MSDS Number: S4040 * * * * * Effective Date: 01/25/06 * * * * * Supercedes: 07/07/04
SODIUM HYDROXIDE SOLUTIONS
AND CONCENTRATES
1. Product Identification
Synonyms: Sodium hydroxide, 0.2 to 2.0 normal volumetric solutions;
DILUT-IT庐 analytical concentrates; Sodium Hydroxide Concentrate
Solution StandARd庐
CAS No.: 1310-73-2
Molecular Weight: 40.00
Chemical Formula: NaOH in water
Product Codes:
J.T. Baker: 0328, 0329, 0387, 0388, 0389, 0390, 3726, 4687, 4691, 4715,
5633, 5634, 5635, 5636, 5638, 5665, 5667
Mallinckrodt: 4693, H361, H380
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.
SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 3 - Severe
Flammability Rating: 0 - None
Reactivity Rating: 2 - Moderate
Contact Rating: 4 - Extreme (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庐-2 or BuCAIM庐 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 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.
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: 460LB
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: 460LB
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: 3.
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.)
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