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SODIUM HYDROXIDE SOLUTIONS AND CONCENTRATES
MSDS Number: S4040 --- Effective Date: 08/20/98
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1. Product Identification
Synonyms: Sodium hydroxide, 0.2 to 2.0 normal volumetric
solutions; DILUT-IT(R) analytical concentrates; Sodium Hydroxide
Concentrate Solution StandARd(R)
CAS No.: 1310-73-2
Molecular Weight: 40.00
Chemical Formula: NaOH in water
Product Codes:
J.T. Baker: 0328, 0329, 4687, 4691, 4715, 5633, 5634, 5635, 5636,
5638, 5665, 5667
Mallinckrodt: 4693, H361, H364, H377, H380, H635, V027
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2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------- ---------
Sodium Hydroxide 1310-73-2 0.8 - 8% Yes
Water 7732-18-5 92 - 99% No
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3. Hazards Identification
Emergency Overview
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DANGER! CORROSIVE. HARMFUL IF SWALLOWED OR INHALED. CAUSES BURNS
TO ANY AREA OF CONTACT. REACTS WITH WATER, ACIDS AND OTHER
MATERIALS.
J.T. Baker SAF-T-DATA(tm) Ratings (Provided here for your
convenience)
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Health Rating: 2 - Moderate
Flammability Rating: 0 - None
Reactivity Rating: 1 - Slight
Contact Rating: 3 - Severe (Corrosive)
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT & APRON; VENT
HOOD; PROPER GLOVES
Storage Color Code: White Stripe (Store Separately)
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Potential Health Effects
----------------------------------
The health effects from exposure to diluted forms of this
chemical are not well documented. They are expected to be less
severe than those for concentrated forms which are referenced in
the descriptions below.
Inhalation:
Severe irritant. Effects from inhalation of 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 appears 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.
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4. First Aid Measures
Inhalation:
Remove to fresh air. Get medical attention for any breathing
difficulty.
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:
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.
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5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard.
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:
Use protective clothing and breathing equipment appropriate for
the surrounding fire.
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6. Accidental Release Measures
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. Contain and
recover liquid when possible. Do not flush caustic residues to
the sewer. Residues from spills can be diluted with water,
neutralized with dilute acid such as acetic, hydrochloric or
sulfuric. Absorb neutralized caustic residue on clay, vermiculite
or other inert substance and package in a suitable container for
disposal. US Regulations (CERCLA) require reporting spills and
releases to soil, water and air in excess of reportable
quantities. The toll free number for the US Coast Guard National
Response Center is (800) 424-8802.
J. T. Baker NEUTRACIT(R)-2 or BuCAIM(R) caustic neutralizers are
recommended for spills of this product.
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7. Handling and Storage
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. Protect from freezing. 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 (vapors, liquid); observe all
warnings and precautions listed for the product. Do not store
with aluminum or magnesium. Do not mix with acids or organic
materials.
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8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
Sodium hydroxide:
-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, a half-face dust/mist
respirator 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 dust/mist respirator 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. 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.
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9. Physical and Chemical Properties
Physical data is displayed for a 5% solution of sodium hydroxide.
Appearance:
Clear, colorless solution.
Odor:
Odorless.
Solubility:
Miscible in water.
Density:
5% solution: 1.05
pH:
14.0
% Volatiles by volume @ 21C (70F):
No information found.
Boiling Point:
102C (216F) (5% solution)
Melting Point:
-4C (25F) (5% solution)
Vapor Density (Air=1):
No information found.
Vapor Pressure (mm Hg):
No information found.
Evaporation Rate (BuAc=1):
No information found.
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10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
No hazardous decomposition products.
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:
Heat, moisture, incompatibles.
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11. Toxicological Information
Sodium hydroxide: 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
Water (7732-18-5) No No None
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12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
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13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be
managed in an appropriate and approved waste facility. Although
not a listed RCRA hazardous waste, this material may exhibit one
or more characteristics of a hazardous waste and require
appropriate analysis to determine specific disposal requirements.
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.
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14. Transport Information
Domestic (Land, D.O.T.)
-----------------------
Proper Shipping Name: SODIUM HYDROXIDE SOLUTION
Hazard Class: 8
UN/NA: UN1824
Packing Group: II
Information reported for product/size: 208L
International (Water, I.M.O.)
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Proper Shipping Name: SODIUM HYDROXIDE SOLUTION
Hazard Class: 8
UN/NA: UN1824
Packing Group: II
Information reported for product/size: 208L
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15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Sodium Hydroxide (1310-73-2) Yes Yes Yes Yes
Water (7732-18-5) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Sodium Hydroxide (1310-73-2) Yes Yes No Yes
Water (7732-18-5) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Sodium Hydroxide (1310-73-2) No No No No
Water (7732-18-5) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Sodium Hydroxide (1310-73-2) 1000 No No
Water (7732-18-5) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: No Fire: No Pressure: No
Reactivity: No (Pure / Liquid)
Australian Hazchem Code: 2R
Poison Schedule: S5
WHMIS:
This MSDS has been prepared according to the hazard criteria of
the Controlled Products Regulations (CPR) and the MSDS contains
all of the information required by the CPR.
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16. Other Information
NFPA Ratings: Health: 3 Flammability: 0 Reactivity: 0
Label Hazard Warning:
DANGER! CORROSIVE. HARMFUL IF SWALLOWED OR INHALED. CAUSES BURNS
TO ANY AREA OF CONTACT. REACTS WITH WATER, ACIDS AND OTHER
MATERIALS.
Label Precautions:
Do not get in eyes, on skin, or on clothing.
Do not breathe mist.
Keep container closed.
Use only with adequate ventilation.
Wash thoroughly after handling.
Label First Aid:
If swallowed, give several glasses of water or milk to drink.
Vomiting may occur spontaneously, but DO NOT INDUCE! Never give
anything by mouth to an unconscious person. In case of contact,
immediately flush eyes or skin with plenty of water for at least
15 minutes while removing contaminated clothing and shoes. Wash
clothing before reuse. If inhaled, remove to fresh air. If not
breathing give artificial respiration. If breathing is difficult,
give oxygen. In all cases get medical attention immediately.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include:
10.
Disclaimer:
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Mallinckrodt Baker, Inc. provides the information contained
herein in good faith but makes no representation as to its
comprehensiveness or accuracy. This document is intended only as
a guide to the appropriate precautionary handling of the material
by a properly trained person using this product. Individuals
receiving the information must exercise their independent
judgment in determining its appropriateness for a particular
purpose. MALLINCKRODT BAKER, INC. MAKES NO REPRESENTATIONS OR
WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT
LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH
HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS.
ACCORDINGLY, MALLINCKRODT BAKER, INC. WILL NOT BE RESPONSIBLE FOR
DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.
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Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.)