ICSC 0855 - CITRIC ACID

« back to the search result list

CITRIC ACID	ICSC: 0855 (March 1998)
2-Hydroxy-1,2,3-propanetricarboxylic acid beta-Hydroxytricarballylic acid Anhydrous citric acid

CAS #: 77-92-9

EC Number: 201-069-1

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Finely dispersed particles form explosive mixtures in air.	NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.	Use water spray, powder, foam, carbon dioxide.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Shortness of breath. Sore throat.	Use 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.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Sore throat.	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
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.	According to UN GHS Criteria Transportation UN Classification
STORAGE
Separated from strong oxidants, strong bases, metal nitrates and metals. Dry.
PACKAGING

CITRIC ACID

ICSC: 0855

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS CRYSTALS. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers Decomposes above 175°C . The solution in water is a medium strong acid. Reacts with oxidants and bases. Attacks metals.	Formula: C₆H₈O₇ / CH₂COOH-C(OH)COOH-CH₂COOH Molecular mass: 192.1 Decomposes at 175°C Melting point: 153°C Solubility in water, g/100ml 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

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air.

Chemical dangers
Decomposes above 175°C . The solution in water is a medium strong acid. Reacts with oxidants and bases. Attacks metals.

Formula: C₆H₈O₇ / CH₂COOH-C(OH)COOH-CH₂COOH
Molecular mass: 192.1
Decomposes at 175°C
Melting point: 153°C
Solubility in water, g/100ml 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

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract.	Inhalation risk Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed. Effects of long-term or repeated exposure The substance may have effects on the teeth. This may result in erosion.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion.

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract.

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of long-term or repeated exposure
The substance may have effects on the teeth. This may result in erosion.

OCCUPATIONAL EXPOSURE LIMITS
MAK: (inhalable fraction): 2 mg/m³; peak limitation category: I(2); pregnancy risk group: C

ENVIRONMENT

NOTES

ADDITIONAL INFORMATION

EC Classification

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.