MATERIAL
Linde GAS,LLC (216) 642-6600
Linde Gas LLC (216) 642-6600
AGA Gas INC. SAFETY
P.O. Box 94737 WOODS BLVD
P.O. Box 94737
6055 ROCKSIDE DATA SHEET
Cleveland,94737 44101
Cleveland, Ohio 44101
P.O. BOX Ohio
www.us.lindegas.com
www.us.lindegas.com
CLEVELAND, OH 44101-4737 No. 145
Nitrogen = 7727-37-9
PRODUCT NAME CAS #
Sulfur Hexafluoride = 2551-62-4
5% Sulfur Hexafluoride in Nitrogen
DOT I.D. No.:
UN 1956
TRADE NAME AND SYNONYMS
Compressed gas, n.o.s. (D.O.T.)
DOT Hazard Class:
Division 2.2
CHEMICAL NAME AND SYNONYMS
5 Molar % Sulfur Hexafluoride in Nitrogen 5 Molar % SF6 in N2
Formula
ISSUE DATES AND REVISIONS Chemical Family:
Gas Mixture
Revised January 1995
HEALTH HAZARD DATA
TIME WEIGHTED AVERAGE EXPOSURE LIMIT
SF6 = 1,000 Molar PPM; nitrogen is a simple asphyxiant (ACGIH 1994-1995). OSHA 1993 PEI (8 Hr. TWA) for SF6 = 1,000 Molar
PPM with no listing for nitrogen (Continued on Page 4)
SYMPTOMS OF EXPOSURE
Effects of exposure to high concentrations so as to displace the oxygen in the air necessary for life are headache,
dizziness, labored breathing and eventual unconsciousness.
TOXICOLOGICAL PROPERTIES
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 sulfur hexafluoride or nitrogen 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 product.
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 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.
5% Sulfur Hexafluoride in Nitrogen
HAZARDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES
None
PHYSICAL DATA
BOILING POINT LIQUID DENSITY AT BOILING POINT
See Page 4
SF6 Sublimation Point = -82.8潞F (-63.8潞C) N2 = -320.5潞F (-195.8潞C)
VAPOR PRESSURE GAS DENSITY AT 70掳F. 1 atm
See page 4 See Page 4
SOLUBILITY IN WATER FREEZING POINT
Slightly See Page 4
EVAPORATION RATE SPECIFIC GRAVITY (AIR=1)
N/A (Gas) @ 70潞F (21.1潞C) SF6 = 5.13 N2 =0.97
Colorless, odorless gas
APPEARANCE AND ODOR
FIRE AND EXPLOSION HAZARD DATA
AUTO IGNITION TEMPERATURE
FLASH POINT (Method used) FLAMMABLE LIMITS % B VOLUME (See Page 4)
Y
N/A N/A N/A N/A
LEL UEL
ELECTRICAL CLASSIFICATION
EXTINGUISHING MEDIA
Nonhazardous
Nonflammable gas mixture
SPECIAL FIRE FIGHTING PROCEDURES
If cylinders are involved in a fire, safely relocate or keep cool with water spray
UNUSUAL FIRE AND EXPLOSION HAZARDS
None
REACTIVITY DATA
STABILITY CONDITIONS TO AVOID
Unstable None
Stable X
INCOMPATIBILITY (Materials toavoid)
See Hazardous Decomposition Products
HAZARDOUS DECOMPOSITION PRODUCTS See Page 4
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 a ffected 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 container properly labeled, with any
valve outlet plugs or caps secured and valve protection cap in place to your supplier for proper disposal. For
emergency disposal, contact your closest supplier location or call the emergency telephone number listed herein.
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5% Sulfur Hexafluoride in Nitrogen
SPECIAL PROTECTION INFORMATION
Positive pressure air line with mask or self-containedbreathing apparatus should be available for
RESPIRATORY PROTECTION
(Specify type)
emergency use.
VENTILATION LOCAL EXHAUST SPECIAL
N/A
To prevent accumulation above the TWA for SF6
See local exhaust MECHANICAL (Gen.) OTHER
N/A
N/A
PROTECTIVE GLOVES
Any Material
EYE PROTECTION
Safety goggles or glasses
OTHER PROTECTIVE EQUIPMENT
Safety shoes
SPECIAL PRECAUTIONS*
SPECIAL LABELING INFORMATION
DOT Shipping Name: Compressed acts, 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 gas mixture should be able to be handled in any common structural material. See hazardous decomposition
products for handling this mixture at elevated temperatures.
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 been filled by the owner or with his (written) consent is a violation of Federal
Law (49CFR).
(Continued on Page 4)
*Various Government Agencies (i.e. Department of Transportation, Occupational Safety and Health Administration, Food and Drug Administration
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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.
5% Sulfur Hexafluoride in Nitrogen
HEALTH HAZARD DATA
TIME WEIGHTED AVERAGE EXPOSURE LIMIT: (Continued)
Oxygen levels should be maintained at greater than 18 molar % at normal atmospheric
pressure (pO2>135 torr). -
PHYSICAL DATA
LIQUID DENSITY AT BOILING POINT
SF6 @ 59潞F (15潞C) = 89.83 lb/ft3 (1439 kg/m3)
N2 @ Boiling Point = 50.46 lb/ft3 (808.3 kg/m3 )
VAPOR PRESSURE:
SF6 @ 70潞F (21.1潞C) = 319.1 psia(2200 kPa)
N2 @ 70潞F (21.1潞C) = Above the critical temperature of -232.6潞F (-147潞C)
GAS DENSITY AT 70潞F, 1 atm:
SF6 = .384 lb/ft3 (6.15 kg/m3) N2 = .0725 lb/ft3 (1.161 kg/m3 )
FREEZING POINT:
SF6 = -59.4潞F (-50.8潞C) N2 = -345.9潞F (-209.9潞C)
REACTIVITY DATA
HAZARDOUS DECOMPOSITION PRODUCTS:
Sulfur hexafluoride is stable at room temperatures when in contact with any common structural materials. Above 400潞F
(200潞C) it remains stable if handled in aluminum, stainless steel, copper, brasses, and silver. It decomposes slowly in the
presence of carbon steel above 400潞F (200潞C) to SF2, S2F2, SF4, and S2F10 (sulfur pentafluoride).
Sulfur hexafluoride is thermally stable to approximately 1475潞F (800潞C).
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 this mixture = 1 0 0
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