Sorry sir, I'm not sure exactly what I said to make you so angry - you sure did tear me apart but you didn't provide any useful or contradictory information about the topic at hand beyond saying 'I'm an idiot'
AND I have to point out that you are wrong...MAPP is a registered trademark of the BOC group, inc. I'm sure there's similar generic mixtures but the product MAPP (notice the little R in a circle always next to it) is not generic
I also have to disagree about the properties - I'm no chemist but I figured based on common sense that MAPP's properties would be somewhere between Methane and Propane - you are right that "methyl acetate =! methane =! methyl acetylene / propadiene =! propane" but please see below - I still don't think I was far off in my uneducated assumptions
Propane
-------------------
Molecular Weight: 44.097
Boiling Point: -43.67°F ( -42.04°C) @ 1 atm
Specific Gravity: 1.5223 At 70°F (21.1°C) @ 1 atm, Air = 1
Freezing/Melting Point: -305.84F (-187.69C) at 1 atm
Vapor Pressure: 109.73 psig, (756.56 kPa) at 70°F (21.2°)
Vapor Density: 0.110 lb./cu ft (1.1.77kg/CuM), At 70°F (21.1°C) @ 1 atm
Expansion Ratio: 1 to 290 at 70°F (21.1°C)
Methane
-------------------------------
Physical state (gas, liquid, solid) : Gas
Vapor pressure : Not Available
Vapor density (Air = 1) : Not Available
Evaporation point : Not Available
Boiling point : -161.5 oC
Freezing point : -182.5 oC
pH : Not Applicable
Specific gravity : 0.55
MAPP
------------------------------
Physical state (gas, liquid, solid) : Gas
Vapor pressure at 70oF : 97 psia
Vapor density (Air = 1) : Not Available
Evaporation point : Not Available
Boiling point : -48 to -23 oC
Freezing point : -120 oC
pH : Not Available
Specific gravity : 0.571 (Liquid)
So if you have some information that is relevant for this discussion and helps answer the original question please by all means post it - I did just see it mentioned somewhere that MAPP may be incompatible with copper and silver so that might rule it out in a standard system.
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