Material Safety Data Sheet MSDS No. 112
HASA CAUSTIC SODA 50% (All Grades)
CAUSTIC SODA 50% (All Grades)
Material Safety Data Sheet
Emergency 24 Hour Telephone: CHEMTREC 800.424.9300
Corporate Headquarters: Hasa Inc.
23119 Drayton Street
Saugus, California 91350
Telephone 鈥? 661.259.5848
鈥? 661.259.1538
Fax
IDENTIFICATION OF PRODUCT
Product Name: Caustic Soda 50% (All Grades)
Product Synonym(s) Common Chemical Names: Sodium Hydroxide Solution. See Miscellaneous
Selection for all grades covered by this MSDS.
Chemical Names of Ingredients [>1.0% by weight]: See Below.
Chemical Family: Alkali
Chemical Formula: NaOH
Chemical Name: Sodium Hydroxide
Product Use: Neutralizing agent; Degreasing agent
COMPOSITION/INFORMATION ON INGREDIENTS
Ingredient Name CAS Registry Number Typical Wt. % OSHA
Sodium Hydroxide 1310-73-2 50% Y
Water 7732-18-5 50% N
The substance (s) marked with a 鈥淵鈥? in the OSHA column, are identified as hazardous chemicals according
to the criteria of the OSHA Communications Standard (29 CFR 1910.1200)
This material is classified as hazardous under Federal OSHA regulation.
The components of this product are all on the TSCA inventory list.
HAZARDS IDENTIFICATION
Emergency Overview: Water white, clear to slightly turbid liquid. Essentially odorless.
CAUSES EYE, SKIN AND RESPIRATORY TRACT BURNS. MAY CAUSE
DANGER! BLINDNESS. CAUSE SEVERE DIGESTIVE TRACT BURNS. EVEN DILUTE
SOLUTIONS MAY CAUSE BURNS.
Major Update: 08/01/01 Minor Revision: 03/01/04 Page 1 of 6
Material Safety Data Sheet MSDS No. 112
HASA CAUSTIC SODA 50% (All Grades)
Potential Heath Effects:
Skin contact and inhalation are expected to be the primary routes of occupational exposure to this
material. This material is a strong alkali that can be destructive to tissue producing severe burns, possibly
with deep ulceration and scarring, on contact with body tissues. Concentrations as low as 2-3 % can cause
injury. Contact with the eyes can rapidly cause severe irritation or permanent injury, possibly with loss of
sight. Solutions of this material may not produce an immediate sensation upon skin contact, delaying
awareness of the fact that contact has occurred. Dermatitis (inflammation of the skin) and superficial skin
damage can result from repeated or prolonged contact with very dilute solutions. High levels of dust or
mists may be corrosive to mucous membranes producing eye or lung injury and chemical pneumonia.
Lower concentrations may produce irritation of eyes, nose or upper respiratory tract with coughing, sore
throat and shortness of breath. Prolonged exposure may result in ulceration of the nasal passages.
While swallowing of this material is unlikely in the industrial setting, if swallowed, this material may cause
severe injury, characterized by pain in the mouth and stomach, vomiting, and breathing difficulties. Due to
the potential for this material to produce severe respiratory tract irritation, workers with lung disease or
diminished respiratory capacity should have limited exposure to this material.
FIRST AID MEASURES
IN CASE OF CONTACT, immediately flush with plenty of water for at least 30
IF CONTACTED:
minutes while removing contaminated clothing and shoes. Get medical attention
immediately. Wash clothing before reuse. Destroy contaminated shoes.
IF SWALLOWED, do NOT induce vomiting. Give water to drink. Get medical
IF SWALLOWED:
attention immediately. NEVER GIVE ANYTHING BY MOUTH TO AN
UNCONSCIOUS PERSON.
IF INHALED, remove to fresh air. If not breathing, give artificial respiration. If
IF INHALED:
breathing is difficult, give oxygen. Get medical attention.
FIRE FIGHTING MEASURES
Fire and Explosive Properties
Auto-Ignition Temperature NA
Flash Point NA Flash Point Method
Flammable Limits 鈥? Upper NA
Lower NA
Extinguishing Media: Use dry chemical. Do not use water to cool containers exposed to fire.
Fire Fighting Fire fighters and other who may be exposed to products of combustion should
Instructions: wear full fire fighting turn out gear (full Bunker Gear) and self-contained breathing
apparatus (pressure demand NIOSH approved or equivalent). Fire fighting
equipment should be thoroughly decontaminated after use.
Fire and Exposition Contact with metal can form hydrogen gas. Hydrogen is extremely flammable and
Hazards: can form explosive mixtures with air. Closed containers may explode when
heated or contents contaminated with water.
ACCIDENTAL RELEASE MEASURES
In Case of Spill or Stop the leak, if possible. Ventilate the space involved. Contain, vacuum up, place in
Leak: non-sparking container for disposal. Prevent waterway contamination. Construct a
dike to prevent spreading. Collect run-off and transfer to drums or tanks for later
disposal. Consult a regulatory specialist to determine appropriate state or local
reporting requirements, for assistance in waste characterization and/or hazardous
waste disposal and other requirements listed in pertinent environmental permits.
