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1. Product Identification

Synonyms: 2-Hydroxy-1, 2, 3-propanetricarboxylic acid
CAS No.: 77-92-9
Molecular Weight: 192.12
Chemical Formula: C6H5O7
Product Codes: 0122, 0123, 4941

2. Composition/Information on Ingredients Ingredient              CAS No                Percent                               Hazardous 
Citric Acid                                                                                                77-92-9                99 - 100%                                 Yes

2. Hazards Identification
3. Emergency Overview

-------------------------- WARNING! CAUSES SEVERE EYE IRRITATION. CAUSES IRRITATION TO SKIN AND RESPIRATORY TRACT. J.T. Baker SAF-T-DATA(tm) Ratings (Provided here for your convenience)
Health Rating: 0 - None Flammability Rating: 1 - Slight Reactivity Rating: 0 - None Contact Rating: 1 - Slight Lab Protective Equip: GOGGLES; LAB COAT Storage Color Code: Orange (General Storage

Potential Health Effects
Inhalation: Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath. Ingestion: Causes irritation to the gastrointestinal tract. Symptoms may include nausea, vomiting and diarrhea. Extremely large oral dosages may produce gastrointestinal disturbances. Calcium deficiency in blood may result in severe cases of ingestion. Skin Contact: Causes
irritation to skin. Symptoms include redness, itching, and pain.
Eye Contact: Highly irritating; may also be abrasive.
Chronic Exposure: Chronic or heavy acute ingestion may cause tooth enamel erosion. Aggravation of Pre-
existing Conditions
No adverse health effects expected.

4. First Aid Measures Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.

Ingestion: Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Get medical attention. Skin Contact: Immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.

5. Fire Fighting Measures Fire: Autoignition temperature: 1011C (1852F) As with most organic solids, fire is possible at elevated temperatures or by contact with an ignition source. Explosion: Fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard. Fire Extinguishing Media: Water spray, dry chemical, alcohol foam, or carbon dioxide. 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 Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal.

7. Handling and Storage Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. 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: - OSHA Permissible Exposure Limit (PEL): 15mg/m3 total dust, 5mg/m3 respirable fraction for nuisance dusts. - ACGIH Threshold Limit Value (TLV): 10 mg/m3 total dust containing no asbestos and < 1% crystalline silica for Particulates Not Otherwise Classified (PNOC). 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 dust/mist respirator 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 dust/mist respirator 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-facepiece 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: White granules. Odor: Odorless. Solubility: ca. 60 g/100 ml @ 20C (Anhydrous) Density: 1.665 @ 20C/4C pH: 2.2 (0.1 N sol) % Volatiles by volume @ 21C (70F): 0 Boiling Point: No information found. Melting Point: 153C (307F) Vapor Density (Air=1): No information found. Vapor Pressure (mm Hg): No information found. Evaporation Rate (BuAc=1): No information found.

10. .Stability and Reactivity Stability: Stable under ordinary conditions of use and storage. Hazardous Decomposition Products: Carbon dioxide and carbon monoxide may form when heated to decomposition. Hazardous Polymerization: Will not occur. Incompatibilities: Metal nitrates (potentially explosive reaction), alkali carbonates and bicarbonates, potassium tartrate. Will corrode copper, zinc, aluminum and their alloys. Conditions to Avoid: Heat, flames, ignition sources and incompatibles

11. Toxicological Information Oral rat LD50: 3 g/kg; irritation skin rabbit: 500 mg/24H mild; eye rabbit: 750 ug/24H severe. --------\Cancer Lists\------------------------------------------------------ ---NTP Carcinogen---

 Ingredient                         Known Anticipated IARC Category
Citric Acid (77-92-9) 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 disposal facility. 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 Not regulated.

15. Regulatory Information --------\Chemical Inventory Status - Part 1\--------------------------------- Ingredient TSCA EC Japan Australia ----------------------------------------- ---- --- ----- --------- Citric Acid (77-92-9) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\--------------------------------- --Canada-- Ingredient Korea DSL NDSL Phil. ----------------------------------------- ----- --- ---- ----- Citric Acid (77-92-9) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\---------------- -SARA 302- ------SARA 313------ Ingredient RQ TPQ List Chemical Catg. ------------------------------------ --- ----- ---- -------------- Citric Acid (77-92-9) No No No No
Federal, State & International Regulations - Part 2\---------------- -RCRA- -TSCA- Ingredient CERCLA 261.33 8(d) ----------------------------------------- ------ ------ ------ Citric Acid (77-92-9) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No SARA 311/312: Acute: Yes Chronic: No Fire: No Pressure: No Reactivity: No (Pure / Solid) Australian Hazchem Code: No information found. 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: 2 Flammability: 1 Reactivity: 0

Label Hazard Warning: WARNING! CAUSES SEVERE EYE IRRITATION. CAUSES IRRITATION TO SKIN AND RESPIRATORY TRACT. Label Precautions: Avoid contact with eyes, skin and clothing. Avoid breathing dust. Keep container closed. Use only with adequate ventilation. Wash thoroughly after handling. Label First Aid: In case of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Wash clothing before reuse. If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. In all cases, get medical attention.

Product Use: Laboratory Reagent. Revision Information: No changes. Disclaimer: