CARBON DIOXIDE
SYNONYMS:
ACID
GAS; ANHYDRIDE CARBONIQUE (French); BLUE SHIELD 6; BLUE SHIELD 7; BLUE SHIELD
8; CARBONIC ACID GAS; CARBONIC ANHYDRIDE; CARDICE; CHEMTRANIC FLUX OFF; DIOXIDO
de CARBONO (Spanish); DRICOLD; DRY ICE (SOLID); EINECS No. 2 0 4 - 6 9 6 - 9 ;
KOHLENDIOXYD (German); KOHLENSAURE (German); 882 LASER GAS; LASER GAS 920L;
POLY I GAS; POLY II GAS
IDENTIFICATION:
CAS:
124-38-9
DOT ID:
UN1013
(gas or compressed gas); UN1845 (solid, dry ice); UN2187 (refrigerated liquid)
Hazard class or Division:
2.2 (NON-FLAMMABLE, NON-POISONOUS GAS); 9
[MISC. HAZARDOUS MATERIALS (solid)]
ERG Guide:
120
Formula:
CO2
RTECS No:
FF6400000
Properties:
Nonflammable,
liquefied compressed gas, cryogenic liquid or white solid (dry ice; flakes or
cubes) at low temperature. Colorless. Odorless; poor warning qualities. Solid
sinks and "boils" in water; insoluble. Visible vapor cloud is
produced. Gas is heavier than air; will collect in low areas.
Uses:
Welding: as a shielding gas; foundry:
hardening cores and molds.
HEALTH & SAFETY INFORMATION
• IDLH:
40,000
ppm
• Odor threshold:
Less than 1–135,420 mg/m3
•
OSHA Table Z-1 Air Contaminant
• NIOSH Criteria Document
: NIOSH 76-194
•
Inhalation of high concentrations of this gas may cause hyperventilation and
loss of consciousness. Rapid evaporation of the liquid may cause frostbite.
Chronic exposures to increased levels of carbon dioxide in the atmosphere
produced changes in blood and impaired function of the adrenal glands.
Exposure Limits:
•
ACGIH TLV: 5000 ppm TWA; 30,000 ppm STEL
•
OSHA PEL: 5000 ppm/9000 mg/m3 TWA
•
NIOSH REL: 5000 ppm/9000 mg/m3 TWA; 30,000 ppm/54,000 mg/m3 STEL
•
DFG MAK: 5000 ppm/9100 mg/m3
Respirator:
40,000
ppm: SA (any supplied-air
respirator)
P
SCBAF (any self-contained breathing apparatus
with a full facepiece).
Emergency
or Planned Entry into Unknown Concentrations or IDLH Conditions
SCBAF:PD,PP (any self-contained breathing
apparatus that has a full facepiece and is operated in a pressure-demand or
other positivepressure mode)
P
SAF:PD,PP:ASCBA (any suppliedair
respirator that has a full facepiece and is operated in a pressure-demand or
other positive-pressure mode in combination with an auxiliary self-contained
breathing apparatus operated in a pressure-demand or other positive- pressure
mode).
Escape:
SCBAE (any appropriate escape-type,
self-contained breathing apparatus)
Reactivity:
Contact
with water forms carbonic acid.
Incompatible
with acrylaldehyde, amines, anhydrous
ammonia,
cesium monoxide, lithium, metal dusts,