Density of Platinum
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| Platinum Density |
What is the density of platinum?
The density of platinum is 21.45 `\frac{g}{cm^{3}}` or 21450 `\frac{kg}{m^{3}}`. Density of platinum varies in the range from 21.4 `\frac{g}{cm^{3}}` to 21.5 `\frac{g}{cm^{3}}`
Platinum Density Formula
What is the platinum density formula?
Density of platinum = `=\frac{Mass}{Volume}`
The mass of platinum is measured in grams, kilograms or pounds.
Volume of platinum is measured in `cm^{3}`, `m^{3}`, `inch^{3}` or `mm^{3}`
Platinum Density Calculation
How is the density of platinum calculated?
The density of platinum is calculated by dividing the mass of the platinum metal by its volume.
Density of Commercial Platinum Alloy
What is the density of commercial platinum alloy?
Density of commercial platinum alloy varies depending on the alloy composition. Platinum alloys commonly have a density in the range from approximately 17.5 `\frac{g}{cm^{3}}` to 21.45 `\frac{g}{cm^{3}`}.
What is the density of platinum in `\frac{kg}{cm^{3}}`
| Platinum Density Unit | Platinum Density Values |
|---|---|
| `\frac{kg}{m^{3}}` | 21450 |
| `\frac{kg}{cm^{3}}` | 0.02145 |
| `\frac{kg}{mm^{3}}` | 0.00002145 |
| `\frac{g}{m^{3}}` | `2.145 \times 10^{7}` |
| `\frac{g}{cm^{3}}` | 21.450 |
| `\frac{g}{mm^{3}}` | 0.02145 |
| `\frac{g}{mL}` | 21.45 |
| `\frac{lb}{in^{3}}` | 0.775 |
| `\frac{lb}{ft^{3}}` | 1339.5 |
| `\frac{lb}{gallon}` | 178.9 |
Platinum Alloy Density Chart
The platinum density chart for different types of platinum alloy, such as Pt950, Pt900, Pt850 and pure platinum, is as follows:
| Platinum Alloy | Density in g/cm3 |
|---|---|
| Pure Platinum | 21.45 |
| Pt950 | 20.64 |
| Pt900 | 19.88 |
| Pt850 | 19.18 |
Factors Deciding The Density of Platinum
- Impurities in the platinum metal: Pure platinum (Pt) has a density of 21.45 g/cm3, but as impurities in the metal increase, the atomic structure changes so does the density.
- Temperature: As the platinum temperature increases, the metal starts to expand thermally. The density of platinum is inversely proportional to the temperature.
- Alloy: Platinum is often combined with alloy materials such as palladium, iridium, ruthenium, cobalt and other metals to improve its strength, hardness, durability and other properties. The density of platinum changes with the change in the alloy elements.
- Different manufacturing processes, such as the casting process (investment casting, sand casting), metal undergoes a change in the internal structure and the porosity that affects the density.
- Phase transformation, Cold working & Deformation of metal: When there is a phase transformation during cooling, cold working and when it goes through deformation, the density of platinum changes.
Importance of Platinum Density
- The density of platinum is important in calculating the weight of platinum while manufacturing jewellery, laboratory equipment, electrical components and other platinum products.
- Weight Calculation: While designing automobiles, industrial equipment, jewellery and electrical components, it becomes important to calculate and optimise the weight of the material; hence, the density of platinum is important.
- Purity Testing: Density can be used as one of the methods for checking platinum purity. Pure platinum has a density of approximately 21.45 g/cm3, while platinum alloys have different densities depending on their composition.
- Structural and mechanical design: Density plays a crucial role in designing mechanical and structural components, influencing factors such as stress, strain, ultimate tensile strength, yield strength, deformation, fatigue, and component failure.
- Density of aluminium is 7.9 `\frac{g}{cm^{3}}' which is 3 times less than aluminium density.
- Density of gold is 19 `\frac{g}{cm^{3}}' which is less than plantinium.