This Material Safety Data Sheet (MSDS) contains
information on the use and procedures for handling Caustic Soda.
There are data sheets on all the hazardous chemicals used in the
drilling industry. Data sheets must be supplied by the
manufacturer and/or supplier each time the chemical is introduced
into the workplace. See Subpart Z, Toxic and Hazardous Substances,
Hazard Communication: [29
MATERIAL SAFETY DATA SHEET
CAUSTIC SODA (NaOH)
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
TRADE NAME: CAUSTIC SODA (NaOH)
2. COMPOSITION, INFORMATION ON INGREDIENTS
UN/NA (PIN) No.: 1823
CHEMICAL CLASS: Bases, alkalies (inorganic).
APPLICATIONS: Oil well drilling fluid additive. pH modifier.
EMERGENCY TELEPHONE: 281-561-1600
SUPPLIER: Supplied by a Business Unit of M-I L.L.C.
P.O. Box 42842, Houston, Texas 77242-2842
See cover sheet for local supplier.
CONTACT PERSON: Sam Hoskin
INGREDIENT NAME: CAS No.:
CONTENTS : EPA RQ:
3. HAZARDS IDENTIFICATION
Sodium hydroxide 1310-73-2
1 000 lbs
4. FIRST AID MEASURES
DANGER! CAUSES EYE AND SKIN BURNS. Do not get in eyes or on
skin or clothing. Avoid breathing airborne product. Keep
container closed. Use only with adequate ventilation. Wash
thoroughly after handling. Avoid contact with water or
moisture, which may generate sufficient heat to ignite combustible
materials. This product is a white pellet or flake material.
Slippery when wet.
HEALTH HAZARDS, GENERAL:
Contact with this product is severely irritating to the eyes,
skin, and respiratory tract and may cause severe eye injury.
INHALATION: Severely irritating to the respiratory
tract if inhaled.
INGESTION: May cause burns in mucous membranes, throat, esophagus,
SKIN: Corrosive to skin.
EYES: Corrosive to eyes.
IARC: Not listed. OSHA: Not regulated. NTP: Not listed.
ROUTE OF ENTRY:
10296 - CAUSTIC SODA (NaOH)
Inhalation. Skin and/or eye contact.
Respiratory system, lungs. Skin. Eyes.
GENERAL: Persons seeking medical attention should carry a
copy of this MSDS with them.
5. FIRE FIGHTING MEASURES
INHALATION: Move the exposed person to fresh air at once.
Perform artificial respiration if breathing has stopped. Get
INGESTION: Drink a couple of glasses water or milk. Do NOT
induce vomiting unless directed to do so by a physician. Never
give anything by mouth to an unconscious person. Get medical
SKIN: Wash skin thoroughly with soap and water. Remove
contaminated clothing. Get medical attention if any discomfort
EYES: Promptly wash eyes with lots of water while lifting
the eye lids. Continue to rinse for at least 15 minutes. Get
medical attention if any discomfort continues.
AUTO IGNITION TEMP. (°F): N/D
6. ACCIDENTAL RELEASE MEASURES
FLAMMABILITY LIMIT - LOWER(%): N/D
FLAMMABILITY LIMIT - UPPER(%): N/D
Carbon dioxide (CO2). Dry chemicals. Foam.
SPECIAL FIRE FIGHTING PROCEDURES:
No specific fire fighting procedure given.
UNUSUAL FIRE AND EXPLOSION HAZARDS:
Upon contact with certain metals and water or moist air,
hydrogen gas is generated, forming explosive mixtures with air.
HAZARDOUS COMBUSTION PRODUCTS:
7. HANDLING AND STORAGE
Wear proper personal protective equipment (see MSDS Section
SPILL CLEAN-UP PROCEDURES:
Avoid generating and spreading of dust. Shovel into dry
containers. Cover and move the containers. Flush the area with
water. Do not contaminate drainage or waterways. Repackage or
recycle if possible.
8. EXPOSURE CONTROLS, PERSONAL PROTECTION
Avoid handling that causes dust to generate. Wear full
protective clothing for prolonged exposure and/or high
concentrations. Make eye wash and emergency shower available
at the work place. Wash hands often and change clothing when
needed. Provide good ventilation. Provide mechanical ventilation or
local exhaust ventilation.
