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MSDS 
:
 Methanesulfonic Acid, Tech., 70%
CAS 
:
 75-75-2
SYNONYMS 
:
 MSA
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 75-75-2 |Methanesulfonic Acid | 70% | 200-898-6 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 34

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Causes burns.Corrosive.Moisture sensitive.Water-reactive.

Potential Health Effects
Eye:
Contact with liquid is corrosive to the eyes and causes severe
burns.
Skin:
Contact with liquid is corrosive and causes severe burns and
ulceration. Causes redness and pain.
Ingestion:
Harmful if swallowed. Causes gastrointestinal tract burns.
Inhalation:
May cause severe irritation of the upper respiratory tract with
pain, burns, and inflammation.
Chronic:
No information found.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Get medical aid immediately. Do NOT allow victim to rub eyes or keep
eyes closed. Extensive irrigation with water is required (at least 30
minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes. Wash clothing before reuse. Discard contaminated clothing
in a manner which limits further exposure. 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 and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
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. Reacts violently with water.
Extinguishing Media:
Use dry chemical, carbon dioxide, or alcohol-resistant foam. Do NOT
get water inside containers. 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. Provide ventilation. Do not get
water inside containers.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Do not get in eyes, on skin, or on clothing. Keep
container tightly closed. Do not ingest or inhale. Do not allow
contact with water.
Storage:
Store in a tightly closed container. Keep under an argon blanket.
Store in a cool, dry, well-ventilated area away from incompatible
substances. Corrosives area.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits
CAS# 75-75-2:


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:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Liquid
Color: colorless to light yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: 1 mbar @ 20 C
Viscosity: Not available.
Boiling Point: 167 deg C
Freezing/Melting Point: 18 deg C
Autoignition Temperature: Not available.
Flash Point: > 109 deg C (> 228.20 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Reacts.
Specific Gravity/Density: 1.3450g/cm3
Molecular Formula: CH4O3S
Molecular Weight: 96.10

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Moisture, contact with water, metals, excess heat.
Incompatibilities with Other Materials:
Moisture, HF, Bases, Amines, Strong reducing agents, corrodes steel,
ethylvinyl ether, iron, copper, brass, lead.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Will not occur.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 75-75-2: PB1140000
LD50/LC50:
CAS# 75-75-2: Dermal, guinea pig: LD50 = >2 gm/kg; Oral, rat: LD50 =
200 mg/kg.
Oral LD50(rat): 200-400
Carcinogenicity:
Methanesulfonic Acid -
Not listed by ACGIH, IARC, or NTP.
Other:
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: ALKYLSULPHONIC ACIDS, LIQUID
Hazard Class: 8
UN Number: 2586
Packing Group: III
IMO
Shipping Name: ALKYLSULPHONIC ACIDS, LIQUID, WITH NOT MORE THAN 5
% FREE SULPHURIC ACID
Hazard Class: 8
UN Number: 2586
Packing Group: III
RID/ADR
Shipping Name: ALKYLSULPHONIC ACID, LIQUID
Hazard Class: 8
UN Number: 2586
Packing group: III

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 34 Causes burns.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36 Wear suitable protective clothing.
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# 75-75-2: 2
Canada
CAS# 75-75-2 is listed on Canada's DSL List.
CAS# 75-75-2 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 75-75-2 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 7/07/1998 Revision #2 Date: 3/18/2003

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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