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MATERIAL SAFETY DATA SHEET
Oxalic Acid
Section 01 - Chemical And Product And Company Information
Product Identifier 鈥︹?︹?︹?︹?︹?︹?︹??.... Oxalic Acid
Product Use 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹??...... Metal cleaning, texile cleaning, anti-corrosion coating, chemical
intermediate, catalyst
Supplier Name鈥︹?︹?︹?︹?︹?︹?︹?︹??.鈥?.. ClearTech Industries Inc.
2302 Hanselman Avenue
Saskatoon, SK. Canada
S7L 5Z3
Prepared By................鈥︹?︹?︹?︹??..鈥?... ClearTech Industries Inc. Technical Department
Phone: (306)664-2522
Preparation Date.........鈥︹?︹?︹?︹??.鈥?.... May 29, 2006
24-Hour Emergency Phone鈥︹?︹?︹??.... 306-664-2522
Section 02 - Composition / Information on Ingredients
Hazardous Ingredients....鈥︹?︹?︹??..... Oxalic Acid 100%
CAS Number...................鈥︹??.鈥︹??...... Oxalic Acid 144-62-7
Synonym (s)...................鈥︹?︹?︹?︹??....Ethanedioic acid, ethandionic acid, dicarboxylic acid
Section 03 - Hazard Identification
Inhalation...................鈥︹?︹?︹??.鈥?..... Inhalation of dust causes irritation of gastrointestinal and respiratory tract
characterized by burning, sneezing and coughing. Severe overexposure
can produce lung damage, lung damage, choking, unconsciousness or
death.
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Skin Contact / Absorption鈥︹??.鈥?..... Contact may burn skin causing inflammation and blistering. Prolonged or
repeated contact may cause dermatitis.
Eye Contact................鈥︹?︹?︹??.鈥?..... Dusts may severely irritate or damage the eyes. Direct contact can result in
corneal damage and blindness.
Ingestion.....................鈥︹?︹?︹?︹?︹??.. Ingestion of a few grams may be fatal. Acute oxalic poisoning results in
severe corrosion of the mouth, throat, and digestive tract with vomiting,
abdominal pain, collapse, and possibly convulsions. Death may follow
quickly.
Exposure Limits鈥︹?︹?︹?︹?︹?︹?︹??.... TLV-TWA= 1mg/m3
ACHIH-STEL= 2mg/m3
Section 04 - First Aid Measures
Inhalation....................鈥︹?︹?︹?︹?︹??... Remove victim to fresh air. Give artificial respiration only if breathing has
stopped. If breathing is difficult, give oxygen. Seek immediate medical
attention.
Skin Contact / Absorption鈥︹?︹?︹??... Remove contaminated clothing. Wash affected area with water for at least
15 minutes. Cover skin with an emollient. Seek medical attention if
irritation occurs or persists.
Eye Contact..................鈥︹?︹?︹?︹??..... Flush immediately with water for at least 20 minutes. Forcibly hold eyelids
apart to ensure complete irrigation of eye tissue. Seek immediate medical
attention.
Ingestion......................鈥︹?︹?︹?︹?︹??.. Do not induce vomiting. If vomiting occurs, lean victim forward. Do not give
anything by mouth to an unconscious or convulsing person. Seek
immediate medical attention.
Additional Information.....鈥︹?︹?︹??.... If victim is conscious give immediately, by mouth, a fine suspension in
water of a non-toxic calcium compound such as calcium lactate, chalk,
plaster or milk. Large amounts of calcium are required to inactivate oxalate
by precipitating it as the insoluble calcium oxalate salt.
Section 05 - Fire Fighting
Conditions of Flammability鈥︹?︹??..... None
Means of Extinction........鈥︹?︹?︹??...... Use extinguishing media appropriate for surrounding fire. Use water spray
to cool fire-exposed containers and structures.
Flash Point....鈥︹?︹?︹?︹?︹?︹?︹?︹?︹??... Not available
Auto-ignition Temperature鈥︹?︹?︹??.. Not available
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Upper Flammable Limit 鈥︹?︹?︹?︹??... Not available
Lower Flammable Limit...鈥︹?︹??.鈥?.... Not available
Hazardous Combustible Products.... Carbon monoxide and carbon dioxide
Special Fire Fighting Procedures...... Wear NIOSH-approved self-contained breathing apparatus and protective
clothing. Use water to keep fire exposed containers and structures cool.
Explosion Hazards鈥︹?︹?︹?︹?︹?︹??..... Fine dust dispersed in air at sufficient concentrations, and in the presences
of an ignition source is a potential dust explosion hazard.
