**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 68-11-1 |Thioglycolic Acid | 98 | 200-677-4 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T C
Risk Phrases: 34 24/25
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Causes burns. Toxic in contact with skin and if swallowed.Corrosive.
Potential Health Effects
Eye:
Causes severe eye burns. May cause irreversible eye injury.
Skin:
May be fatal if absorbed through the skin. Causes skin burns. Strong
irritant of the skin.
Ingestion:
Harmful if swallowed. Causes gastrointestinal tract burns.
Mercaptans may cause nausea and headache. Exposure to high
concentrations of mercaptans can produce unconsciousness with
cyanosis (bluish discoloration of skin due to deficient oxygenation
of the blood), cold extremities and rapid pulse.
Inhalation:
May cause severe irritation of the respiratory tract with sore
throat, coughing, shortness of breath and delayed lung edema.
Olfactory fatigue may occur. Exposure to high concentrations of
mercaptans can produce unconsciousness with cyanosis (bluish
discoloration of skin due to deficient oxygenation of the blood),
cold extremities and rapid pulse. Mercaptans may cause nausea and
headache.
Chronic:
No information found.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Get medical aid immediately. Do NOT allow victim to rub or keep eyes
closed. Extensive irrigation with water is required (at least 30
minutes).
Skin:
Get medical aid immediately. Flush skin with plenty of soap and
water for at least 15 minutes while removing contaminated clothing
and shoes. Wash clothing before reuse. Destroy contaminated shoes.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure to fresh air
immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Do NOT use mouth-to-mouth
resuscitation.
Notes to Physician:
**** 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. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion. Reacts with
most metals to form highly flammable hydrogen gas which can form
explosive mixtures with air. Reacts violently with water. Vapors may
be heavier than air. They can spread along the ground and collect in
low or confined areas. May polymerize explosively when involved in a
fire. Containers may explode when heated.
Extinguishing Media:
Do NOT get water inside containers. For small fires, use dry
chemical, carbon dioxide, or water spray. For large fires, use dry
chemical, carbon dioxide, alcohol-resistant foam, or water spray.
Cool containers with flooding quantities of water until well after
fire is out.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Avoid runoff into storm sewers and
ditches which lead to waterways. Clean up spills immediately,
observing precautions in the Protective Equipment section. Remove all
sources of ignition. Provide ventilation. Do not get water inside
containers.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Use with adequate ventilation. Do
not allow water to get into the container because of violent
reaction. Do not reuse this container. Empty containers retain
product residue, (liquid and/or vapor), and can be dangerous. Do not
get on skin or in eyes. Do not ingest or inhale. Keep away from
clothing and other combustible materials. Discard contaminated shoes.
Do not pressurize, cut, weld, braze, solder, drill, grind, or expose
empty containers to heat, sparks or open flames.
Storage:
Keep away from heat and flame. Do not store near combustible
materials. Store in a cool, dry place. Keep container closed when not
in use. Keep away from metals. Corrosives area. Do not store in metal
containers.
**** 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 substance with
extreme caution and designate regulated areas for use. Use process
enclosure, local exhaust ventilation, or other engineering controls
to control airborne levels.
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
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 a respirator's use.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Appearance: clear, colorless
Odor: unpleasant odor
pH: 1.6 (10% solution)
Vapor Pressure: 10 mm Hg @18 deg C
Viscosity: 6.35 cPs @ 20 deg C
Boiling Point: 123 deg C
Freezing/Melting Point: -16.5 deg C
Autoignition Temperature: 350 deg C ( 662.00 deg F)
Flash Point: 128 deg C ( 262.40 deg F)
Explosion Limits, lower: 5.9%
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble in water
Specific Gravity/Density: 1.325
Molecular Formula: HSCH2COOH
Molecular Weight: 92.0868
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions. Oxidizes when exposed to air.
Conditions to Avoid:
Incompatible materials, ignition sources, metals, excess heat,
oxidizers.
Incompatibilities with Other Materials:
Strong oxidizing agents and strong bases. Reacts with group 1 and 2
metals (Sodium, Potassium, Magnesium, ...) to produce hydrogen gas.
Corrosive to steel, stainless steel, nickel base alloys, and
aluminum.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide, sulfur oxides (SOx), including sulfur oxide and sulfur
dioxide.
Hazardous Polymerization: May occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 68-11-1: AI5950000
LD50/LC50:
CAS# 68-11-1: Oral, mouse: LD50 = 242 mg/kg; Oral, rabbit: LD50 =
119 mg/kg; Oral, rat: LD50 = 114 mg/kg.
Carcinogenicity:
Thioglycolic Acid -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Other
No information available.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: THIOGLYCOLIC ACID
Hazard Class: 8
UN Number: 1940
Packing Group: II
IMO
Shipping Name: THIOGLYCOLIC ACID
Hazard Class: 8
UN Number: 1940
Packing Group: II
RID/ADR
Shipping Name: THIOGLYCOLIC ACID
Dangerous Goods Code: 8(32B)
UN Number: 1940
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T C
Risk Phrases:
R 34 Causes burns.
R 24/25 Toxic in contact with skin and if swallowed.
Safety Phrases:
S 2 Keep out of reach of children.
S 25 Avoid contact with eyes.
S 27 Take off immediately all contaminated clothing.
S 28 After contact with skin, wash immediately
with...
S 28C After contact with skin, wash immediately with
a sodium borate solution.
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# 68-11-1: 1
United Kingdom Occupational Exposure Limits
CAS# 68-11-1: OES-United Kingdom, TWA 1 ppm TWA; 3.8 mg/m3 TWA
Canada
CAS# 68-11-1 is listed on Canada's DSL List.
CAS# 68-11-1 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 68-11-1: OEL-AUSTRALIA:TWA 1 ppm (4 mg/m3)
OEL-BELGIUM:TWA 1 ppm (3.8 mg/m3)
OEL-DENMARK:TWA 1 ppm (5 mg/m3)
OEL-FINLAND:TWA 1 ppm (5 mg/m3);STEL 3 ppm (15 mg/m3)
OEL-FRANCE:TWA 1 ppm (5 mg/m3);Skin
OEL-HUNGARY:TWA 0.5 mg/m3;STEL 1 mg/m3
OEL-RUSSIA:STEL 0.1 mg/m3;Skin
OEL-SWITZERLAND:TWA 1 ppm (4 mg/m3);Skin
OEL-UNITED KINGDOM:TWA 1 ppm (3.8 mg/m3);Skin
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 68-11-1 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 10/23/1998 Revision #2 Date: 8/02/2000
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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