International Chemical Safety Cards

CITRIC ACID ICSC: 0855
CITRIC ACID
2-Hydroxy-1,2,3-propanetricarboxylic acid
beta-Hydroxytricarballylic acid
Anhydrous citric acid
C6H8O7/CH2COOH-C(OH)COOH-CH2COOH
Molecular mass: 192.1
CAS # 77-92-9
RTECS # GE7350000
ICSC # 0855
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE
PREVENT DISPERSION OF DUST!

  • INHALATION
    		• Cough. Shortness of breath. Sore throat.
    		Ventilation (not if powder).
    		Fresh air, rest. Refer for medical attention.
  • SKIN
    		• Redness.
    		Protective gloves.
    		Rinse skin with plenty of water or shower. Refer for medical attention.
  • EYES
    		• Redness. Pain.
    		Safety goggles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION
    		• Abdominal pain. Sore throat.
    		Do not eat, drink, or smoke during work.
    		Rinse mouth. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water (extra personal protection: P2 filter respirator for harmful particles).
    		Separated from strong oxidants, strong bases, metal nitrates and metals. Dry.

    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0855 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    CITRIC ACID ICSC: 0855

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    PHYSICAL STATE; APPEARANCE:
     COLOURLESS CRYSTALS

    PHYSICAL DANGERS:
     Dust explosion possible if in powder or granular form, mixed with air.

    CHEMICAL DANGERS:
     The substance decomposes on heating above 175░C. The solution in water is a medium strong acid. Reacts with oxidants and bases. Attacks metal.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV not established.
    MAK not established.


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation and by ingestion.

    INHALATION RISK:
     Evaporation at 20░C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes, the skin and the respiratory tract.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     The substance may have effects on the teeth , resulting in erosion.
    PHYSICAL
    PROPERTIES
    Decomposes below boiling point at 175░C
    Melting point: 153░C
    Density: 1.7 g/cm3
    Solubility in water, g/100 ml at 20░C: 59
    		 Flash point: 100░C
    Explosive limits, vol% in air: 0.28-2.29
    Octanol/water partition coefficient as log Pow: -1.7
    ENVIRONMENTAL
    DATA
    N O T E S
    ADDITIONAL INFORMATION


    ICSC: 0855 CITRIC ACID
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.