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| ProductName: | Argon, compressed |
| ChemicalName: | Argon |
| Formula: | Ar | 0 |
| ChemicalFamily: | Inert gas | 0 | 0 |
| Use: | Various, inerting, medical, instrumentation | SA |
| Synonyms: | Argon |
| ¨ ¨ |
| NFPA Fire: | 0 | HMIS Fire: | 0 | Acute: | No |
| NFPA Health: | 0 | HMIS Health: | 0 | Chronic: | No |
| NFPA Reactivity: | 0 | HMIS Reactivity: | 0 | Fire: | No |
| NFPA Special Hazard: | SA | Mixture: | No | Reactive: | No |
| Sudden Release Pressure: | Yes |
| 02. INGREDIENTS - COMPOSITION & INFORMATION |
| PERCENT | EXPOSURE GUIDELINES |
| COMPONENT | CAS No. | (BY WT.) | OSHA - TWA | ACGIH - STEL |
| Argon | 7440-37-1 | 99.0% | 100.0% | None. | Simple Asphyxiant |
| LD50: None. LC50: None. |
| 03. HAZARDS IDENTIFICATION |
| EMERGENCY OVERVIEW: |
| Warning: | High pressure gas. |
| Can cause rapid suffocation. |
| Do not breathe gas. |
| Self contained breathing apparatus may be required by rescue workers. |
| Potential Health Effects Information: |
| Routes of Exposure: |
| Inhalation: | Simple asphyxiant. Argon is nontoxic, but may cause suffocation by displacing the |
| oxygen in air. Exposure to oxygen-deficient atmosphere (<19.5%) may cause |
| dizziness, drowsiness, nausea, vomiting, excess salivation, diminished mental |
| alertness, loss of consciousness and death. Exposure to atmospheres containing |
| 8-10% or less oxygen will bring about unconsciousness without warning and so |
| quickly that the individuals cannot help or protect themselves. Lack of sufficient |
| oxygen may cause serious injury or death. |
| Eye: | None. |
| Skin: | None. |
| Chronic Effects: | None established. |
| Medical Conditions Aggravated By | None. |
| Overexposure: |
| Other Effects Of Overexposure: | None. |
| Carcinogenicity: | Argon is not listed by NTP, OSHA, or IARC |
| 04. FIRST AID MEASURES |
| Inhalation: | Persons suffering from lack of oxygen should be removed to fresh air. If victim is |
| not breathing, administer artificial respiration. If breathing is difficult, administer |
| oxygen. Obtain prompt medical attention. |
| Skin: | None. |
| Eye: | None. |
| Ingestion: | None. |
| Notes To Physician: | None. |
| 05. FIRE FIGHTING MEASURES |
| Flash Point: | Not applicable; Gas. |
| Autoignition: | Nonflammable. |
| Flammable Limits - Lower: | Not applicable. |
| Flammable Limits - Upper: | Not applicable. |
| Extinguishing Media: | Argon is nonflammable and does not support combustion. Use extinguishing media |
| appropriate for the surrounding fire. |
| Fire Fighting Instructions: | Argon is a simple asphyxiant. If possible, remove argon cylinders from fire area or |
| cool with water. Do not direct water spray at the container vent. Self-contained |
| breathing apparatus may be required for rescue workers. Evacuate this area. |
| Fire And Explosion Hazards: | Upon exposure to intense heat or flame cylinder may vent rapidly and/or rupture |
| violently. Most cylinders are designed to vent contents when exposed to elevated |
| temperatures. Pressure in a container can build up due to heat and it may rupture if |
| pressure relief devices should fail to function. |
| Hazardous Combustion Products: | None known. |
| Sensitivity To Static Discharge: | None. |
| Sensitivity To Mechanical Impact: | None. |
| 06. ACCIDENTAL RELEASE MEASURES |
| Evacuate: | Evacuate all personnel from the affected area. Shut off source of argon if possible |
| without risk. Ventilate area or remove leaking containers to a well ventilated |
| location. If leaking from cylinder or its valve, contact your supplier. |
| 07. HANDLING AND STORAGE |
| Storage: | Store and use with adequate ventilation. Cylinders should be stored upright with |
| valve protection cap in place and firmly secured to prevent falling or being knocked |
| over. Protect cylinders from physical damage; do not drag, roll, slide or drop. Do |
