SODIUM HYDROXIDE SOLUTIONS AND CONCENTRATES
MSDS Number: S4040 --- Effective Date: 08/20/98
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
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
3. Hazards Identification
Emergency Overview
--------------------------
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)
-----------------------------------------------------------------------------------------------------------
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.
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.
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.
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.
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.
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.
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.
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.
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
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
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.
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.)
-----------------------------
Proper Shipping Name: SODIUM HYDROXIDE SOLUTION
Hazard Class: 8
UN/NA: UN1824
Packing Group: II
Information reported for product/size: 208L
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.
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: Strategic Services Division
Phone Number: (314) 539-1600 (U.S.A.)