Store at moderate temperatures in dry, well ventilated area.
Keep in original container.
|| OSHA PEL:
|| ACGIH TLV:
| INGREDIENT NAME:
|| CAS No.:
|| TWA: STEL:
|| TWA: STEL:
|| TWA: STEL:
| Sodium hydroxide
|| 2 C*
9. PHYSICAL AND CHEMICAL PROPERTIES
*C = Ceiling Limit
ENGINEERING CONTROLS: Use appropriate engineering controls
such as exhaust ventilation and process enclosure to reduce
air contamination and keep worker exposure below the applicable
VENTILATION: Supply natural or mechanical ventilation
adequate to exhaust airborne product and keep exposures below
the applicable limits.
RESPIRATORS: Use at least a NIOSH-approved N95 half-mask
disposable or reuseable particulate respirator. In work
environments containing oil mist/aerosol, use at least a
NIOSH-approved P95 half-mask disposable or reuseable particulate
PROTECTIVE GLOVES: Use gauntlet type rubber gloves.
EYE PROTECTION: Use tight-fitting goggles if dust is
generated. Wear splash-proof eye goggles to prevent any
possibility of eye contact.
PROTECTIVE CLOTHING: Wear appropriate clothing to prevent
any possibility of skin contact. Provide eyewash station and
HYGIENIC WORK PRACTICES: Wash promptly with soap and water
if skin becomes contaminated. Change work clothing daily if
there is any possibility of contamination.
APPEARANCE/PHYSICAL STATE: Pellets or flakes.
10. STABILITY AND REACTIVITY
ODOR: Odorless or no characteristic odor.
SOLUBILITY DESCRIPTION: Soluble in water.
BOILING POINT (°F, interval): 2530 PRESSURE: 760mmHg
MELT./FREEZ. POINT (°F, interval): 604
DENSITY/SPECIFIC GRAVITY (g/ml): 2.13 TEMPERATURE (°F): 68
BULK DENSITY: 133 lb/cu. ft.; 2131 kg/m3
VAPOR DENSITY (air=1): N/A
VAPOR PRESSURE: 42 mmHg TEMPERATURE (°F): 1832
pH-VALUE, DILUTED SOLUTION: 13 CONCENTRATION (%,M): 1%
STABILITY: Normally stable.
11. TOXICOLOGICAL INFORMATION
CONDITIONS TO AVOID: Reacts strongly with water. Avoid
contact with acids.
HAZARDOUS POLYMERIZATION: Will not polymerize.
POLYMERIZATION DESCRIPTION: Not relevant.
MATERIALS TO AVOID: Organochlorine solvents, nitro and
nitroso compounds, organic peroxides; aluminum, zinc, tin and
HAZARDOUS DECOMPOSITION PRODUCTS: No specific hazardous
decomposition products noted.
Component: Sodium hydroxide
12. ECOLOGICAL INFORMATION
24 hours. Eye. Rabbit. 1 mg Severe Irritation Corrosive
TOXIC DOSE - LD 50: 1350 mg/kg (skn-rbt)
24 hours. Skin. Rabbit. 500 mg Severe Irritation Corrosive
LDLo. Oral. Rabbit. 500 mg/kg Acute toxicity.
LC 50, 96 HRS, FISH, mg/l: 125 (Mosquitofish)
13. DISPOSAL CONSIDERATIONS
EC 50, 48 HRS, DAPHNIA, mg/l: 100
ACUTE AQUATIC TOXICITY:
This product passes the mysid shrimp toxicity test required
by the U.S. Environmental Protection Agency (EPA) Region VI
(Gulf of Mexico) NPDES Permit, which regulates offshore
discharge of drilling fluids, when tested in a standard drilling
fluid. Contact M-I's Environmental Affairs Department for more
This product is approved for use under the U.S. Environmental
Protection Agency (EPA) Region IX (California) General NPDES
Permit which regulates offshore discharges of drilling fluids.
Contact M-I's Environmental Affairs Department for more
14. TRANSPORT INFORMATION
This product, should it become a waste, is hazardous by U.S.
THIS CONTAINER MAY BE HAZARDOUS WHEN EMPTY. Empty containers
retain residues. All labeled precautions must be observed.
