Material Safety Data Sheet
WEGO CHEMICAL & MINERAL CORP
239 Great Neck Road
Great Neck, NY 11021
Date of Revision: 5/2000 CITRIC ACID, anhydrous
Section 1 - Chemical Product and Company Identification
Product/Chemical Name: Citric Acid, anhydrous
Chemical Formula: C6 H8 O7
CAS Number: 77-92-9
Other Designations: 2-Hydroxy -1,2,3-tricarboxylic acid, B-hydroxytricarballyic acid
Derivation: A tricarboxylic acid derived by mycological fermentation using crude sugars such as molasses with strains of Aspergillus niger
or yeast (Candida lypolytica). It may also be extracted from citrus fruit (lemon juice contains 5 to 8% citric acid) and pineapple waste.
General Use: Used as a food additive for many different applications including; flavor enhancer, acidifying and buffering agent, and
antioxidant; in the manufacture of alkyd resins and citric acid salts, in pharmaceuticals for preparation of effervescent antacid powders; for
cleaning and polishing metals, removing sulfur dioxide from smelter waste gases; a sequestering agent to remove trace metals, mordant to
brighten colors, in electroplating, special inks, and analytical chemistry. Used in medicine as a blood anticoagulant.
Emergency Telephone: 1-800-424-9300 (Chemtrec)
Section 2 - Composition / Information on Ingredients
% wt or % vol
Ingredient Name CAS Number EINECS/ELINCS
Citric Acid, anhydrous 77-92-9 201-069-1 100
Trace Impurities:
OSHA PEL ACGIH TLV NIOSH REL NIOS
H
Ingredient TWA STEL TWA STEL TWA STEL IDLH
15 mg/m3 none estab. 10 mg/m3 none estab. none estab. none estab. none estab.
Citric Acid, anhydrous
Section 3 - Hazards Identification
HMIS
????? Emergency Overview ????? H 2
Warning! Causes respiratory tract irritation.Causes skin irritation. Causes digestive tract F 1
irritation. May cause severe eye irritation and possible injury. R 0
PPE鈥?
Potential Health Effects 鈥燬ec. 8
Primary Entry Routes: Inhalation, ingestion, skin and eye contact.
Target Organs: Eyes, skin, respiratory tract.
Acute Effects
Inhalation: May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Citric acid decreases iron and calcium
absorption.
Eye: Contact with eyes may cause severe irritation, and possible eye burns.
Skin: May cause skin irritation.
Ingestion: May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Citric acid decreases iron and calcium
absorption.
Carcinogenicity: IARC, NTP, and OSHA do not list citric acid as a carcinogen.
Medical Conditions Aggravated by Long-Term Exposure:
Chronic Effects: Chronic or heavy acute ingestion may cause tooth enamel erosion.
Section 4 - First Aid Measures
Inhalation: Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid if cough or other symptoms appear.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids.
Get medical aid immediately.
Skin Contact: Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated
clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion: If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
CITRIC ACID, anhydrous 2
After first aid, get appropriate in-plant, paramedic, or community medical support.
Note to Physicians: Treat symptomatically and supportively.
Section 5 - Fire-Fighting Measures
Flash Point: ?? 掳F (?? 掳C) NFPA
Flash Point Method: CC?, OC?, COC?
1
Burning Rate:
0
2
Autoignition Temperature: ?? 掳F (?? 掳C)
鈥?
LEL: ??% v/v
UEL: ??% v/v
Flammability Classification:
Extinguishing Media:
Unusual Fire or Explosion Hazards:
Hazardous Combustion Products:
Fire-Fighting Instructions: Do not release runoff from fire control methods to sewers or waterways.
Fire-Fighting Equipment: Because fire may produce toxic thermal decomposition products, wear a self-contained breathing
apparatus (SCBA) with a full facepiece operated in pressure-demand or positive-pressure mode.
Section 6 - Accidental Release Measures
Spill /Leak Procedures:
Small Spills:
Large Spills
Containment: For large spills, dike far ahead of liquid spill for later disposal. Do not release into sewers or waterways.
Cleanup:
Regulatory Requirements: Follow applicable OSHA regulations (29 CFR 1910.120).
Section 7 - Handling and Storage
Handling Precautions:
Storage Requirements:
Section 8 - Exposure Controls / Personal Protection
Engineering Controls:
Ventilation: Provide general or local exhaust ventilation systems to maintain airborne concentrations below OSHA PELs
(Sec. 2). Local exhaust ventilation is preferred because it prevents contaminant dispersion into the work area by controlling it at
its source.
Administrative Controls:
Respiratory Protection: Seek professional advice prior to respirator selection and use. Follow OSHA respirator regulations
(29 CFR 1910.134) and, if necessary, wear a MSHA/NIOSH-approved respirator. Select respirator based on its suitability to
provide adequate worker protection for given working conditions, level of airborne contamination, and presence of sufficient
oxygen. For emergency or nonroutine operations (cleaning spills, reactor vessels, or storage tanks), wear an SCBA.
Warning! Air-purifying respirators do not protect workers in oxygen-deficient atmospheres. If respirators are used, OSHA
requires a written respiratory protection program that includes at least: medical certification, training, fit-testing, periodic
environmental monitoring, maintenance, inspection, cleaning, and convenient, sanitary storage areas.
Protective Clothing/Equipment: Wear chemically protective gloves, boots, aprons, and gauntlets to prevent prolonged or
repeated skin contact. Wear protective eyeglasses or chemical safety goggles, per OSHA eye- and face-protection regulations
(29 CFR 1910.133). Contact lenses are not eye protective devices. Appropriate eye protection must be worn instead of, or in
conjunction with contact lenses.