Section 06 - Accidental Release Measures
Leak / Spill................鈥?.鈥︹?︹?︹?︹??.... Wear appropriate personal protective equipment. Ventilate area. Isolate
hazard area and restrict access. Stop or reduce leak if safe to do so.
Prevent material from entering sewers. Scoop up or vacuum up and place
in an appropriate closed container. Flush with water to remove any
residue.
Deactivating Materials...鈥︹?︹??.鈥?..... Not available
Section 07 - Handling and Storage
Handling Procedures.......鈥︹?︹?︹??.... Use proper equipment for lifting and transporting all containers. Avoid dust
generation and provide for room ventilation during handling. Wash
thoroughly after handling. Avoid all situations that could lead to harmful
exposure.
Storage Requirements......鈥︹??...鈥?... Store in a cool, dry, well ventilated area, away from heat and ignition
sources. Keep the containers closed when not in use. Avoid storage with
incompatible materials.
Section 08 - Personal Protection and Exposure Controls
Protective Equipment
Eyes.鈥︹?︹?︹?︹?︹?︹?︹?︹?︹??.鈥︹?︹??..... Chemical goggles, full-face shield, or a full-face respirator is to be worn at
all times when product is handled. Contact lenses should not be worn; they
may contribute to severe eye injury.
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Respiratory鈥︹?︹?︹?︹?︹?︹?︹?︹?︹??...... NIOSH recommendations for oxalic acid concentrations in air:
Up to 25 mg/m3: Powered air-purifying respirator with dust and mist filter(s),
or SAR operated in a continuous-flow mode.
Up to 50 mg/m3: Full-facepiece respirator with high-efficiency particulate
filter(s), or full-facepiece SCBA, or fullfacepiece SAR.
Up to 500 mg/m3: Positive pressure, full-facepiece SAR.
Gloves鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??...... Impervious gloves of chemically resistant material (rubber, neoprene, nitrile
or PVC) should be worn at all times. Wash contaminated clothing and dry
thoroughly before reuse.
Clothing鈥︹?︹?︹?︹?︹?︹?︹?︹??..鈥︹??..... Body suits, aprons, and/or coveralls of chemical resistant material should
be worn at all times. Wash contaminated clothing with soap and water, dry
thoroughly before reuse.
Footwear鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??...... Impervious boots of chemically resistant material should be worn.
Engineering Controls
Ventilation Requirements鈥︹?︹??....... Mechanical ventilation (dilution or local exhaust), process or personnel
enclosure and control of process conditions should be provided. Supply
sufficient replacement air to make up for air removed by exhaust systems.
Other鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??..... Ensure that eyewash stations and safety showers are proximal to the work-
station location.
Section 09 - Physical and Chemical Properties
Physical State.......鈥︹??....鈥︹?︹?︹??..... Solid
Odor and Appearance鈥?..鈥︹?︹?︹??..... Odorless, transparent crystals or powder.
Odor Threshold....鈥︹?︹?︹?︹??............. Not applicable
Specific Gravity (Water=1)鈥︹?︹?︹??... Not available
Vapor Pressure (mm Hg, 20oC)鈥?.鈥?.. < 0.001mm Hg
Vapor Density (Air=1)..鈥︹?︹?︹?︹??...... Not available
Evaporation Rate........鈥︹??..鈥︹??.鈥?... Not available
Boiling Point...............鈥︹?︹?︹??.鈥?...... Not available
Freeze/Melting Point....鈥︹?︹?︹?︹??..... 182-190oC
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pH............................鈥︹?︹?︹?︹?︹??.鈥?... 1.3 (0.1M solution in water)
Water/Oil Distribution Coefficient..... Not available
Bulk Density..............鈥︹?︹?︹?︹??.鈥?.... Not available
% Volatiles by Volume鈥︹?︹??..鈥︹??.... Not available
Solubility in Water...鈥︹?︹?︹?︹?︹??...... Soluble in water
Molecular Formula......鈥︹?︹?︹??.鈥?..... C2H2O4
Molecular Weight........鈥︹?︹?︹?︹??...... 90.04 (anhydrous)
Section 10 - Stability and Reactivity
Stability.................鈥︹?︹?︹??....鈥︹?︹?︹?︹??.. Stable. If heated to melting point, sublimation and decomposition
occurs.
Incompatibility..............鈥︹?︹?︹??..鈥︹?︹??... Alkalis, alkali metals, oxidizing agents, silver, iron, acid chlorides
Hazardous Products of Decomposition... Oxides of carbon
Polymerization...........鈥︹?︹?︹?︹??.鈥︹??.鈥?.. Will not occur
Section 11 - Toxicological Information
Irritancy.................鈥︹??..鈥︹?︹?︹??.鈥?.. Strong irritant to skin, eyes, mouth, throat and stomach.
