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
CLEVELAND, OH 44101-4737
www.us.lindegas.com No. 166
NO 10102-43-9
PRODUCT NAME CAS #
Mison庐; Cryogenic Ar: 7440-37-1
DOT I.D. No.:
UN 1951
TRADE NAME AND SYNONYMS
Argon, Refrigerated Liquid (D.O.T.)
DOT Hazard Class:
Division 2.2
CHEMICAL NAME AND SYNONYMS
Formula
<300 Molar PPM NO in Ar
Less Than 300 Molar PPM Nitric Oxide in Argon
ISSUE DATES AND REVISIONS Chemical Family:
Cryogenic Liquid Welding Mixture
January 1997
HEALTH HAZARD DATA
TIME WEIGHTED AVERAGE EXPOSURE LIMIT
NO= 25 Molar PPM; Argon is a simple asphyxiant. (ACGIH 1996). OSHA 1995 PEL (8Hr. TWA)
for NO = 25 Molar PPM with no listing for argon. (Continued on Page 4)
SYMPTOMS OF EXPOSURE
The quantity of nitric oxide in this mixture should not present a health hazard. Effects of exposure to high
concentrations so as to displace the oxygen in air necessary for life may include any, all, or none of the following:
Loss of balance or dizziness (Continued on Page 4)
TOXICOLOGICAL PROPERTIES
This mixture is nontoxic but the liberation of a large amount in a confined area could displace the amount of oxygen in
air necessary to support life.
Neither nitric oxide or argon are listed in the IARC, NTP or by OSHA as a carcinogen or potential carcinogen.
Persons in ill health where such illness would be aggravated by exposure to this mixture should not be allowed to work
with or handle this mixture.
(Continue on Page 4)
RECOMMENDED FIRST AID TREATMENT
PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF OVEREXPOSURE TO THIS MIXTURE.
RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED BREATHING APPARATUS.
Inhalation: Conscious persons should be assisted to an uncontaminated area and inhale fesh 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.
For dermal cortact of frostbite, flush affected areas with lukewarm water. DO NOT USE HOT WATER. A physician
should see the patient promptly if the cryogenic 鈥渂urn鈥檚 has resulted in blistering of the dermal surface or deep tissue
freezing.
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9; Cryogenic
HAZARDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES
None
PHYSICAL DATA
BOILING POINT LIQUID DENSITY AT BOILING POINT
Approximately 87 lb/ft] (1390 kg/m3)
Approximately -302潞F (-185潞C)
@ 70鈥 (21.1潞C) = Above the critical
VAPOR PRESSURE GAS DENSITY AT 700F. 1 atm
Approximately .103 lb/ft3 (1.65 kg/m3)
temperature of the mixture
SOLUBILITY IN WATER FREEZING POINT
Very slightly Approximately -309潞F (-190潞C)
EVAPORATION RATE SPECIFIC GRAVITY (AIR=1)
N/A (Gas) @ 70潞F (21.1潞C) = 1.37
Colorless cryogenic liquid and gas with 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 N/A N/A N/A
LE UEL
ELECTRICAL CLASSIFICATION
EXTINGUISHING MEDIA
Nonhazardous
Nonflammable, inert
SPECIAL FIRE FIGHTING PROCEDURES
None
UNUSUAL FIRE AND EXPLOSION HAZARDS
If liquid cylinders are involved in a fire, safely relocate or keep cool with water spray.
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
See Note on Page 4
WASTE DISPOSAL METHOD
See Note on Page 4
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Mison庐; Cryogenic
SPECIAL PROTECTION INFORMATION
Positive pressure air line with mask or self-contained breathing apparatus should be available for
RESPIRATORY PROTECTION
(Specify type)
emergency use. (Continued on Page 5)
VENTILATION LOCAL EXHAUST SPECIAL
N/A
See Page 5
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 5)
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: Argon, refrigated liquid DOT Hazard Class: Division 2.2
DOT Shipping Label: Nonflammable Gas I.D. No.: UN1951
SPECIAL HANDLING RECOMMENDATIONS
See Note on Page 4 re Spill or Leak Procedures. Also see Compressed Gas Association鈥檚 Safety Bulletin SB-2 and
Compressed Gas Association鈥檚 Pamphlets P-9, P-12, and P-14.
SPECIAL STORAGE RECOMMENDATIONS
See Note on Page 4 re Spill or Leak Procedures. Also see Compressed Gas Association鈥檚 Safety Bulletin SB-2 and
Compressed Gas Association鈥檚 Pamphlets P-9, P-12, and P-14.
SPECIAL PACKAGING RECOMMENDATIONS
Mison庐 (cryogenic) cannot be handled in carbon or low alloy steels. Eighteen-eight and 18-10 stainless steels are
acceptable as are copper and its alloys, nickel and its alloy brass, bronze, silicon alloys, Monel庐, Inconel庐, and
beryllium. Also see Compressed Gas Association鈥檚 Safety Bulletin SB-2 and Compressed Gas Association鈥檚
Pamphlets P-9, I P-12, and P-14.
OTHER RECOMMENDATIONS OR PRECAUTIONS
Liquified gas cylinders should not be refilled except by qualified producers of these products. Shipment of a
compressed gas container which has not been filled by the owner or with his (written) consent is a violation of Federal
Law (49CFR).
(Continued on Page 6)
*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; Cryogenic
NOTE RE SPILL OR LEAK PROCEDURES: (Continued)
Liquid Mison庐 cylinders should be used only in well-ventilated areas and in accordance with the manufacturer鈥檚 and
your supplier鈥檚 instructions. These cylinders must always be kept in an upright position. Specialized hand trucks are
needed for their movement. A 鈥渇irst in - first out鈥? inventory system should be used with these cylinders.
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 a positive air line with mask or self-contained 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 the eyes and burn skin.
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 himself 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 鈥榽Safety in Welding and Cutting鈥? published by the American
Welding Society.
(Continued on Page 6)
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Mison庐; Cryogenic
SPECIAL PROTECTION INFORMATION
OTHER PROTECTIVE EQUIPMENT: (Continued)
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? Also see ACGIH 鈥淭LVs (1996) for Chemical Substances in the Work Enviroments,鈥? Appendix B, Section B2
鈥淲elding Fumes鈥? (Total Particulate TLV-TWA, 5 mg/m ) 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. NEVER 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 not required.
NFPA 704 No. for Mison庐 (cryogenic) = 3 0 0 None
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