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The Physical & Chemical properties of Pentane mixture produced at GAIL, Vijaipur are given below.
Physical Characteristics
 |
 |
 |
 |
Sr.No. |
 |
Property |
 |
Range |
 |
1 |
 |
Specific Gravity (at 150C) |
 |
0.6300 to 0.6500 |
 |
2 |
 |
Reid Vapour Pressure (at 37.8 0C) |
 |
0.95 to 1.00 kg/cm2 |
 |
3 |
 |
Initial Boiling Point |
 |
320C to 35 0C |
 |
4 |
 |
Final Boiling Point |
 |
630C to 65 0C |
 |
5 |
 |
Residue on Evaporation |
 |
less than 1 ppm |
 |
6 |
 |
Copper Strip Corrosion
(at 50 0C for 3hrs) |
 |
1a
(as per IS-1448 P-15) |
 |
7 |
 |
Hydrogen Sulfide (H2S) |
 |
Nil |
 |
8 |
 |
Colour (Saybolt Color Index) |
 |
26 + |
|
 |
 |
 |
 |
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Typical Chemical Composition
 |
 |
 |
 |
Component |
 |
Formula |
 |
Mole% (Range ) |
 |
Butanes |
 |
(C4) |
 |
0.01 to 0.05 |
 |
Iso-Pentane |
 |
(i-C5) |
 |
48 to 52 |
 |
Normal-Pentane |
 |
(n-C5) |
 |
48 to 52 |
 |
Cyclo-Pentane |
 |
(c-C5) |
 |
0.05 to 0.10 |
 |
Iso-Hexane |
 |
(i-C6) |
 |
0.01 to 0.05 |
 |
Normal-Hexane |
 |
(n-C6) |
 |
0.05 to 0.10 |
 |
Cyclo-Hexane |
 |
(c-C6) |
 |
0.05 to 0.10 |
 |
Aromatic-Hexane |
 |
(Ar-C6) |
 |
0.01 to 0.05 |
 |
Heptanes |
 |
(C7+) |
 |
0.01 to 0.05 |
|
 |
 |
 |
 |
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Detailed specifications
 |
 |
 |
 |
S.No |
 |
PARAMETERS |
 |
UNIT |
 |
SPECIFICATION |
 |
RESULTS |
 |
1 |
 |
Appearance |
 |
- |
 |
CLEAR COLORLESS LIQUID |
 |
CLEAR COLORLESS LIQUID |
 |
2 |
 |
Density @15 0C |
 |
gm/cc |
 |
0.6500 Max. |
 |
0.6440 |
 |
3 |
 |
Distillation Range |
 |
|
 |
|
 |
|
 |
a |
 |
Initial Boiling Point |
 |
0C |
 |
35 Max. |
 |
34 |
 |
b |
 |
Final Boiling Point |
 |
0C |
 |
65 Max. |
 |
45 |
 |
4 |
 |
RVP @37.8 0C |
 |
kg./cm2 |
 |
0.95 Max. |
 |
0.85 |
 |
5 |
 |
Flash Point |
 |
0C |
 |
<23 |
 |
<23 |
 |
6 |
 |
Moisture |
 |
ppm |
 |
500 |
 |
60 |
 |
7 |
 |
Doctor Test |
 |
- |
 |
Negative |
 |
Negative |
 |
8 |
 |
Hydrogen Sulphide |
 |
ppm |
 |
Nil |
 |
Nil |
 |
9 |
 |
Residue on Evaporation |
 |
mg/100ml |
 |
5 Max |
 |
1 |
 |
10 |
 |
Copper strip corrosion (for 3 Hrs.at 500C) |
 |
|
 |
Not worse than No.1 ASTM |
 |
1a |
 |
11 |
 |
Cal. Value |
 |
KCal./kg |
 |
- |
 |
11530 |
 |
12 |
 |
Metal Content |
 |
- |
 |
- |
 |
- |
 |
a |
 |
Vanadium |
 |
ppm |
 |
- |
 |
Nil |
 |
b |
 |
Potassium |
 |
ppm |
 |
- |
 |
ppm |
 |
c |
 |
Calcium |
 |
ppm |
 |
- |
 |
Nil |
 |
d |
 |
Lead |
 |
ppm |
 |
- |
 |
Nil |
 |
e |
 |
Sodium |
 |
ppm |
 |
- |
 |
Nil |
|
 |
 |
 |
 |
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