Major Update: 08/01/01 Minor Revision: 03/01/04 Page 2 of 6
Material Safety Data Sheet MSDS No. 112
HASA CAUSTIC SODA 50% (All Grades)
HANDLING AND STORAGE
Handling: Do not get in eyes, or skin or on clothing. Do not breathe mist. Keep container closed. Use only
with adequate ventilation. Do not taste or swallow. Wash thoroughly after handling. To avoid
rapid temperature rise, violent spattering, or explosive eruptions always add caustic to water
when mixing. Never add water to a caustic when mixing. Heat water to 80-100 F before adding
product. Add small amounts of product slowly and evenly over single addition, Water should
not exceed 160掳 F during addition.
Storage: Do NOT store near strong acids.
EXPOSURE CONTROLS/ PERSONAL PROTECTION
Engineering Investigate engineering techniques to reduce exposures below airborne exposure limits.
Controls: Provide ventilation if necessary to control exposure levels below airborne exposure limits
(see below). Dilution ventilation acceptable, but local mechanical exhaust ventilation
preferred, if practical, at sources of air contamination such as open process equipment.
Consult ACGIH ventilation manual or NFPA Standard 91 for design of exhaust systems.
Monitor carbon monoxide and oxygen levels in tank and enclosed spaces.
Eye/ Face Where there is potential for eye contact, wear a face shield, chemical goggles, and have eye-
Protection: flushing equipment immediately available.
Skin Natural rubber or Polyvinyl chloride gloves should be worn when handling this material. Wear
Protection: chemical goggles, a face shield, and chemical resistant clothing such as a rubber apron
when splashing may occur. Rinse immediately if skin is contaminated. Remove contaminated
clothing promptly and wash before reuse. Clean protective equipment before reuse. Provide
a safety shower at any location where skin contact can occur. Wash skin thoroughly after
handling.
Respiratory Avoid breathing vapor or mist. Use NIOSSH approved respiratory protection equipment
Protection: appropriate to the material and/ or its components when airborne exposure limits are
exceeded (see below). Consult respirator manufacturer to determine appropriate type
equipment for given application. Observe respirator use limitations specified by NIOSH or the
manufacturer. For emergency and other conditions where exposure limit may be significantly
exceeded, use an approved full-face positive-pressure, self-contained breathing apparatus or
positive -pressure airline with auxiliary self-contained air supply. Respiratory protection
programs must comply with 29 CFR & 1910.134
Other Protective Equipment: Rubber boots, Rubber suit or Apron, Chemical resistant protective clothing.
Airborne Exposure Guidelines for Ingredients:
Exposure Limit Value
Sodium Hydroxide
ACGIH STEL 2 mg/m3
OSHA TWA PEL 2 mg/m3
- Only those components with exposure limits are printed in this section.
- Skin contact limits designated with a 鈥淵鈥? above have skin contact effect. Air sampling alone is insufficient to
accurately quantitative exposure. Measures to prevent significant cutaneous absorption may be required.
PHYSICAL AND CHEMICAL PROPERTIES
Appearance: Water white, clear to slightly turbid liquid. Melting Point: NA
Odor: Essentially odorless Freezing Point: -12掳 C (54掳 F)
pH: NE Boiling Point: 142掳 C (288掳 F)
Specific Gravity: 1.525 @ 20掳 C (Avg.) Solubility in Water: Complete
Vapor Pressure: 1.6 @ 20 C0 Percent Volatile: 50
Vapor Density: NA Molecular Weight: 40.01 (Dry Basis)
Major Update: 08/01/01 Minor Revision: 03/01/04 Page 3 of 6
Material Safety Data Sheet MSDS No. 112
HASA CAUSTIC SODA 50% (All Grades)
STABILITY AND REACTIVITY
Stability: This material is chemically stable under normal and anticipated storage and handling
conditions.
Incompatibility: Contact with water releases heat, which can result in violent boiling and spattering.
Avoid strong acids, metals and organic material such as chlorinated hydrocarbons.
Explosive hydrogen gas can be liberated on contact with metals, such as zinc, tin or
Hazardous
aluminum. Hydrogen gas can result in explosive hazards in confined spaces.
Decomposition
Products:
TOXICOLOGICAL INFORMATION
Data on this material and/or a similar material are summarized below.
Sodium Hydroxide Single exposure (acute) studies indicate that this material is slightly toxic to rabbits if
absorbed through skin (LD 50 1,350 mg/Kg for dry material), and corrosive to rabbit eyes and skin. Many
publications in the scientific literature confirm the severely irritating properties of acute and short-term
exposure to this material in humans and animals and discuss toxic effects (such as a death, eye damage or
changes in lung morphology), which are probably related to the corrosive properties of this compound.
Inhalation of unmeasured concentrations 30 minutes per day for 2.5 months resulted in lung damage in rats.
A rodent drinking water study at 1% (duration unknown) was reported to result in 鈥渘ervous symptoms鈥? and
growth retardation. Growth was unaffected in this same study at 0.5 %, but no conceptions occurred. No
tumors were seen in any longer term animal studies. This material produced no generic charges in standard
tests using bacterial cells.
