What is Gilsonite?
Also known as Natural Bitumen (Natural Asphalt) is a Heavy Hydrocarbon formed directly from crude oil reserves, it is produced when the volatile elements of crude oil are evaporated under immense pressure during many years and with specific physical and geographical conditions, therefore Gilsonite is in Solid shape with dark color and high carbon content and based on each mine geology Gilsonite could have different specifications.
Natural Gilsonite is non-hazardous and non-toxic. It is a pure resinous rock, formed of a complex combination of different kinds of hydrocarbons. It’s unique chemical and physical properties make Gilsonite a high-performance, multipurpose additive which is also a cost-effective solution too.
Gilsonite is used in many industries such as Asphalt industry, oil drilling, ink and paint, foundry, waterproofing, pipe coating, etc.
Table of analysis:
Table 1: Ash Content Up To 10%
| NO. | Test | Result | Test method |
| 1 | Specific Gravity @ 25/25°C | 1.25 | ASTM D70 |
| 2 | Ash Content, wt% | Up to 10 | ASTM D3174 |
| 3 | Softening Point, °C | 180-190 | ASTM E28 |
| 4 | Moisture Content, wt% | 2.84 | ASTM D3173 |
| 5 | Volatile Matter, wt% | 60.17 | ASTM D3175 |
| 6 | Fixed Carbon, wt% | 28.03 | ASTM D3172 |
| 7 | Carbon Content, mass% | 69.7 | ASTM D5291 |
| 8 | Hydrogen Content, mass% | 8.856 | ASTM D5291 |
| 9 | Nitrogen Content, mass% | 0.837 | ASTM D5291 |
| 10 | Sulfur Content, mass% | 8.681 | UOP 864 |
| 11 | Solubility in CS2 | 91.45 | ASTM D4 |
| 12 | Solubility in CCl4 | 78.9 | ASTM D2042 |
| 13 | Solubility in TCE | 87.47 | ASTM D2042 |
Table 2: Ash Content 11-13%
| NO. | Test | Result | Test method |
| 1 | Specific Gravity @ 25/25°C | 1.18 | ASTM D70 |
| 2 | Ash Content, wt% | 11-13 | ASTM D3174 |
| 3 | Softening Point, °C | 180-190 | ASTM E28 |
| 4 | Moisture Content, wt% | 1.0 | ASTM D3173 |
| 5 | Volatile Matter, wt% | 61.2 | ASTM D3175 |
| 6 | Fixed Carbon, wt% | 26.4 | ASTM D3172 |
| 7 | Carbon Content, mass% | 67.63 | ASTM D5291 |
| 8 | Hydrogen Content, mass% | 8.665 | ASTM D5291 |
| 9 | Nitrogen Content, mass% | 0.8 | ASTM D5291 |
| 10 | Sulfur Content, mass% | 8.375 | UOP864 |
| 11 | Solubility in CS2 | 72.1 | ASTM D4 |
| 12 | Solubility in CCl4 | 65.5 | ASTM D2042 |
| 13 | Solubility in TCE | 82.1 | ASTM D2042 |
Table 3: Ash Content 16-18%
| NO. | Test | Result | Test method |
| 1 | Specific gravity 25/25°C | 1.25 | ASTM D70 |
| 2 | Ash content, wt% | 16-18 | ASTM D3174 |
| 3 | Softening point, °C | 180-190 | ASTM E28 |
| 4 | Moisture content, wt% | 1.50 | ASTM D3173 |
| 5 | Volatile matter, wt% | 58.10 | ASTM D3175 |
| 6 | Fixed carbon, wt% | 23.24 | ASTM D3172 |
| 7 | Carbon content, mass% | 65.13 | ASTM D5291 |
| 8 | Hydrogen content, mass% | 8.036 | ASTM D5291 |
| 9 | Nitrogen content, mass% | 0.847 | ASTM D5291 |
| 10 | Sulfur content, mass% | 8.395 | UOP864 |
| 11 | Solubility in CS2 | 67.9 | ASTM D4 |
| 12 | Solubility in CCl4 | 64.2 | ASTM D2042 |
| 13 | Solubility in TCE | 74.3 | ASTM D2042 |