Citric acid SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Citric acid
- CAS： 77-92-9
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses： For R&D use only. Not for medicinal, household or other use.
- Uses advised against： none
Company Identification
- Company：Chemicalbook.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
- Signal word No signal word
none
none
none
none
none
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Citric acid
- Common names and synonyms: Citric acid
- CAS number: 77-92-9
- EC number: 201-069-1
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest. Refer for medical attention.
Rinse skin with plenty of water or shower. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Refer for medical attention .
Most important symptoms/effects, acute and delayed
Inhalation of dust irritates nose and throat. Contact with eyes causes irritation. (USCG, 1999)
Indication of immediate medical attention and special treatment needed, if necessary
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Organic acids and related compounds
SECTION 5: Firefighting measures
Suitable extinguishing media
Extinguish with/ water, foam, dry chem, carbon dioxide.
Specific hazards arising from the chemical
Behavior in Fire: Melts and decomposes. The reaction is not hazardous. (USCG, 1999)
Special protective actions for fire-fighters
Use water spray, powder, foam, carbon dioxide.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
Environmental precautions
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
Methods and materials for containment and cleaning up
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
SECTION 7: Handling and storage
Precautions for safe handling
NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong oxidants, strong bases, metal nitrates and metals. Dry.Crystalline citric acid, anhydrous, can be stored in dry form without difficulty, although conditions of high humidity and elevated temperatures should be avoided to prevent caking. Storage should be in tight containers to prevent exposure to moist air. Several granulations are commercially available with the larger particle sizes having less tendency toward caking.
SECTION 8: Exposure controls/personal protection
Control parameters
MAK: (inhalable fraction): 2 mg/m3; peak limitation category: I(2); pregnancy risk group: C
no data available
Appropriate engineering controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures, such as personal protective equipment (PPE)
Wear safety goggles.
Protective gloves.
Use ventilation (not if powder).
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
Solid. Crystalline.
-
Colour：
White.
-
Odour：
Odorless
-
Melting point/freezing point：
Ca. 153 °C.
-
Boiling point or initial boiling point and boiling range：
138°C(lit.)
-
Flammability：
Combustible.
-
Lower and upper explosion limit/flammability limit：
0.28-2.29 KG/CU M (DUST)
-
Flash point：
345 °C.
-
Auto-ignition temperature：
1 010 °C.
-
Decomposition temperature：
175°C
-
pH：
1.8.
-
Kinematic viscosity：
dynamic viscosity (in mPa s) = 6.5. Temperature:25.0°C. Remarks:50% aqueous solution.
-
Solubility：
greater than or equal to 100 mg/mL at 72° F (NTP, 1992)
-
Partition coefficient n-octanol/water：
log Pow = -1.72.
-
Vapour pressure：
0 Pa. Temperature:25 °C. Remarks:Extrapolated.
-
Density and/or relative density：
1.67. Temperature:20 °C.
-
Relative vapour density：
no data available
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
Decomposes above 175°C . The solution in water is a medium strong acid. Reacts with oxidants and bases. Attacks metals.
Chemical stability
no data available
Possibility of hazardous reactions
Combustible liquidDust explosion possible if in powder or granular form, mixed with air.CITRIC ACID reacts with oxidizing agents, bases, reducing agents and metal nitrates (NTP, 1992). Reactions with metal nitrates are potentially explosive. Heating to the point of decomposition causes emission of acrid smoke and fumes [Lewis].
Conditions to avoid
no data available
Incompatible materials
Potentially explosive reaction with metal nitrates.
Hazardous decomposition products
When heated to decomposition it emits acrid smoke and fumes.
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 - mouse (male/female) - 5 400 mg/kg bw. Remarks:Observation limited to 10 days.
- Inhalation: no data available
- Dermal: LD50 - rat (male/female) - > 2 000 mg/kg bw.
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
The substance is irritating to the eyes, skin and respiratory tract.
STOT-repeated exposure
The substance may have effects on the teeth. This may result in erosion.
Aspiration hazard
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed.
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: LC50 - Leuciscus idus melanotus - 440 mg/L - 48 h.
- Toxicity to daphnia and other aquatic invertebrates: LC50 - Daphnia magna - 1 535 mg/L - 24 h.
- Toxicity to algae: Toxicity Threshold - Scenedesmus quadricauda - 640 mg/L - 8 d.
- Toxicity to microorganisms: TT - Pseudomonas putida - > 10 000 mg/L - 16 h.
Persistence and degradability
AEROBIC: The biodegradability of citric acid was determined in six different tests and results found it to be well degraded in all tests(1). Citric acid achieved 93% DOC removal in a coupled units test (sludge inoculum), 85% DOC removal after 1 day in a Zahn-Wellens test (sludge inoculum), 100% DOC removal in an AFNOR test (42 days, germs inoculum simulating polluted river water), 100% DOC removal in a Sturm test (42 days, sewage treatment plant effluent), 100% DOC removal in an OECD screening test (19 days, effluent simulating surface water), and 90% BODT in a closed bottle test (30 days, effluent simulating surface water)(1). Citric acid reached 53% of its theoretical BOD in 5 days using a sludge inoculum(2). Citric acid, present at 500 mg/L, reached 46% of its theoretical oxygen demand in 12 hours using a phenol acclimated activated sludge inoculum(3).Citric acid, present at 500 mg/L, reached 98.4% of its theoretical BOD in 22 to 24 hours using an activated sludge inoculum at 2,228 mg/L(4). Citric acid (1% w/v) displayed BOD values of 6,410 and 6,040 mg/L using a defined microbial mixture and sewage inoculums, respectively(5). Citric acid, present at 10 mg/L, reached 66.4% and 67.3% of its theoretical BOD after 5 days using freshwater and seawater inoculums, respectively(6).
Bioaccumulative potential
An estimated BCF of 3 was calculated for citric acid(SRC), using a log Kow of -1.64(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
Mobility in soil
Using a structure estimation method based on molecular connectivity indices(1), the Koc of citric acid can be estimated to be 10(SRC). According to a classification scheme(2), this estimated Koc value suggests that citric acid is expected to have very high mobility in soil. The pKa of citric acid is 2.79(3), indicating that this compound will exist almost entirely in the anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4). A 2 uM solution of citric acid in Gulfstream seawater showed equilibrium absorption values of 79% and 94% onto 0.01 and 0.25 g of hydroxyapatite, respectively(5).
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
UN Number
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Transport hazard class(es)
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Packing group, if applicable
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/