Safety Stations: Make emergency eyewash stations, safety/quick-drench showers, and washing facilities available in work area.
Contaminated Equipment: Separate contaminated work clothes from street clothes. Launder before reuse. Remove this
material from your shoes and clean personal protective equipment.
Comments: Never eat, drink, or smoke in work areas. Practice good personal hygiene after using this material, especially before
eating, drinking, smoking, using the toilet, or applying cosmetics.
Page 2 of 4
CITRIC ACID, anhydrous 3
Section 9 - Physical and Chemical Properties
Physical State: solid Water Solubility: Very soluble
Appearance and Odor: white crystals/odorless Other Solubilities: ether 2.17, chloroform 0.007, amyl alcohol
15.43, amyl acetate 5.98, ethyl acetate 5.28. At 19 掳C; soluble in
Odor Threshold:
methanol 197 and propanol 62.8. It is insoluble in benzene.
Vapor Pressure: Not applicable.
Boiling Point: Decomposes
Vapor Density (Air=1): Not applicable.
Freezing/Melting Point: (153 掳C)
Formula Weight: 192.12
Bulk Density: 56.2 lb/ft 3 Viscosity (50% aqueous soln.): 6.5 cP at 77 掳F (25 掳C)
Refractive Index: 1.493 to 1.509 at 68 掳F (20 掳C)
Specific Gravity (H2 O=1, at 4 掳C): 1.7
pH (0.1 N solution): 2.2
Section 10 - Stability and Reactivity
Stability: Citric acid is stable at room temperature in closed containers under normal storage and handling conditions. Anhydrous
citric acid readily absorbs moisture from air.
Polymerization: Hazardous polymerization cannot occur.
Chemical Incompatibilities: Include potassium tartrate, alkali and alkaline earth carbonates and bicarbonates, acetates, sulfites, and metal
nitrates (potentially explosive reaction). Citric acid corrodes copper, zinc, aluminum and their alloys.
Conditions to Avoid: Dispersing powder in the air, contact with incompatibles, and exposure to heat and ignition sources.
Hazardous Decomposition Products: Thermal oxidative decomposition of citric acid can produce acrid, irritating smoke and carbon
monoxide, carbon dioxide.
Section 11- Toxicological Information
Toxicity Data:*
Rabbit, eye: 750 mg/24 hr caused severe irritation. Acute Inhalation Effects:
Human, inhalation, TCLo : ?? ppm
Rabbit, skin: 500 mg/24 hr caused moderate
irritation. Acute Oral Effects:
Rat, oral, LD 50 : 6730 mg/kg
Chronic Effects:
Carcinogenicity:
Mutagenicity: No data available.
Teratogenicity: No data available.
* See NIOSH, RTECS (GE7350000), for additional toxicity data.
Section 12 - Ecological Information
Ecotoxicity: Acute aquatic effects: 96-hour LC50; Fathead minnow: GT 1000 mg/L. 96-hour LC50; Water flea: GT 1000 mg/L.
48-hour LC50; Golden orfe (minnow): 760 mg/L.
Environmental Fate: This chemical is expected to be readily biodegradable and is not likely to bioconcentrate.
Environmental Degradation:
Soil Absorption/Mobility:
Section 13 - Disposal Considerations
Disposal: Contact your supplier or a licensed contractor for detailed recommendations. Follow applicable Federal, state, and
local regulations.
Section 14 - Transport Information
DOT Transportation Data (49 CFR 172.101):NOT REGULATED
Shipping Name: Packaging Authorizations Quantity Limitations
Shipping Symbols: a) Exceptions: a) Passenger, Aircraft, or Railcar:
Hazard Class: b) Non-bulk Packaging: b) Cargo Aircraft Only:
ID No.: c) Bulk Packaging:
Packing Group: Vessel Stowage Requirements
Label: a) Vessel Stowage:
Special Provisions (172.102): b) Other:
Page 3 of 4
CITRIC ACID, anhydrous 4
Section 15 - Regulatory Information
TSCA
CAS# 77-92-9 is listed on the TSCA inventory.
Health & Safety Reporting List
None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
None of the chemicals in this material have a SNUR under TSCA.
SARA
Section 302 (RQ)
None of the chemicals in this material have an RQ.
Section 302 (TPQ)
None of the chemicals in this product have a TPQ.
SARA Codes
CAS # 77-92-9: acute.
Section 313
No chemicals are reportable under Section 313.
Clean Air Act:
This material does not contain any hazardous air pollutants. This material does not contain any Class 1 Ozone depletors.
This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
None of the chemicals in this product are listed as Hazardous Substances under the CWA. None of the chemicals in this product
are listed as Priority Pollutants under the CWA. None of the chemicals in this product are listed as Toxic Pollutants under the
CWA.
OSHA: None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
CAS# 77-92-9 is not present on state lists from CA, PA, MN, MA, FL, or NJ.
California No Significant Risk Level: None of the chemicals in this product are listed.
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
Not available.
Risk Phrases: Phrases:
Section 16 - Other Information
Disclaimer: All information, recommendations and suggestions appearing herein are based upon sources believed to be reliable:
However, it is the users responsibility to determine the safety, toxicity and suitability for its own use of this product. WEGO
CHEMICAL & MINERAL CORP. DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE USE BY OTHERS OF
THIS PRODUCT.
Page 4 of 4
|