Univar USA Inc.
17425 NE Union Hill Road
Redmond, WA 98052
(425) 889-3400
For Emergency Assistance involving chemicals call - CHEMTREC (800) 424-9300
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The Version Date and Number for this MSDS is : 12/02/2005 - #007
PRODUCT NAME: CITRIC ACID, SOLUTION
MSDS NUMBER: HX17030
DATE ISSUED: 11/21/2005
SUPERSEDES: 6/22/2005
ISSUED BY: 006768
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Material Safety Data Sheet
Section 1 - Chemical Product and Company Identification
Chemical Name: Citric Acid, Solution
Product Use: For Manufacturing Use
Synonyms: 1,2,3-Propanetricarboxylic acid, 2-hydroxy-; 2-Hydroxy-1,2,3-
propanetricarboxylic acid; Propane-1,2,3-tricarboxylic acid, 2-hydroxy-
;
beta-hydroxytricarballylic acid.
Supplier Information
Distributed by:
UNIVAR USA
6100 Carillon Point
Kirkland, WA 98033
425-889-3400
Emergency: 1-800-424-9300 or (703)527-3887
General Comments: FOR MANUFACTURING USE ONLY; NOT TO BE USED AS A
PESTICIDE.
NOTE: Emergency telephone numbers are to be used only in the event of
chemical emergencies involving a spill, leak, fire, exposure, or
accident
involving chemicals. All non-emergency questions should be directed to
customer service. * * * Section 2 - Composition / Information on
Ingredients
CAS # Component Percent
77-92-9 Citric Acid 30-50%
7732-18-5 Water Balance
Component Information/Information on Non-Hazardous Components
This product is considered hazardous under 29 CFR 1910.1200 (Hazard
Communication).
Section 3 - Hazards Identification
Emergency Overview
Citric Acid Solution is a clear or yellow to brown liquid, with a faint
sugary odor. Citric Acid is moderately to severely irritating to eyes,
and moderately irritating to skin, and respiratory tract. Citric Acid
Solution is not combustible. Use methods suitable for containing
(diking) the solution in case of fire or spill. Firefighters should
wear full protective equipment when fighting a fire involving this
product.
Hazard Statements
DANGER! THIS SOLUTION CAUSES EYE, SKIN, AND RESPIRATORY TRACT
IRRITATION OR BURNS. MAY CAUSE ALLERGIC SKIN SENSITIZATION REACTION. Do
not breath or ingest mists, vapors, or aerosols. Do not allow contact
with eyes, skin, or clothing. Keep container closed. Use only with
adequate ventilation. Wash thoroughly after handling.
Potential Health Effects: Eyes
This solution may cause severe irritation to the eyes, with symptoms
that include redness, tearing, and pain. Concentrated solutions may be
corrosive to the eyes and cause corneal ulcerations.
Potential Health Effects: Skin
This product may cause moderate irritation of the skin. Citric Acid may
cause allergic contact dermatitis with prolonged or repeated contact in
sensitive individuals.
Potential Health Effects: Ingestion
Citric Acid may cause mild gastrointestinal irritation, with symptoms
including nausea, diarrhea, vomiting, and abdominal pain. Concentrated
solutions may cause necrotic and ulcerative lesions on oral mucous
membranes. Chronic ingestion of high concentration Citric Acid can
result in erosion of tooth enamel. Repeated ingestion of this solution
can result in sensitization to the sun, causing sunburn.
Potential Health Effects: Inhalation
Aerosols and mists from solutions may cause mild to moderate irritation
of the nose and throat. Overexposure could cause coughing, sneezing,
and labored breathing.
Other Potential Health Effects
Chronic, high concentration overexposure to Citric Acid can result in a
reduction of plasma calcium concentration, which can lead to cardiac
arrhythmias, reduced cardiac output and, in severe cases, death.
HMIS Ratings: Health Hazard: 2* Fire Hazard: 0 Physical Hazard: 0
Hazard Scale: 0 = Minimal 1 = Slight 2 = Moderate 3 = Serious 4 =
Severe * = Chronic hazard
Section 4 - First Aid Measures
First Aid: Eyes
Immediately flush the contaminated eye with plenty of water for 15
minutes. Get medical attention if symptoms of pain, swelling, or
tearing exist after flushing the eyes.
First Aid: Skin
For skin contact, immediately wash extremely thoroughly with soap and
water. Get medical attention if irritation develops or persists.
