OXALIC ACID
MSDS Number: O6044 --- Effective Date: 12/08/96
1. Product Identification
Synonyms: Ethanedioic acid, dihydrate; oxalic acid dihydrate
CAS No.: 144-62-7 (Anhydrous)
Molecular Weight: 126.07
Chemical Formula: HOOCCOOH.2H2O
Product Codes: J.T. Baker:
0229, 0230
Mallinckrodt:
2752
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------- ---------
Oxalic Acid 144-62-7 99 - 100% Yes
3. Hazards Identification
Emergency Overview
--------------------------
POISON! DANGER! MAY BE FATAL IF SWALLOWED. CORROSIVE. CAUSES SEVERE
IRRITATION AND BURNS TO SKIN, EYES, AND RESPIRATORY TRACT. HARMFUL IF
INHALED OR ABSORBED THROUGH SKIN. MAY CAUSE KIDNEY DAMAGE.
J.T. Baker SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 2 - Moderate
Flammability Rating: 1 - Slight
Reactivity Rating: 1 - Slight
Contact Rating: 3 - Severe (Corrosive)
Lab Protective Equip: GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES
Storage Color Code: White (Corrosive)
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Potential Health Effects
----------------------------------
Oxalic acid is corrosive to tissue. When ingested, oxalic acid removes
calcium from the blood. Kidney damage can be expected as the calcium is
removed form the blood in the form of calcium oxalate. The calcium oxalate
then obstructs the kidney tubules.
Inhalation:
Harmful if inhaled. Can cause severe irritation and burns of nose, throat,
and respiratory tract.
Ingestion:
Toxic! May cause burns, nausea, severe gastroenteritis and vomiting, shock
and convulsions. May cause renal damage, as evidenced by bloody urine.
Estimate fatal dose is 5 to 15 grams.
Skin Contact:
Can cause severe irritation, possible skin burns. May be absorbed through
the skin.
Eye Contact:
Oxalic acid is an eye irritant. It may produce corrosive effects.
Chronic Exposure:
May cause inflammation of the upper respiratory tract. Prolonged skin
contact can cause dermatitis, cyanosis of the fingers and possible
ulceration. May affect kidneys.
Aggravation of Pre-existing Conditions:
Persons with pre-existing skin disorders or eye problems, or impaired
kidney or respiratory function may be more susceptible to the effects of
the substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Call a physician immediately.
Ingestion:
DO NOT INDUCE VOMITING! Give large quantities of limewater or milk to
drink. Never give anything by mouth to an unconscious person. Call a
physician immediately.
Skin Contact:
In case of contact, wipe off excess from skin then immediately flush skin
with plenty of water for at least 15 minutes while removing contaminated
clothing and shoes. Wash clothing before reuse. Call a physician
immediately.
Eye Contact:
Immediately flush eyes with gentle but large stream of water for at least
15 minutes, lifting lower and upper eyelids occasionally. Call a physician
immediately.
5. Fire Fighting Measures
Fire:
Oxalic Acid is a combustible solid below 101C (215F)
Explosion:
Reacts explosively with strong oxidizing materials and some silver
compounds.
Fire Extinguishing Media:
Water spray, dry chemical, alcohol foam, or carbon dioxide. Foam or water
on molten oxalic acid may cause frothing. Water spray may be used to keep
fire exposed containers cool.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved
self-contained breathing apparatus with full facepiece operated in the
pressure demand or other positive pressure mode.
6. Accidental Release Measures
Remove all sources of ignition. Ventilate area of leak or spill. Wear
appropriate personal protective equipment as specified in Section
8.
Spills: Clean up spills in a manner that does not disperse dust into the
air. Use non-sparking tools and equipment. Pick up spill for recovery or
disposal and place in a closed container. Remove unnecessary people. If
material comes in contact with water, neutralize liquid with alkaline
material (soda ash, lime), then absorb with an inert material (e.g.
vermiculite, dry sand, earth) and place in a chemical waste container. Do
not use combustible materials, such as saw dust. Do not flush to sewer.
7. Handling and Storage
Keep in a tightly closed container. Protect from physical damage. Store in
a cool, dry, ventilated area away from sources of heat, moisture and
incompatibilities. Containers of this material may be hazardous when empty
since they retain product residues (dust, solids); observe all warnings and
precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
-ACGIH Threshold Limit Value (TLV) :
1 mg/m3 (TWA), 2 mg/m3 (STEL)
-OSHA Permissible Exposure Limit (PEL):
1 mg/m3
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee
exposures below the Airborne
Exposure Limits. Local exhaust ventilation is generally preferred because
it can control the emissions of the contaminant at its source, preventing
dispersion of it into the general work area. Please refer to the ACGIH
document, Industrial Ventilation, A Manual of Recommended Practices,
most recent edition, for details.
Personal Respirators (NIOSH Approved):
If the exposure limit is exceeded, a half-face respirator with an organic
vapor cartridge and dust/mist filter may be worn for up to ten times the
exposure limit or the maximum use concentration specified by the
appropriate regulatory agency or respirator supplier, whichever is lowest.
A full-face piece respirator with an organic vapor cartridge and dust/mist
filter may be worn up to 50 times the exposure limit, or the maximum use
concentration specified by the appropriate regulatory agency or respirator
supplier, whichever is lowest. For emergencies or instances where the
exposure levels are not known, use a full-face piece positive-pressure,
air-supplied respirator. WARNING: Air-purifying respirators do not protect
workers in oxygen-deficient atmospheres.
Skin Protection:
Wear impervious protective clothing, including boots, gloves, lab coat,
apron or coveralls, as appropriate, to prevent skin contact.
Eye Protection:
Use chemical safety goggles and/or full face shield where dusting or
splashing of solutions is possible. Maintain eye wash fountain and
quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance:
Transparent, colorless crystals.
Odor:
Odorless.
Solubility:
ca. 1g/7mL of water.
Specific Gravity:
1.65 @ 18.5C/4C (dihydrate
pH:
No information found.
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
149 - 160C (300 - 320F) Sublimes.
Melting Point:
101.5C (216F)
Vapor Density (Air=1):
4.4
Vapor Pressure (mm Hg):
< 0.001 @ 20C (68F)
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage. Heat will contribute
to instability.
Hazardous Decomposition Products:
Carbon dioxide and carbon monoxide may form when heated to decomposition.
May also form formic acid.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Alkalis, chlorites, hypochlorites, oxidizing agents, furfuryl alcohol and
silver compounds.
Conditions to Avoid:
Heat, ignition sources and incompatibililites.
11. Toxicological Information
Oral rat LD50: 7500 mg/kg; irritation skin rabbit: 500 mg/24H mild; eye
rabbit 250 ug/24H severe; investigated as a reproductive effector.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Oxalic Acid (144-62-7) No No None
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an
appropriate and approved waste facility. Although not a listed RCRA
hazardous waste, this material may exhibit one or more characteristics of a
hazardous waste and require appropriate analysis to determine specific
disposal requirements. Processing, use or contamination of this product may
change the waste management options. State and local disposal regulations
may differ from federal disposal regulations.
Dispose of container and unused contents in accordance with federal, state
and local requirements.
14. Transport Information
Domestic (Land, D.O.T.)
-----------------------
Proper Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (OXALIC
ACID, DIHYDRATE)
Hazard Class: 8
UN/NA: UN3261
Packing Group: III
Information reported for product/size: 220LB
International (Water, I.M.O.)
-----------------------------
Proper Shipping Name: CORROSIVE SOLIDS, N.O.S. (OXALIC ACID)
Hazard Class: 8
UN/NA: UN1759
Packing Group: III
Information reported for product/size: 220LB
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Oxalic Acid (144-62-7) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Oxalic Acid (144-62-7) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Oxalic Acid (144-62-7) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Oxalic Acid (144-62-7) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes Fire: No Pressure: No
Reactivity: No (Mixture / Solid)
Australian Hazchem Code: 2X
Poison Schedule: No information found.
WHMIS:
This MSDS has been prepared according to the hazard criteria of
the Controlled Products Regulations (CPR) and the MSDS contains
all of the information required by the CPR.
16. Other Information
NFPA Ratings:
Health: 3 Flammability: 1 Reactivity: 0
Label Hazard Warning:
POISON! DANGER! MAY BE FATAL IF SWALLOWED. CORROSIVE. CAUSES SEVERE
IRRITATION AND BURNS TO SKIN, EYES, AND RESPIRATORY TRACT. HARMFUL IF INHALED
OR ABSORBED THROUGH SKIN. MAY CAUSE KIDNEY DAMAGE.
Label Precautions:
Do not breathe dust.
Do not get in eyes, on skin, or on clothing.
Keep container closed.
Use only with adequate ventilation.
Wash thoroughly after handling.
Label First Aid:
If swallowed, DO NOT INDUCE VOMITING! Give large quantities of lime water or
milk to drink. Never give anything by mouth to an unconscious person. If
inhaled, remove to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen. In case of contact, wipe off excess
material from skin then immediately flush eyes or skin with plenty of water
for at least 15 minutes while removing contaminated clothing and shoes. Wash
clothing before reuse. In all cases call a physician immediately.
Product Use:
Laboratory Reagent.
Revision Information:
Mixture. New 16 section MSDS format, all sections have been revised.
Disclaimer:
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Mallinckrodt Baker, Inc. provides the information contained herein in good
faith but makes no representation as to its comprehensiveness or accuracy. This
document is intended only as a guide to the appropriate precautionary handling
of the material by a properly trained person using this product. Individuals
receiving the information must exercise their independent judgment in
determining its appropriateness for a particular purpose. MALLINCKRODT BAKER,
INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE
PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, MALLINCKRODT BAKER, INC.
WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS
INFORMATION.
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Prepared by: Strategic Services Division
Phone Number: (314) 539-1600 (U.S.A.)