**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 1310-73-2 |Sodium hydroxide | >98 | 215-185-5 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 35
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Causes severe burns.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes eye burns. May cause chemical conjunctivitis and corneal
damage.
Skin:
Causes skin burns. May cause deep, penetrating ulcers of the skin.
May cause skin rash (in milder cases), and cold and clammy skin with
cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes
gastrointestinal tract burns. May cause perforation of the digestive
tract. Causes severe pain, nausea, vomiting, diarrhea, and shock.
May cause corrosion and permanent tissue destruction of the
esophagus and digestive tract. May cause systemic effects.
Inhalation:
Irritation may lead to chemical pneumonitis and pulmonary edema.
Causes severe irritation of upper respiratory tract with coughing,
burns, breathing difficulty, and possible coma. Causes chemical
burns to the respiratory tract.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Effects may
be delayed.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, immediately flush skin with plenty of water for
at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give
anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Use water spray to keep fire-exposed containers
cool. Use water with caution and in flooding amounts. Contact with
moisture or water may generate sufficient heat to ignite nearby
combustible materials. Contact with metals may evolve flammable
hydrogen gas.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to
extinguish surrounding fire. Do NOT get water inside containers.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Avoid runoff into storm sewers and ditches which lead to
waterways. Clean up spills immediately, observing precautions in the
Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation. Do not get water on spilled substances or inside
containers.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Do not allow water to get into the
container because of violent reaction. Minimize dust generation and
accumulation. Do not get in eyes, on skin, or on clothing. Keep
container tightly closed. Avoid ingestion and inhalation. Discard
contaminated shoes. Use only with adequate ventilation.
Storage:
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep away
from metals. Corrosives area. Keep away from acids. Store protected
from moisture. Containers must be tightly closed to prevent the
conversion of NaOH to sodium carbonate by the CO2 in air.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits.
Exposure Limits
CAS# 1310-73-2:
United Kingdom, WEL - STEL: 2 mg/m3 STEL
United States OSHA: 2 mg/m3 TWA
Belgium - TWA: 2 mg/m3 VLE
France - VME: 2 mg/m3 VME
Germany: 2 mg/m3 TWA (inhalable fraction)
Japan: 2 mg/m3 Ceiling
Malaysia: 2 mg/m3 Ceiling
Spain: 2 mg/m3 VLA-EC
Personal Protective Equipment
Eyes:
Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Solid
Color: white
Odor: Odorless
pH: 14 (5% aq soln)
Vapor Pressure: 1 mm Hg @739 deg C
Viscosity: Not available.
Boiling Point: 1390 deg C @ 760 mm Hg
Freezing/Melting Point: 318 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Soluble.
Specific Gravity/Density: 2.13 g/cm3
Molecular Formula: NaOH
Molecular Weight: 40.00
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Moisture, contact with water, exposure to moist air or water,
prolonged exposure to air.
Incompatibilities with Other Materials:
Water, metals, acids, aluminum, zinc, tin, nitromethane, leather,
flammable liquids, organic halogens, wool.
Hazardous Decomposition Products:
Toxic fumes of sodium oxide.
Hazardous Polymerization: Will not occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 1310-73-2: WB4900000
LD50/LC50:
CAS# 1310-73-2: Draize test, rabbit, eye: 400 ug Mild; Draize test,
rabbit, eye: 1% Severe; Draize test, rabbit, eye: 50 ug/24H Severe;
Draize test, rabbit, eye: 1 mg/24H Severe; Draize test, rabbit,
skin: 500 mg/24H Severe.
Carcinogenicity:
Sodium hydroxide -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: SODIUM HYDROXIDE, SOLID
Hazard Class: 8
UN Number: 1823
Packing Group: II
IMO
Shipping Name: SODIUM HYDROXIDE, SOLID
Hazard Class: 8
UN Number: 1823
Packing Group: II
RID/ADR
Shipping Name: SODIUM HYDROXIDE, SOLID
Hazard Class: 8
UN Number: 1823
Packing group: II
USA RQ: CAS# 1310-73-2: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 35 Causes severe burns.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 1310-73-2: 1
Canada
CAS# 1310-73-2 is listed on Canada's DSL List.
CAS# 1310-73-2 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1310-73-2 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 12/12/1997 Revision #8 Date: 3/04/2004
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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