First Aid: Ingestion
DO NOT INDUCE VOMITING. Have victim rinse mouth with water, if
conscious. Never give anything by mouth to a victim who is unconscious
or having convulsions. Contact a physician or poison control center
immediately.
First Aid: Inhalation
Remove source of contamination or move victim to fresh air. Apply
artificial respiration if victim is not breathing. Do not use mouth-to-
mouth method if victim ingested or inhaled the substance; induce
artificial respiration with the aid of a pocket mask equipped with a
one-way valve or other proper respiratory medical device. Administer
oxygen if breathing is difficult. Get immediate medical attention.
First Aid: Notes to Physician
There is no specific antidote. Care is symptomatic and supportive.
Section 5 - Fire Fighting Measures
Flash Point: Not applicable.
Method Used: Not applicable.
Upper Flammable Limit (UEL Not applicable.
Lower Flammable Limit (LEL): Not applicable.
Auto Ignition: Not applicable.
Flammability Classification: Not applicable.
Rate of Burning: Not applicable.
General Fire Hazards
Not considered flammable although if allowed to evaporate to dryness,
residue may burn in presence of strong ignition source.
Hazardous Combustion Products
Applies to residue: Carbon dioxide and carbon monoxide are normal
products of combustion. Incomplete combustion may produce irritating
fumes and acrid smoke.
Extinguishing Media
Water, foam, dry chemical, or carbon dioxide. Dike and collect water
used to fight fire; runoff may cause damage.
Fire Fighting Equipment/Instructions
Firefighters should wear full protective clothing including self
contained breathing apparatus.
NFPA Ratings: Health: 2 Fire: 0 Reactivity: 0 Other:
Hazard Scale: 0 = Minimal 1 = Slight 2 = Moderate 3 = Serious 4 =
Severe
Section 6 - Accidental Release Measures
Containment Procedures
Stop the flow of material, if this can be done without risk. Contain
the discharged solution; dike runoff to prevent spill from
contaminating storm drains, sewers, soil or groundwater waterways.
Clean-Up Procedures
Wear appropriate protective equipment and clothing during clean-up.
Addition of sodium bicarbonate or lime (soda ash) will neutralize
Citric Acid and precipitate calcium citrate. Test area of spill with pH
paper to assure neutralization. Thoroughly wash the area after a spill
clean-up with large quantities of water, flush to drain.
Evacuation Procedures
Evacuate the area promptly and keep upwind of the spilled material.
Isolate the spill area to prevent people from entering. Keep
incompatible materials away from spilled solution. In case of large
spills, follow all facility emergency response procedures.
Special Procedures
Remove soiled clothing and launder before reuse. Avoid all skin contact
with the spilled material. Have emergency equipment readily available.
Section 7 - Handling and Storage
Handling Procedures
All employees who handle this material should be trained to handle it
safely. Do not breathe vapors or mists. Avoid all contact with skin and
eyes. Use this product only with adequate ventilation. Wash thoroughly
after handling.
Storage Procedures
Keep container tightly closed when not in use. Keep containers upright,
do not drop, roll or skid. Store containers in a cool, dry location,
away from direct sunlight, sources of intense heat, or where freezing
is possible. Material should be stored in secondary containers or in a
diked area, as appropriate. Store containers away from incompatible
chemicals (see Section 10, Stability and Reactivity). Storage areas
should be made of fire- and corrosion-resistant materials. Post warning
and "NO SMOKING" signs in storage and use areas, as appropriate. Use
corrosion-resistant structural materials, lighting, and ventilation
systems in the storage area. Floors should be sealed to prevent
absorption of this material. Inspect all incoming containers before
storage, to ensure containers are properly labeled and not damaged.
Have appropriate extinguishing equipment in the storage area (i.e.,
sprinkler system, portable fire extinguishers).
Empty containers may contain residual particulates; therefore, empty
containers should be handled with care. Never store food, feed, or
drinking water in containers which held this product. Keep this
material away from food, drink and animal feed. Do not store this
material in open or unlabeled containers. Limit quantity of material
stored. Wipe down area of use periodically as area can become sticky.
Section 8 - Exposure Controls / Personal Protection
Exposure Guidelines
A: General Product Information
No exposure guidelines have been established.
