How do you convert density to API?
How do you convert density to API?
The formula can be reversed to find the density of the petroleum liquid. Add 131.5 to the API gravity. The formula for API gravity is API = (141.5/SG) -131.5 where SG is the specific gravity of the petroleum liquid being measured. For example, for an API gravity of 50, add 131.5 to obtain 181.5.
What is API in fuel?
The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks. It is used to compare densities of petroleum liquids.
How do you find API gravity?
API gravity is gradated in degrees on a hydrometer instrument and was designed so that most values would fall between 10° and 70° API gravity. The arbitrary formula used to obtain this effect is: API gravity = (141.5/SG at 60 degF) – 131.5, where SG is the specific gravity of the fluid.
What is the relationship between density specific gravity and API?
API gravity is another expression of this measurement that uses the Density/Specific gravity for its conversion. The higher the api the less dense the sample is. For example at 60°F: an api of 10.0 is equal to 1.0000 g/cm3. While an api of 80.0 is equal to 0.6684 g/cm3.
What is the API gravity of butane?
0.601
Specific gravity of common liquids and fluids like alcohol, oils, benzene, water and many more
| Fluid | Temperature (oC) | Specific Gravity SG |
|---|---|---|
| Bromine | 25 | 3.12 |
| Butane, liquid | 25 | 0.601 |
| Caproic acid | 25 | 0.924 |
| Carbolic acid | 15 | 0.959 |
What is API scale?
the American Petroleum Institute gravity scale: a universally accepted scale of the relative density of fluids that is used in fuel technology and is measured in degrees API. One degree API is equal to (141.5/d)–131.5, where d = relative density at 288.7 K. See also Baumé scale.
What does API oil stand for?
American Petroleum Institute
The American Petroleum Institute, API, is a U.S.A trade association for the oil and natural gas industry.
How is oil API calculated?
The official formula used to derive the gravity of petroleum liquids from the specific gravity (SG), as follows:
- API gravity = 141.5/SG – 131.5.
- RD at 60oF = 141.5 / (API gravity + 131.5)
- Barrels of crude oil per metric ton = 1 / [141.5 / (API gravity + 131.5) x 0.159]
Why is API gravity important?
The API Gravity of a product is very important in determining the characteristics of the petroleum product. To learn more about this property, let’s apply the AmSpecapproach. API Gravity, or The American Petroleum Institute gravity, is a measure of how light or heavy a petroleum liquid is compared to water.
How do you convert specific gravity to API gravity?
Using the specific gravity of the substance, calculate its API gravity using the following formula: (141.5/specific gravity) – 131.5. For the exemplar substance, its API gravity would be (141.5/0.5) – 131.5 = 151.5.
