MATERIAL SAFETY DATA SHEET

Manufacturer: NORTHCUTT, INC CHEMTREC
Address: 5055 N. Broadway Toll Free 24-Hour Emergency Telephone Numbers
  Wichita, KS 67219 North America: 1 800 424-9300
  USA International: 0 730 527-3887
Phone: 316-838-1477   Call Collect
       
Phone: 316-838-6203    
IDENTIFICATION
Product Name: HC-12a Dangerous Goods Class: 2
  HC-22a Division: 1
  HC-502a WHMIS Classification: Class A
Uses: Refrigerant   Class B, Division 1
PHYSICAL PROPERTIES
HC-12a  
Physical State: Gas Vapor Pressure & Boiling Point Info
Specific Gravity: 0.535
(psig @ 70F):
70
Evaporation Rate: Fast >1 (1=n-butyl acetate) (kPa @ 21C):
483
Freezing Point: (F) est.: -345 Vapor Density:
1.74
  (C) est.: -209 Boiling Point (F):
-28
pH: n.ap. (C): -33
Odor & Appearance: Colorless gas, sweet petroleum odor stenched to allow leak detection
Odor Threshold: 4900 ppm Coefficient of Water/Oil Distribution: <1
 
HC-22a  
Physical State: Gas Vapor Pressure & Boiling Point Info
Specific Gravity: 0.512
(psig @ 70F):
110
Evaporation Rate: Fast >1 (1=n-butyl acetate) (kPa @ 21C):
758
Freezing Point: (F) est.: -306 Vapor Density:
1.52
  (C) est.: -188 Boiling Point (F):
-44
pH: n.ap. (C): -42
Odor & Appearance: Colorless gas, sweet petroleum odor stenched to allow leak detection
Odor Threshold: 4800 ppm Coefficient of Water/Oil Distribution: <1
 