B: Component Exposure Limits
ACGIH, OSHA, and NIOSH have not developed exposure limits for any of
this product's components.
Engineering Controls
Use mechanical ventilation such as dilution and local exhaust. Use a
corrosion-resistant ventilation system and exhaust directly to the
outside. Supply ample air replacement.
PERSONAL PROTECTIVE EQUIPMENT
The following information on appropriate Personal Protective Equipment
is provided to assist employers in complying with OSHA regulations
found in 29 CFR Subpart I (beginning at 1910.132). Please reference
applicable regulations and standards for relevant details.
Personal Protective Equipment: Eyes/Face
Faceshields and goggles should be worn when working with solutions of
Citric Acid. If necessary, refer to U.S. OSHA 29 CFR 1910.133.
Personal Protective Equipment: Skin
Use impervious gloves. Butyl rubber, natural rubber, neoprene, nitrile
rubber, polyethylene, or PVC are recommended. If necessary, refer to
U.S. OSHA 29 CFR 1910.138.
Personal Protective Equipment: Respiratory
None required where adequate ventilation conditions exist. If airborne
concentration is high, use an appropriate respirator with acid
dust/mist pre-filters. If respiratory protection is needed, use only
protection authorized in the U.S. Federal OSHA Standard (29 CFR
1910.134), applicable U.S. State regulations. Oxygen levels below 19.5%
are considered IDLH by OSHA. In such atmospheres, use of a full-
facepiece pressure/demand SCBA or a full facepiece, supplied air
respirator with auxiliary self-contained air supply is required under
OSHA's Respiratory Protection Standard (1910.134-1998).
Personal Protective Equipment: General
Have an eyewash fountain and safety shower available in the work area.
Use good hygiene practices when handling this material including
changing and laundering work clothing after use. Wash hands thoroughly
after handling material. Do not eat, drink, or smoke in work areas.
Section 9 - Physical & Chemical Properties
Physical Properties: Additional Information
The data provided in this section are to be used for product safety
handling
purposes. Please refer to Product Data Sheets, Certificates of
Conformity or Certificates of Analysis for chemical and physical data
for determinations of quality and for formulation purposes.
Appearance: Colorless or yellow to brown
Odor: Slight sugar odor.
Physical State: Liquid
pH: Approx 2.5 or lower
Vapor Pressure: Not available.
Vapor Density: Not available.
Boiling Point: 104 deg C (219 deg F)
Melting Point: Not applicable.
Solubility (H20): 162 g/100 mL water at 25 deg C
Specific Gravity: 1.24 @ 25 deg C (77 deg F)
Freezing Point: 0 deg C (32 deg F)
Particle Size: Not applicable.
Softening Point: Not applicable.
Evaporation Rate: Similar to water.
Viscosity: 7.0 centipoise at 25 deg C
Bulk Density: Not applicable.
Percent Volatile: Not available.
Molecular Weight: 192.13 (Citric Acid, Anhydrous)
Chemical Formula: C6H807 (Citric Acid, Anhydrous)
Section 10 - Chemical Stability & Reactivity Information
Chemical Stability
Stable under normal conditions. Dilute aqueous solutions of Citric Acid
may ferment if left standing for long period of time.
Chemical Stability: Conditions to Avoid
Heat, moisture and incompatible materials.
Incompatibility
Potentially explosive reaction with metal nitrates, strong bases, and
oxidizers. Citric Acid is incompatible with reducing agents.
Citric Acid Solution is corrosive to brass, copper, zinc, aluminum and
their alloys, lead, cast iron and steel (not stainless steel).
Hazardous Decomposition
Residue: Carbon dioxide and carbon monoxide are normal products of
combustion. Incomplete combustion may produce irritating fumes and
acrid smoke.
Hazardous Polymerization
Hazardous polymerization will not occur.
Section 11 - Toxicological Information
Acute and Chronic Toxicity
A: General Product Information
Citric Acid has been reported to have allergenic properties, and might
cause allergic contact dermatitis and sensitization to the sun.
Irritation of the skin, eyes, and gastrointestinal tract may occur, but
should not require extensive therapy beyond dilution/irrigation. Vapors
and solution may cause severe irritation to the eyes, with symptoms
that include redness, tearing, and pain. Concentrated solutions may be
corrosive to the eyes and cause corneal ulcerations. This product may
cause moderate irritation of the skin. Citric Acid may cause mild
gastrointestinal irritation, with symptoms including nausea, diarrhea,
vomiting, abdominal pain. Concentrated solutions may cause necrotic and
ulcerative lesions on oral mucous membranes. Dusts and mists from
solutions may cause mild to moderate irritation to the nose and
throat. Higher concentrations could cause coughing, sneezing, and
labored breathing.