No significant increases in mortality in relation to duration or intensity of exposures were reported in an
epidemiologic study of a small group of workers exposed to caustic dusts for 30 years or more. Massive
ingestion of this material has been implicated as causing esophageal cancer. Squamous cell carcinomas of
the esophagus occurred approximately 12-42 years later in individuals who survived accidental childhood
ingestion and are likely due to the tissue destruction and possible scarring of the esophagus rather than a
direct effect of this material.
ECOLOGICAL INFORMATION
Ecotoxicological Data on this material and/or a similar material are summarized below. Sodium
Information: Hydroxide. Data from several species of fish showed a range of tolerance (brook trout >
spotfin and Lake Emerald shiners > minnows > mosquitofish > goldfish) that was most
likely related to changes in the pH produced by addition of this material to the water.
The minimum lethal concentration for minnows, Mayfly larvae and Daphnia was 100
ppm and for Chironomus larvae, 700 ppm.
Chemical Fate Data on this material and/or a similar material are summarized below.
Information: Sodium Hydroxide: No Data were available, but this material is a strong alkali that easily
dissolves in water with resulting acid/base chemistry.
DISPOSAL CONSIDERATIONS
Waste Consul with environmental engineer or professional to determine of neutralization is appropriate
Disposal: and for handling procedures for residual material. Note: Chemical additions to, processing of, or
otherwise altering this material may make this waste management information incomplete,
inaccurate, or otherwise inappropriate Furthermore, state and local waste disposal requirements
may be more restrictive or otherwise different from federal laws and regulation.
Major Update: 08/01/01 Minor Revision: 03/01/04 Page 4 of 6
Material Safety Data Sheet MSDS No. 112
HASA CAUSTIC SODA 50% (All Grades)
TRANSPORT INFORMATION
DOT Name: Sodium Hydroxide Solution
DOT Hazard Class: 8
UN Number: UN 1824
DOT Packing Group: PG II
RQ: 1000 lbs
DOT Special Information: Tank Trucks: Corrosive Placards
Tank Cars: Placarded Corrosive
REGULATORY INFORMATION
Hazard Categories Under Criteria of SARA Tile IIII Rules (40 CFR Part 370)
Immediate (Acute) Health: Yes Fire: No
Delayed Chronic Health: No Reactive: No
Sudden Release of Pressure: No
The components of this product are all on the TSCA inventory list.
Ingredient Related Regulatory Information:
SARA Reportable Quantities CERCLA RQ SARA TPQ
Sodium Hydroxide 1000 Lbs.
Water NE
Massachusetts Right to know
This product does contain the following chemical (s), as indicated below, currently on the Massachusetts
Right -to-Know Substances List.
Sodium Hydroxide
New Jersey Right to know
This product does contain the following chemical (s), as indicated below, currently on the New Jersey Right-
to-Know Substances List.
Sodium Hydroxide
Pennsylvania Environmental Hazard
This product does contain the following chemical (s), as indicate below, currently on the Pennsylvania
Environmental Hazard List.
Sodium Hydroxide.
Pennsylvania Right to Know
This product does contain the following chemical (s), as indicated below, currently on the Pennsylvania
Hazardous Substance List.
Sodium Hydroxide.
OTHER INFORMATION
Revision Information
Revision Date 08.01.2001 Revision Number 1
Supercedes Revision Dated 07.20.1999
Revision Summary Initial Entry into 16 section format
Key: NE = Not Established NA = Not Applicable (R) Registered Trademark
Major Update: 08/01/01 Minor Revision: 03/01/04 Page 5 of 6
Material Safety Data Sheet MSDS No. 112
HASA CAUSTIC SODA 50% (All Grades)
Miscellaneous
NOTE: Toxic carbon monoxide gas can form upon contact with food and beverage products in enclosed
spaces and cause death.
This MSDS covers the following grades:
50% Membrane Grade
50% High Purity Membrane Grade
50% Rayon Grade
50% Standard Grade
50% Chemical Grade
50% Bleach Grade
50% With Additive
Please Note: The information contained herein, while not guaranteed, was prepared by competent technical
personnel and is true and accurate to the best of our knowledge and belief. NO WARRANTY OR
GUARANTEE, expressed or implied, is made regarding the product performance, product stability, or as to
any other condition of use, handling, transportation, and storage. Customer use, handling, transportation,
and storage may involve additional safety and/or performance considerations. Our technical personnel will
be happy to respond to questions regarding safe handling, storage, transportation and use procedures. The
safe handling, storage, transportation and use procedures remain the sole responsibility of the customer. No
suggestions for handling, storage, transportation or use are intended as or to be construed as
recommendations which may infringe on any existing patents or violate any Federal, State, and/or local law
and/or regulation, ordinance, standard, etc.. This Material Safety Data Sheet has been prepared by HASA,
Inc. staff from test reports and other information available in the public domain.
Major Update: 08/01/01 Minor Revision: 03/01/04 Page 6 of 6
|