MATERIAL
Linde Gas LLC (216) 642-6600
LindeGAS, LLC (216) 642-6600
AGA Gas INC. SAFETY
P.O. Box 94737 WOODS BLVD
P.O. Box 94737
6055 ROCKSIDE DATA SHEET
Cleveland, Ohio 44101
Cleveland, Ohio 44101
P.O. BOX 94737
www.us.lindegas.com
www.us.lindegas.com
CLEVELAND, OH 44101-4737 No. 160
PRODUCT NAME CAS #
See Page 4
MISON庐 20
DOT I.D. No.:
UN 1956
TRADE NAME AND SYNONYMS
Compressed gas, n.o.s.
DOT Hazard Class:
Division 2.2
CHEMICAL NAME AND SYNONYMS
Less than 300 Molar PPM Nitric Oxide and >300 Molar PPM NO and
Formula
20 Molar % Carbon Dioxide in Argon 20 Molar % C02 in Air
ISSUE DATES AND REVISIONS Chemical Family:
Welding Gas Mixture
Revised January 1995
HEALTH HAZARD DATA
TIME WEIGHTED AVERAGE EXPOSURE LIMIT
NO = 25 Molar PPM, CO; = 5,000 Molar PPM with an STEL of 30,000 Molar PPM; argon =
simple asphyxiant (ACGIH 1994-1995). (Continued on Page 4)
SYMPTOMS OF EXPOSURE
Concentrations of 20-30 percent of this mixture when inhaled with adequate oxygen in the air will cause an increase in
the respiratory rate. Higher concentrations will cause headache, nausea and eventual unconsciousness.
TOXICOLOGICAL PROPERTIES
Carbon dioxide is the most powerful cerebral vasodilator known. Inhaling large concentrations causes rapid circulatory
insufficiency leading to coma and death. Chronic harmful effects are not known from repeated inhalation of low
(20-30%) concentrations of this mixture.
Neither nitric oxide, carbon dioxide or argon are listed in the IARC, NTP or by OSHA as a carcinogen or potential
carcinogen.
Persons in ill health where such lilness would be aggravated by exposure to this mixture should not be allowed to work
with or handle this product.
RECOMMENDED FIRST AID TREATMENT
PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF OVEREXPOSURE TO THIS MIXTURE.
RESCUE PERSONNEL SHOULD BE EQUIPPED VIITH SELF-CONTAINED BREATHING APPARATUS.
Inhalation: Conscious persons should be assisted to an uncontaminated area and inhal fresh air. Quick removal from
the contaminated area is most important. Unconscious persons should be moved to an uncontaminated area, given
assisted respiration and supplemental oxygen. Further treatment should be symptomatic and supportive.
Information contained in this material safety data sheet is offered without charge for use by technically qualified personnel at their discretion and
risk. All statements, technical information and recommendations contained herein are based on tests and data which we believe to be reliable, but
the accuracy or completeness thereof is not guaranteed and no warranty of any kind is made with respect thereto. This information is not intended
as a license to operate under or a recommendation to practice or infringe any patent of this Company or others covering any process, composition
of matter or use.
Since the Company shall have no control of the use of the product described herein, the Company assumes no liability for loss or damage incurred
from the proper or improper use of such product.
MISON庐 20
HAZARDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES
None
PHYSICAL DATA
BOILING POINT LIQUID DENSITY AT BOILING POINT
See Page 4 See Page 4
VAPOR PRESSURE GAS DENSITY AT 700F. 1 atm
See Page 4 .106 1b/ft3 (1.69 kg/m3)
SOLUBILITY IN WATER FREEZING POINT
CO2 = soluble, NO and Ar = negligible See Page 4
EVAPORATION RATE SPECIFIC GRAVITY (AIR=1)
N/A (Gas) @ 70潞F (21.1潞C) = 1.41
Colorless gas with very slight acidic odor
APPEARANCE AND ODOR
FIRE AND EXPLOSION HAZARD DATA
AUTO IGNITION TEMPERATURE
FLASH POINT (Method used) FLAMMABLE LIMITS % BY VOLUME (See Page 4)
N/A LE N/A
N/A UEL N/A
ELECTRICAL CLASSIFICATION
EXTINGUISHING MEDIA
Nonhazardous
Nonflammable, inert gas
SPECIAL FIRE FIGHTING PROCEDURES
If cylinders are involved in a fire, safely relocate or keep cool with water spray.