Chronic, high concentration overexposure to Citric Acid can result in a
reduction of plasma calcium concentration, which can lead to cardiac
arrhythmias, reduced cardiac output and, in severe cases, death.
B: Component Analysis - LD50/LCso
Citric Acid (77-92-9)
LD50 (Oral-Rat) 3 gm/kg; LD50 (Oral-Mouse) 5040 mg/kg: Lungs, Thorax,
or Respiration changes; Musculoskeletal changes; LD50 (Subcutaneous-
Rat) 5500 mg/kg; LD50 (Subcutaneous-Mouse) 2700 mg/kg: Lungs, Thorax,
or Respiration changes; Musculoskeletal changes; LD50 (Intraperitoneal-
Rat) 290 mg/kg; LD50(Intraperitoneal-Mouse) 903 mg/kg; LD50
(Intravenous-Mouse) 42 mg/kg: Behavioral: convulsions or effect on
seizure threshold; Lungs, Thorax, or Respiration: cyanosis;
Gastrointestinal: changes in structure or function of salivary glands;
LD50 (Intravenous-Rabbit) 330 mg/kg
B: Component Analysis - TDLo/TCLo/LD/LDLo
Citric Acid (77-92-9)
LDLo (Oral-Rabbit) 7 gm/kg: Behavioral: tremor, convulsions or effect
on seizure threshold, muscle contraction or spasticity
Carcinogenicity
A: General Product Information
No information identified.
B: Component Carcinogenicity
None of this product's components are listed by ACGIH, IARC, OSHA,
NIOSH, or NTP.
Epidemiology
No information available.
Neurotoxicity
Has not been identified.
Mutagenicity
Citric Acid would not be expected to be genotoxic at physiological
concentrations because it is a normal metabolite. It was not mutagenic
in Salmonella typhimurium, and did not induce chromosome aberrations in
cultured Chinese hamster fibroblast cells.
Teratogenicity
Citric Acid did not cause reproductive effects when tested in
experimental animals. The sodium salt did not cause birth defects in
rats. When given to rats at 1.2% in the diet over 2 generations, it did
not affect reproduction. It did not affect litter size or survival of
mice with prenatal exposure to up to 5% in the diet.
Other Toxicological Information
Persons with pre-existing eye, skin, respiratory, or allergic
conditions may be more sensitive.
Section 12 - Ecological Information
Ecotoxicity
A: General Product Information
Water Solubility = 59.2% (20 deg C); 84% (100 deg C). Biological Oxygen
Demand (BOD): 40%, 5 days; 60%, 10-20 days. Citric Acid biodegrades
quite rapidly. It is dangerous to aquatic life in high concentrations.
Lowers pH in water but does not dissociate to any great extent.
Food Chain Concentration Potential: Very Low
B: Ecotoxicity
TLm (immersion-shore crab) 48 hours = 160 ppm (salt water); TLm
(immersion-goldfish) 4 hr = 894 ppm (fresh water/ killed); ECo
(Pseudomonas putida bacteria) 16 hours = >10,000 mg/L; EC0
(Microcystis aeruginosa algae) 8 days = 80 mg/L; ECo (Scenedesmus
quadricauda green algae) 7 days = 640 mg/L; ECo(Entosiphon sulcatum
protozoa) 72 hours = 485 mg/L; ECo (Uronema parduczi Chatton-Lwoff
protozoa) = 622 mg/L; LD0 (Daphnia magna) = 80 mg/L, long-time exposure
in soft water; LD0 (goldfish) = 625 mg/L, long-time exposure in hard
water; LD100 (goldfish) = 894 mg/L, long-time exposure in hard water;
LD100 (Daphnia magna) 120 mg/L long-time exposure in soft water; toxic
(Daphnia) = 100 mg/L; period of survival at pH 4.0 (goldfish) 48 hours
= 894 mg/L; period of survival at pH 4.5 (goldfish) 48 hours = 625 mg/L
Environmental Fate
Citric Acid is a naturally occurring chemical and is biodegradable.
