Carbon dioxide, solid
- Dry ice
- Carbonic anhydride
Carbon dioxide-air mixture is a colorless odorless gas mixture.
Refrigerant, processing of foods, preserving foods, crusting of food, cryogenic freezing of food, prodn of urea, sodium carbonate (solvay process), methanol, carbonic acid, lead carbonate, potassium carbonate, potassium bicarbonate, ammonium carbonate, ammonium bicarbonate, sodium salicylate, carbonated petroleum, hydrocarbon products, provides an inert atmosphere for fire extinguishers, refinery products, petroleum products, displacing oxygen to prevent deterioration & flavor loss, in high pressure applications, oil well stimulation, in livestock slaughtering, as fertilizer, hardening of molds for metal castings.
Registry Numbers and Inventories.
Reproductive Effector (T); Human Data (P)
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
Vapor density (air=1)
1.65 @ 70F
Odor Threshold Odor threshold Odorless
1.56 g/cm3 (20 C)
Solubility in water
20.3x10-6 pa-s at 20C
0.0162 newtons/meter @ melting point
Heat of fusion
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Containers of this material may be hazardous when emptied. Since emptied containers retain product residues (vapor, liquid, and/or solid), all hazard precautions given in the data sheet must be observed.
Wear appropriate protective gloves, clothing and goggles. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids.
Wear positive pressure self-contained breathing apparatus (SCBA).
Attempt to stop leak if without undue personnel hazard.
Gas is not affected by heat until temperature about 2000 C.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Containers may explode when heated. Ruptured cylinders may rocket.
OSHA PEL: TWA 5000 ppm (9000 mg/m3) NIOSH REL: TWA 5000 ppm (9000 mg/m3) ST 30,000 ppm (54,000 mg/m3) NIOSH IDLH: 40,000 ppm
Rapid breathing and rapid heart rate are common. In severe cases abnormally low blood pressure, apnea, and cardiac arrest develop. Various disturbances including headache, dizziness, mood disturbances, numbness of the extremities, sleepiness, mental confusion, poor judgement and coordination, and memory loss may occur. Prolonged or severe hypoxia results in unconsciousness. Prolonged asphyxia may produce CNS injury. Hemiparesis has been reported with volatile substance abuse. Cerebral edema with brainstem herniation may occur. Seizures have been reported following intentional inhalation.
Nausea, vomiting, and gastrointestinal hemorrhage may develop.
Hyperventilation may develop.
Dermal exposure may cause frostbite injury. Severe tissue burns have been reported.
Decreases in night vision, visual acuity, and visual fields (tunnel vision) may occur. Frothy mucous may be seen.
Seek medical assistance.
Administer 100% humidified supplemental oxygen with assisted ventilation as required. If hypoxia has been severe or prolonged, carefully evaluate for neurologic sequelae and provide supportive treatment as indicated.
Rewarming and a variety of topical treatments are indicated for frostbite injury. See main section for more information.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
USCG CHRIS Code
Std. Transport #