UNUSUAL FIRE AND EXPLOSION HAZARDS
xx
REACTIVITY DATA
STABILITY CONDITIONS TO AVOID
Unstable None
Stable X
INCOMPATIBILITY (Materials to avoid)
None
HAZARDOUS DECOMPOSITION PRODUCTS
None
HAZARDOUS POLYMERIZATION CONDITIONS TO AVOID
May Occur
None
Will Not Occur X
SPILL OR LEAK PROCEDURES
STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED
Evacuate all personnel from affected area. Use appropriate protective equipment. If leak is in container or container
valve, contact your closest supplier location or call the emergency telephone number listed herein.
WASTE DISPOSAL METHOD
Do not attempt to dispose of waste or unused quantities. Return in the shipping contalner properly labeled, with any
valve outlet pluqs or caps secured and valve protection cap in place to your supplier. tor emergency disposal
assistance, contact your closest supplier location or call the emergency telephone number listed herein.
2
MISON庐 20
SPECIAL PROTECTION INFORMATION
Positive pressure air line with mask or self-contained breathing apparatus should be available for
RESPIRATORY PROTECTION
(Specify type)
emergency use.
VENTILATION LOCAL EXHAUST SPECIAL
N/A
See Page 4
See Local Exhaust MECHANICAL (Gen.) OTHER
N/A N/A
PROTECTIVE GLOVES
As required when welding. See Other Protective Equipment
EYE PROTECTION
Safety goggles or glasses. When welding, wear helmet or use face (Continued on Page 4)
OTHER PROTECTIVE EQUIPMENT
Safety shoes and appropriate head and eye protection when welding. (Continued on Page 5
SPECIAL PRECAUTIONS*
SPECIAL LABELING INFORMATION
DOT Shipping Name: Compressed gas, n.o.s. DOT Hazard Class: Division 2.2
DOT Shipping Label: Nonflammable Gas I.D. No.: UN 1956
SPECIAL HANDLING RECOMMENDATIONS
Use only in well-ventilated areas. Valve protection caps must remain in place unless container is secured with valve
outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand truck for cylinder movement. Use a
pressure reducing regulator when connecting cylinder to lower pressure (<3,000 psig) piping or systems. Do not heat
cylinder by any means to increase the discharge rate of product from the cylinder. Use a check valve or trap in the
discharge line to prevent hazardous back flow into the cylinder.
For additional handling recommendations, consult Compressed Gas Association鈥檚 Pamphlets P-1, P-14, and Safety
Bulletin SB-2.
SPECIAL STORAGE RECOMMENDATIONS
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area away from heavily trafficked areas and
emergency exits. Do not allow the temperature where cylinders are stored to exceed 125潞F (52潞C). Cylinders should
be stored upright and firmly secured to prevent falling or being knocked over. Full and empty cylinders should be
segregated. Use a 鈥渇irst in - first out鈥? inventory system to prevent full cylinders being stored for excessive periods of
time.
For additional storage recommendations, consult Compressed Gas Association鈥檚 Pamphlets P-1, P-14, and Safety
Bulletin SB-2.
SPECIAL PACKAGING RECOMMENDATIONS
This mixture can be handled with most common structural materials. Moist carbon dioxide is corrosive by its formation
of carbonic acid. For these applications, 316, 309 and 310 stainless steels may be used as well as Hastelloy庐 A, B and
C, and Monel庐. Ferrous nickel alloys are slightly corroded.
At normal temperatures this mixture is compatible with most plastics and elastomers.
OTHER RECOMMENDATIONS OR PRECAUTIONS
Compressed gas cylinders should not be refilled except by qualified producers of compressed gases. Shipment of a
compressed gas cylinder which has not be filled by the owner or with his (written) consent is a violation of Federal Law
(49CFR).
(Continued on Page 5)
*Various Government Agencies (i.e. Department of Transportation, Occupational Safety and Health Administration, Food and Drug Administration
3
and others) may have specific regulations concerning the transportation, handling, storage or use of this product which will not be reflected in this
data sheet. The customer should review these regulations to ensure that he is in full compliance.