| not allow storage area temperature to exceed 125°F (52°C). Full and empty |
| cylinders should be segregated. Use a first-in, first-out inventory system to prevent |
| full containers from being stored for long periods of time |
| Handling: | Use a suitable hand truck for cylinder movement. Never attempt to lift a cylinder |
| by its valve protection cap. Keep cylinders and their valves free from oil and |
| grease. Open valve slowly. If user experiences difficulty operating cylinder valve, |
| discontinue use and contact supplier. Never insert an object (e.g., wrench, |
| screwdriver, pry bar, etc.) into valve cap openings. Doing so may damage valve, |
| causing a leak to occur. Never strike an arc on a compressed gas cylinder or make |
| a cylinder a part of an electrical circuit. Use an adjustable strap wrench to remove |
| over-tight or rusted caps. For additional precautions in using argon see Section 16 - |
| Other Information. |
| 08. EXPOSURE CONTROLS - PERSONAL PROTECTION |
| Engineering Controls: |
| Ventilation: | Natural or mechanical to prevent oxygen-deficient atmospheres under 19.5% |
| oxygen. |
| Personal Protective Equipment (PPE): |
| Skin Protection: |
| Glasses: | Safety glasses are recommended when handling cylinders. |
| Shoes: | Safety shoes are recommended when handling cylinders. |
| Gloves: | Work gloves are recommended when handling cylinders. |
| Respirator: | None required in general use. |
| Emergency Use: | Self-contained breathing apparatus (SCBA) or positive pressure airline with mask |
| are to be used in oxygen-deficient atmosphere. Respirators will not function. |
| 09. PHYSICAL AND CHEMICAL PROPERTIES |
| Physical State: | Gas |
| Color: | Colorless |
| Odor: | Odorless |
| Molecular Weight: | 39.95 |
| Boiling Point: | -302.6°F (-185.9°C) @ 1 atm |
| Specific Gravity: | 1.38 At 70°F (21.1°C) @ 1 atm, Air = 1 |
| Freezing/Melting Point: | -308.6°F (-189.2°C), @ 1 atm |
| Vapor Pressure: | Not Applicable |
| Vapor Density: | .103 lb./cu ft (1.650 kg/CuM), At 70°F (21.1°C) @ 1 atm |
| Water Solubility: | .056 Vol./Vol. At 32° F (0°C) |
| Expansion Ratio: | Not Applicable - Gas |
| pH: | Not Applicable - Gas |
| Odor Threshold: | Not Applicable - Gas |
| Evaporation Rate: | Not Applicable - Gas |
| Coefficient Of Water/Oil Distribution: | Information not available |
| 10. STABILITY AND REACTIVITY |
| Chemical Stability: | Stable |
| Conditions To Avoid: | None. |
| Incompatibility With Other Materials: | None |
| Hazardous Decomposition Products: | None |
| Hazardous Polymerization: | Will not occur |
| 11. TOXICOLOGICAL INFORMATION |
| Irritancy Of Material: | None. |
| Reproductive Effects: | None. |
| Teratogenicity: | None. |
| Synergistic Materials: | None. |
| Sensitization To Material: | None. |
| Mutagenicity: | None. |
| 12. ECOLOGICAL INFORMATION |
| ECOTOXICITY: | No adverse ecological effects are expected. Argon does not contain any Class I or |
| Class II Ozone depleting chemicals (40 CFR Part 82). Argon is not listed as a |
| marine pollutant by DOT (49 CFR Part 171). |
| 13. DISPOSAL CONSIDERATIONS |
| Waste Disposal Method: | Do not attempt to dispose of residual or unused quantities. Return cylinder to |
| supplier. |
| Waste Disposal Method: | For emergency disposal, discharge slowly to the atmosphere in a well ventilated |
| area or outdoors. |
| 14. TRANSPORT INFORMATION |
| DOT/IMO Shipping Name: | Argon, compressed. |
| Hazard Class: | 2.2 (NonFlammable gas.) |
| Identification Number: | UN 1066 |
| PIN: | 1066 |
| Product RQ: | None. |
| Shipping Label: | Nonflammable Gas |
| Placard (When Required): | Nonflammable Gas. |
| Special Shipping Information: | Cylinders should be transported in a secure position, in a well ventilated vehicle. |
| The transportation of compressed gas cylinders in automobiles or in closed-body |
| vehicles can present serious hazards and should be discouraged. |
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