extinguishing Media: Use any means suitable for extinguishing
surrounding fire. Adding water to caustic solution generates large amounts of
heat.
Special Information: 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. Wear appropriate personal protective equipment as specified in Section 8.
Keep in a tightly closed container. Protect from physical damage. Store in a cool, dry, ventilated area away from sources of heat, moisture and incompatibilities. Always add the caustic to water while stirring; never the reverse. 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. Do not store with aluminum or magnesium. Do not mix with acids or organic materials.
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: Wear impervious protective clothing, including boots,
gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact.
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 pellets or flakes.
Odor: Odorless.
Solubility: 111 g/100 g of water.
Specific Gravity: 2.13
pH: 13 - 14 (0.5% soln.)
% Volatiles by volume @ 21C (70F): 0
Boiling Point: 1390C (2534F)
Melting Point: 318C (604F)
Vapor Density (Air=1): > 1.0
Vapor Pressure (mm Hg): Negligible.
Evaporation Rate (BuAc=1): No information found.
Stability: Stable under ordinary conditions of use
and storage. Very hygroscopic. Can slowly pick up moisture from air and react
with carbon dioxide from air to form sodium carbonate.
Hazardous Decomposition Products: Sodium oxide. Decomposition by reaction
with certain metals releases flammable and explosive hydrogen gas.
Hazardous Polymerization: Will not occur.
Incompatibilities: Sodium hydroxide in contact with acids and organic
halogen compounds, especially trichloroethylene, may causes violent reactions.
Contact with nitromethane and other similar nitro compounds causes formation of
shock-sensitive salts. Contact with metals such as aluminum, magnesium, tin, and
zinc cause formation of flammable hydrogen gas. Sodium hydroxide, even in fairly
dilute solution, reacts readily with various sugars to produce carbon monoxide.
Precautions should be taken including monitoring the tank atmosphere for carbon
monoxide to ensure safety of personnel before vessel entry.
Conditions to Avoid: Moisture, dusting and incompatibles.
Irritation data: skin, rabbit: 500 mg/24H severe; eye rabbit: 50 ug/24H severe; investigated as a mutagen.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Sodium Hydroxide (1310-73-2) No No None
Environmental Fate: No information found.
Environmental Toxicity: No information found.
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: SODIUM HYDROXIDE, SOLID
Hazard Class: 8
UN/NA: UN1823
Packing Group: II
Information reported for product/size: 300LB
International (Water, I.M.O.)
-----------------------------
Proper Shipping Name: SODIUM HYDROXIDE, SOLID
Hazard Class: 8
UN/NA: UN1823
Packing Group: II
Information reported for product/size: 300LB
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