HC-502a  
Physical State: Gas Vapor Pressure & Boiling Point Info
Specific Gravity: 0.504
(psig @ 70F):
137
Evaporation Rate: Fast >1 (1=n-butyl acetate) (kPa @ 21C):
945
Freezing Point: (F) est.: -306 Vapor Density:
1.50
  (C) est.: -188 Boiling Point (F):
-56
pH: n.ap. (C): -49
Odor & Appearance: Colorless gas, sweet petroleum odor stenched to allow leak detection
Odor Threshold: 4800 ppm Coefficient of Water/Oil Distribution: <1
INGREDIENTS
ACGIH (2002)
Components HC-12a % CAS LD50 LC50 TWA
    v/v     Inhalation rate (8 hours)
trimethylmethane   30/60 75-28-5 n. ap. 52 mg/kg 1hr Simple Asphyxiate
propylhydride   40-70 74-98-6 n. ap. n. ap. 2500 ppm
Non Hazardous Ingredients   =<2 n. ap. n. ap. n. ap. n. ap.
Components HC-22a          
propylhydride   =>98 74-98-6 n. ap. n. ap. 2500 ppm
Non Hazardous Ingredients   =<2 n. ap. n. ap. n. ap. n. ap.
Components HC-502a          
dimethyl   3-7 74-84-0 n. ap. n. ap. Simple Asphyxiate
propylhydride   60-100 74-98-6 n. ap. n. ap. 2500 ppm
Non Hazardous Ingredients   =<2 n. ap. n. ap. n. ap. n. ap.
FIRST AID MEASURES
Eyes: Check for contact lenses & remove if present. Flush eyes with copious amount of water for at least 15 minutes. Call for medical attention if irritation persists.
Inhalation: In emergency situations use proper respiratory protection & immediately remove the victim from exposure. Administer artificial respiration if breathing has stopped. Keep at rest & call for medical attention.
Skin: Flush with copious amounts of water. Use soap if available. Remove contaminated clothing (including shoes) & launder before re-use. In case of frostbite from contact with liquid, immediately place affected area in lukewarm water & keep at this temperature until circulation returns. If inflammation or irritation develops, seek medical attention.
Ingestion: Not likely to occur.
PREVENTATIVE MEASURES
Personal Protection: Select PPE depending on conditions.
In open systems where contact is likely, wear gas-proof goggles, face shield, chemical resistant overalls & appropriate thermal/chemical gloves.
Where skin & eye contact is unlikely, wear long sleeves, chemical resistant gloves & gas-proof goggles.
Where concentrations in air may exceed the occupational exposure limits & where engineering, work practices or other means of exposure reduction are not adequate, approved respirators may be necessary to prevent overexposure by inhalation. Respiratory protection must be NIOSH/MSHA approved & conform to OSHA rules specified in 29 CFR 1910-134.
Engineering Controls: Use only in well-ventilated situations or employ extraction ventilation to maintain atmospheric concentrations well below exposure standards. All mechanical equipment used in ventilation systems must be spark proof.
Spill/Disposal Procedure: Eliminate all sources of ignition. Prevent additional discharge of material if possible to do so without hazard. Warn occupants in downwind areas. Disperse vapors with hose streams using fog nozzles. Ensure disposal complies with government requirements & ensure conformity to local disposal regulations. Notify the appropriate authorities immediately.
Handling, Storage & Shipping: Store in a cool, well-ventilated place away from incompatible materials. Do not allow cylinder temperature to exceed 130F (54C). Cylinders that are not in use must have the valves in the closed position & be equipped with a protective cap. Transport & store cylinders secured in an upright position in a ventilated space. Use proper grounding procedures.
FIRE OR EXPLOSION HAZARD
HC-12a LFL UFL
Flammability Limits in air (% by volume): 1.95% 9.1%
Auto ignition Temperature: 1636 F/ 891C  
Flashpoint: n. av.  
HC-22a    
Flammability Limits in air (% by volume): 2.0% 10.0%
Auto ignition Temperature: 896F/480C  
Flashpoint: n. av.  
HC-502a    
Flammability Limits in air (% by volume): 2.2% 10.2%
Auto ignition Temperature: 88.2F/472C  
Flashpoint: n. av.  
Hazardous Combustion Products: Carbon dioxide, acrid fumes
Sensitivity to Mechanical Impact: Mixture not sensitive, protect cylinders from damage.
Sensitivity to Static Discharge: Vapors may ignite if exposed to static discharge.
Fire & Explosion Hazard: Flammable air vapor mixtures may form if allowed to leak to atmosphere. Accumulation of gas is an ignition hazard. Vapors are heavier than air & may travel to an ignition source. Flashback along vapor trail may occur.
Fire Extinguishing Precautions: Use water spray or fog to cool exposed cylinders. Do not extinguish flames unless leak can be stopped. Fire can be extinguished with carbon dioxide and/or dry chemical.
NFPA HAZARD CLASSIFICATION:  
Health: 1 = Materials that, on exposure, would cause irritation, but only minor residual injury even if no treatment is given.
Flammability: 4 = Materials which will rapidly or completely vaporize at atmospheric pressure & normal ambient temperature, or which are readily dispersed in air & which will burn readily. The preferred method of fire attack is to stop the flow of material or to protect exposures while allowing the fire to burn itself out.
Reactivity: 0 = This degree includes materials that are normally stable, even under fire exposure conditions, & that do not react with water. Normal fire fighting procedures may be used.
REACTIVITY DATA
This material is stable. Hazardous Polymerization will not occur.
Incompatibility: Nickel carbonyl with oxygen, chlorine, and strong oxidizers.
Conditions to avoid: Avoid excessive heat and/or static discharge. Gas explodes spontaneously when mixed with chlorine dioxide.
Hazardous Decomposition: Thermal decomposition & burning may produce carbon dioxide & or acrid fume.
PREPARATION
Northcutt, Inc. 316/838-1477 January 28, 2004
All information given by Northcutt, Inc. is offered in good faith & is believed to be accurate. The information contained in this MSDS is based on supplier and/or other information available at the date of preparation. Northcutt, Inc. does not guarantee the accuracy of this information and it is offered without warranty, guarantee or liability on the part of the preparer.

n. av. Not available
n. ap. Not applicable
Est. Estimate
v/v Volume/volume basis
< Less than
> Greater than

info@hcrefrigerant.com
Office phone number: 1-800-279-3540
Fax number: 1-316-838-6203