Octanol/Water Partition Coefficient Log P (oct): -1.72.
Section 13 - Disposal Considerations
US EPA Waste Number & Descriptions
A: General Product Information
Concentrated solutions may be considered D002 wastes (corrosive) by
RCRA. Wastes should be tested prior to disposal to determine
classification.
B: Component Waste Numbers
No EPA Waste Numbers are applicable for this product's components.
Disposal Instructions
Review federal, provincial, and local government requirements prior to
disposal.
Section 14 - Transportation Information
US DOT Information
Shipping Name: Not Regulated
Section 15 - Regulatory Information
US Federal Regulations
A: General Product Information
No additional information.
B: Component Analysis
None of this product's components are listed under SARA Section 302 (40
CFR 355 Appendix A), SARA Section 313 (40 CFR 372.65), or CERCLA (40
CFR 302.4).
SARA 302 (EHS TPQ) There are no specific Threshold Planning Quantities
for Citric Acid. The default Federal MSDS submission and inventory
requirement filing threshold of 10,000 lbs. (4,540 kg) therefore
applies, per 40 CFR 370.20.
C: Sara 311/312 Tier II Hazard Ratings: Immediate
Chronic
Component CAS # Fire Reactivity Pressure Health Health
Hazard Hazard Hazard Hazard Hazard
Citric Acid 77-92-9 No No No Yes Yes
State Regulations
A: General Product Information
Other state regulations may apply.
B: Component Analysis - State Citric Acid and Water are listed as
follows:
NJ4: New Jersey other (included in 5 predominant ingredients >1%); PA3:
Pennsylvania (non-hazardous - present at 3% or greater)
Component CAS # CA FL MA MN NJ PA
Citric Acid 77-92-9 No No No No Yes Yes
Other Regulations
A: General Product Information No additional information.
B: Component Analysis - Inventory
Component CAS # TSCA DSL EINECS
Citric Acid 77-92-9 Yes Yes Yes
C: Component Analysis - WHMIS IDL
The following components are identified under the Canadian Hazardous
Products Act Ingredient Disclosure List:
Component CAS # Minimum Concentration
Citric Acid 77-92-9 1% item 409 (80)
ANSI Labeling (Z129.1):
DANGER! CORROSIVE. CAUSES EYE, SKIN, AND RESPIRATORY TRACT IRRITATION
OR BURNS. MAY CAUSE ALLERGIC SKIN SENSITIZATION REACTION. Do not taste
or swallow. Do not get on skin or in eyes. Avoid breathing aerosols or
mists. Keep container closed. Use only with adequate ventilation. Wash
thoroughly after handling. Keep from contact with clothing. Wear
gloves, goggles, faceshields, suitable body protection, and NIOSH/MSHA-
approved respiratory protection, as appropriate. FIRST-AID: In case of
contact, immediately flush skin or eyes with plenty of water for at
least 15 minutes while removing contaminated clothing and shoes. If
inhaled, remove to fresh air. If ingested, do not induce vomiting. Get
medical attention. IN CASE OF FIRE: Use water fog, dry chemical, CO2,
or "alcohol" foam. IN CASE OF SPILL: Neutralize spill and wash area.
Place residue in suitable container. Consult Material Safety Data Sheet
for additional information.
For Additional Information:
Contact: MSDS Coordinator - Univar USA
During business hours, Pacific Time - (425) 889-3400
NOTICE
Univar USA expressly disclaims all express or implied warranties of merchantibility and
fitness for a particular purpose with respect to the product or information provided herein,
and shall under no circumstances be liable for incidental or consequential damages.
Do not use ingredient information and/or ingredient percentages in this MSDS as a
product specification. For product specification information refer to a Product
Specification Sheet and/or a Certificate of Analysis. These can be obtained from your
local Univar USA Sales Office.
All information appearing herein is based upon data obtained from the manufacturer
and/or recognized technical sources. While the information is believed to be accurate,
Univar USA makes no representations as to its accuracy or sufficiency. Conditions of use
are beyond Univar USA's control. Therefore, users are responsible to verify this data
under their own operating conditions to determine whether the product is suitable for
their particular purposes, and they assume all risks of their use, handling, and disposal of
the product or from the publication or use of, or reliance upon, information contained
herein. This information relates only to the product designated herein and does not relate
to its use in combination with any other material or in any other process.
END OF MSDS
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