Recover and reclaim or recycle, if practical. Should this
product become a waste, dispose of in a permitted industrial
landfill. Ensure that containers are empty by RCRA criteria before disposal in a permitted industrial landfill.
LABEL FOR CONVEYANCE:
15. REGULATORY INFORMATION
PROPER SHIPPING DESCRIPTION II: Sodium hydroxide, solid, 8,
UN1823, PG II
GENERAL: RQ = 1000
EMERGENCY RESPONSE GUIDE No.: 154
UN/NA No.: 1823
U.S. DOT HAZARD LABEL: CORROSIVE (Black/white diam.) DOT17
U.S. DOT CLASS: Class 8 - Corrosive Material
U.S. DOT PACKING GROUP: II
U.S. DOT PACKAGING INSTRUCTIONS: 49 CFR 173.154; 173.212;
TDGR CLASS: Class 8 - Corrosives
TDGR LABEL: Corrosive
UN No. SEA: 1823
IMDG CLASS: Class 8 - Corrosives
IMDG PAGE No.: 8225-1
IMDG PACK GR.: II
EmS No.: 8-06
MFAG TABLE No.: 705
UN No., AIR: 1823
ICAO CLASS: Class 8 - Corrosives
AIR PACK GR.: II
| REGULATORY STATUS OF INGREDIENTS:
|| CAS No:
|| SARA 302:
|| SARA 313:
US FEDERAL REGULATIONS:
WASTE CLASSIFICATION: A hazardous waste by U.S. RCRA criteria
REGULATORY STATUS: This product or its components, if a
mixture, is subject to following regulations (Not meant to be all-inclusive, selected regulations represented):
SECTION 313: This product does not contain toxic chemical
subject to the reporting requirements of Section 313 of Title III
of the Superfund Amendment and Reauthorization Act of 1986 and 40
CFR Part 372.
SARA 311 Categories:
1: Immediate (Acute) Health Effects
The components of this product are listed on or are exempt from
the following international chemical registries:
5. Reactivity Hazard
STATE REGULATORY STATUS: This product or its components, if
a mixture, is subject to following regulations (Not meant to be
all-inclusive, selected regulations represented):
New Jersey Right-to-Know
PROPOSITION 65: This product does not contain chemicals
considered by the State of California's Safe Drinking Water and
Toxic Enforcement Act of 1986 as causing cancer or reproductive
toxicity, and for which warnings are now required.
LABELS FOR SUPPLY:
This Material Safety Data Sheet has been prepared in
compilance with the Controlled Product Regulations.
16. OTHER INFORMATION
Canadian WHMIS Classification: E - Corrosive Material D2B -
Other Toxic Effects: Toxic Material
NPCA HMIS HAZARD INDEX: 3 Serious Hazard
FLAMMABILITY: 0 Minimal Hazard
REACTIVITY: 1 Slight Hazard
NPCA HMIS PERS. PROTECT. INDEX: X Ask your supervisor for
USER NOTES: N/A = Not applicable N/D = Not determined
OSHA Permissible Exposure Limits, 29 CFR 1910, Subpart Z,
Section 29 CFR 1910.1000, Air Contaminants.
PREPARED BY: Sam Hoskin
ACGIH Threshold Limit Values and Biological Exposure Indices for
Chemical Substances and Physical Agents (latest edition). Sax's
Dangerous Properties of Industrial Materials, 9th ed., Lewis,
R.J. Sr., (ed.), VNR, New York, New York, (1997).
Product information provided by the commercial vendor(s).
REVISION No./Repl. MSDS of: 1 / June 3, 1996
MSDS STATUS: Approved.
DATE: June 9, 1998
MSDS furnished independent of product sale. While every effort
has been made to accurately describe this product, some of the
data are obtained from sources beyond our direct supervision. We
cannot make any assertions as to its reliability or completeness;
therefore, user may rely on it only at user's risk. We have made
no effort to censor or conceal deleterious aspects of this
product. Since we cannot anticipate or control the conditions under which this information and product may be used, we make no
guarantee that the precautions we have suggested will be adequate
for all individuals and/or situations. It is the obligation of
each user of this product to comply with the requirements of all
applicable laws regarding use and disposal of this product.
Additional information will be furnished upon request to assist
the user; however, no warranty, either expressed or implied, nor
liability of any nature with respect to this product or to the
data herein is made or incurred hereunder.