Sensitization........鈥︹??.......鈥︹?︹?︹??... Not available
Chronic/Acute Effects鈥︹??...鈥︹?︹??... Long term exposure to oxalic acid solutions, by ingestion, skin absorption
and inhalation, is linked to stone formation (calculi) in the kidney and urinary
tract (urolithiasis) of workers. Painful abdominal spasms (during the passing
of the stone) as well as painful and difficult urination during exposure).
Oxalic acid solutions can cause localized pain, discolouration of the fingers
and nails and possibly ulcers and gangrene. Weight loss, chronic
inflammation of the upper respiratory tract, irritation of the nose and throat
and painful urination were symptoms of long term chronic exposure by
inhalation.
Synergistic Materials...鈥︹??....鈥︹??.... Not available
Animal Toxicity Data......鈥?..鈥︹?︹??.... LD50(oral,rat)= 7500mg/kg
LD50(dermal,rabbit)= 20000mg/kg
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Carcinogenicity......鈥︹??......鈥︹?︹??.... Not considered to be carcinogenic as per NTP, OSHA, IARC.
Reproductive Toxicity..鈥?...鈥︹?︹??.... Not available
Teratogenicity..........鈥?.....鈥︹?︹?︹??.... Not available
Mutagenicity...........鈥︹??.....鈥︹?︹?︹??.. Not available
Section 12 - Ecological Information
Fish Toxicity..................鈥︹?︹?︹?︹??.... LC50(mosquito fish)= 1350mg/L
LC50(bluegill)= 4000mg/L
Biodegradability.............鈥︹?︹??.鈥?..... Not available
Environmental Effects鈥︹?︹?︹?︹?︹??.. Not available
Section 13 - Disposal Consideration
Waste Disposal...........鈥?...鈥︹?︹?︹??... Dispose in accordance with all federal, provincial, and/or local regulations
including the Canadian Environmental Protection Act.
Section 14 - Transportation Information
TDG Classification
Class鈥︹?︹?︹?︹??..鈥︹?︹?︹?︹?︹??..鈥?..... Not regulated
Group...............鈥︹?︹?︹?︹??.......鈥︹??.... Not regulated
PIN Number.................鈥︹??..鈥︹?︹??..... Not regulated
Other鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??...... Secure containers (full and/or empty) with suitable hold down devises
during shipment.
Section 15 - Regulatory Information
WHMIS Classification.......鈥︹?︹?︹??.....D1, E
NOTE: THE PRODUCT LISTED ON THIS MSDS HAS BEEN CLASSIFIED IN ACCORDANCE WITH THE
HAZARD CRITERIA OF THE CANADIAN CONTROLLED PRODUCTS REGULATIONS. THIS MSDS CONTAINS
ALL INFORMATION REQUIRED BY THOSE REGULATIONS.
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Section 16 - Other Information
Note: The responsibility to provide a safe workplace remains with the user. The user should consider the
health hazards and safety information contained herein as a guide and should take those precautions
required in an individual operation to instruct employees and develop work practice procedures for a safe
work environment. The information contained herein is, to the best of our knowledge and belief, accurate.
However, since the conditions of handling and use are beyond our control, we make no guarantee of
results, and assume no liability for damages incurred by the use of this material. It is the responsibility of
the user to comply with all applicable laws and regulations.
ClearTech Industries Inc. - Locations
Corporate Head Office: 2302 Hanselman Avenue, Saskatoon, SK, S7L 5Z3
Phone: 306-664-2522
Fax: 306-665-6216
www.ClearTech.ca
Location Address Postal Code Phone Number Fax Number
Richmond, B.C. 12431 Horseshoe Way V7A 4X6 604-272-4000 604-272-4596
Calgary, AB. 5516E - 40th St. S.E. T2C 2A1 403-279-1096 403-236-0989
Edmonton, AB. 11750 - 180th Street T5S 1N7 780-452-6000 780-452-4600
Saskatoon, SK. 2302 Hanselman Avenue S7L 5Z3 306-933-0177 306-933-3282
Regina, SK. 555 Henderson Drive S42 5X2 306-721-7737 306-721-8611
Winnipeg, MB. 340 Saulteaux Crescent R3J 3T2 204-987-9777 204-987-9770
Mississauga, ON. 7480 Bath Road L4T 1L2 905-612-0566 905-612-0575
24 Hour Emergency Number - All Locations - 306-664-2522
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