 |
|
|
|
|
| |
Butane |
Propane |
MAPP |
Acetylene |
| Flame Temperature in Oxygen (°F) |
4,925 |
4,579 |
5,301 |
5,589 |
| Flame Temperature in Air (°F) |
3,200 |
3,450 |
3,650 |
4,350 |
| Burning Velocity in Oxygen (Ft/Sec) |
11.0 |
12.2 |
15.4 |
22.7 |
| Total Heating Value (BTU/CuFt) |
3,374 |
2,498 |
2,406 |
1,470 |
| Primary Combustion Heating Value
(BTU/CuFt) |
315 |
255 |
517 |
507 |
| Secondary Combustion Heating
Value (BTU/CuFt) |
3,114 |
2,243 |
1,889 |
963 |
| Total Heating Value After Vaporization
(BTU/lb) |
21,500 |
21,800 |
21,000 |
21,500 |
| Volume to Weight Ratio (CuFt/lb) |
6.40 |
8.66 |
8.85 |
14.6 |
| Specific Gravity of Gas in Air |
2.076 |
1.52 |
1.48 |
0.906 |
| Specific Gravity of Gas in Liquid |
|
|
|
|
| Pounds Per Gallon |
4.70 |
4.24 |
4.80 |
N/A |
| Oxygen Required, Neutral Flame
(CuFt/Ft Fuel) |
N/A |
4.3 |
2.5 |
1.3 |
| Explosive Limits in Air (%) |
1.9 - 8.5 |
2.2 - 9.5 |
3.4 - 10.8 |
2.5 - 80.00 |
| Toxicity |
Low |
Low |
Low |
Low |
| Shock Sensitivity |
Stable |
Stable |
Stable |
Unstable |
| Tendency to Backfire |
Slight |
Slight |
Slight to Moderate |
Considerable |
| Reactions to Backfire |
Few Restrictions |
Few Restrictions |
Avoid unalloyed Silver,
Alloys containing more than 67% Copper & Magnesium |
Avoid alloys with more
than 67% Copper |
| Vapor Pressure @ 70°F |
30 |
125 |
120 |
250 |