MISON庐 20
CAS #:
NO = 10102-43-9
CO2 = 124-38-9
Ar = 7440-37-1
HEALTH HAZARD DATA
TIME WEIGHTED AVERAGE EXPOSURE LIMIT: (Continued)
DSHA 1993 PEL (8 Hr. TWA) for NO = 25 Molar PPM; C02 = 5,000 Molar PPM with no listing for argon. Oxygen levels
should be maintained at greater than 18 Molar percent at normal atmospheric pressure (pO2>135 torr).
PHYSICAL DATA
BOILING POINT:
CO2 Sublimation Pt. = -109.3潞F (-78.5潞C) NO = -241.2潞F (-151.9潞C)
Ar = -302.6潞F (-185.9潞C)
LIQUID DENSITY AT BOILING POINT:
CO2 Solid Density = 97.5 lb/ft3 (1562 kg/m3)
Ar = 87 lb/ft3 (1393 kg/m3)
NO = 81.2 lb/ft3 (1300 kg/m3)
VAPOR PRESSURE:
@ 70潞F (21.1潞C) - CO2 = 856 psia (5900 kPa)
NO and Ar = Above critical temperature
FREEZING POINT:
Ar = -308.9潞F (-189.4潞C)
CO2 = -69.8潞F(-56.6鈥) @ 75.1 psia (518 kPa)
NO = -262.5潞F (-163.6潞C)
SPECIAL PROTECTION INFORMATION
RESPIRATORY PROTECTION: (Continued)
When welding in confined space or where local exhaust or ventilation does not keep exposure below welding fume TLV,
use positive pressure air line with mask or selfcontained breathing apparatus.
LOCAL EXHAUST:
To prevent accumulation of high concentrations of gases so as to reduce the oxygen level in the air to less than 18 molar
percent. When welding, use enough ventilation, local exhaust at the arc, or both, to keep the welding fumes and gases
below the applicable TLVs in the worker鈥檚 breathing zone and the general area. Train the welder to keep his head out of
the fumes.
EYE PROTECTION: (Continued)
shield with filter lens. As a general rule, start with a shade which is too dark to see the weld zone. Then go to the next
lighter shade which gives sufficient view of the weld zone. Provide protection screens and flash goggles, if necessary, to
shield others from arc rays radiation which can injure eyes and burn skin.
4
MISON庐 20
SPECIAL PROTECTION INFORMATION
OTHER PROTECTIVE EQUIPMENT: (Continued)
When welding, wear head, hand and body protection which help to prevent injury from radiation, sparks and electrical
shock. See ANSI Z-49.1. At a minimum, this includes welder鈥檚 gloves and a protective face shield and may include arm
protectors, aprons, hats, shoulder protection, as well as dark substantial clothing. Train the welder not to touch live
electrical parts and to insulate hi~self from work and ground.
CAUTION: Welding or brazing may produce fumes and gases hazardous to health. Short-term (acute) overexposure to
welding fumes may result in discomfort such as: dizziness, nausea, or dryness or irritation of nose, throat, or eyes.
Long-term (chronic) overexposure may lead to siderosis (iron deposits in the lungs) and is believed by some investigators
to affect pulmonary function. Arc rays can injure eyes and burn skin. Electric shock can kill. Avoid breathing these fumes
and gases. Use adequate ventilation. See ANSI Z-49.1 鈥淪afety in Welding and Cutting鈥? published by the American
Welding Society.
Consult hazard warnings on boxes or containers (or on tags or labels thereon) containing brazing or welding filler metals,
fluxes and fusible granular materials. See OSHA safety regulations under 29CFR 1910.252 鈥淲elding, Cutting and
Brazing.鈥? Alse see ACGIH 鈥淭LVs (1994-19a5) for Chemical Substances and Physical Agents鈥?, Appendix B, Section BS
鈥淲elding Fumes鈥? (Total Particulate TLV-TWA, 5 mg/m3) for further information.
Consult manufacturer鈥檚 material safety data sheet on welding consumables and related products for reactivity and health
hazard data, and for further information regarding welding fumes.
SPECIAL PRECAUTIONS
OTHER RECOMMENDATIONS OR PRECAUTIONS: (Continued)
Always secure cylinders in an upright position before transporting them. transport cylinders in trunks of vehicles, enclosed
vans, truck cabs or in passenger compartments. Transport cylinders secured in open flatbed or in open pick-up type
vehicles.
Reporting under SARA, Title III, Section 313 is not required for this mixture.
NFPA 704 NO. for this mixture = 2 0 0 None
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