How to identify platinum
Platinum (platinum) is a precious precious metal that is highly favored for its pure, rare and corrosion-resistant properties. However, there are also many imitation products or inferior products on the market, and how to accurately identify platinum has become the focus of consumers. This article will combine recent hot topics and structured data to introduce you in detail the identification method of platinum.
1. Basic characteristics of platinum
Platinum (Platinum, chemical symbol Pt) is a natural white metal with the following characteristics:
| characteristic | Value |
|---|---|
| density | 21.45 g/cm³ |
| Melting point | 1768°C |
| hardness | 4-4.5 (Mohs hardness) |
| Common purity | Pt900, Pt950, Pt990 |
Platinum has a higher density than gold and silver, and is not easy to oxidize, and can still maintain its luster after long-term wear.
2. Methods for identifying platinum
Here are several common platinum identification methods:
| method | Operation steps | Things to note |
|---|---|---|
| Observation sign | Check whether there are "Pt" or "Platinum" marks on the inside of the jewelry and mark the purity (such as Pt950) | Some imitations may also forge logos, and need to be verified in combination with other methods. |
| Density test | Calculate density by measuring weight and volume, close to 21.45 g/cm³ is true | Need to use precision instruments, suitable for professional institutions |
| Acid test | Use nitric acid to drop on the surface, and the platinum will not react; imitation products will discolor or corrode | Be careful to avoid damage to jewelry |
| Magnetic testing | Platinum is non-magnetic and will not be attracted by magnets | Some imitations may also be non-magnetic and need to be combined with other methods. |
| Professional testing | Sent to jewelry appraisal agency for analysis using X-ray fluorescence spectrometer | The results are the most accurate, but the fee is required |
3. Recent hot topics: Platinum market trends
According to the hot content of the entire network for the past 10 days, the following are the market trends and related topics about platinum:
| topic | Popularity index | Main content |
|---|---|---|
| Platinum price fluctuations | ★★★★☆ | Affected by the international situation, platinum prices have risen slightly recently |
| New Platinum Jewelry | ★★★☆☆ | Many brands launch simple style platinum jewelry, focusing on young markets |
| Platinum recycling scam | ★★★★★ | Exposed illegal merchants replaced inferior metals in the name of "low price recycling" |
| The difference between platinum and white K gold | ★★★☆☆ | Popular science articles emphasize the differences in the components and values of the two |
4. Platinum maintenance tips
In order to maintain the luster of platinum and extend its service life, the following things are recommended:
1. Wash regularly with gentle soapy water and wipe dry with a soft cloth.
2. Avoid contact with perfumes, cosmetics and other chemicals.
3. Store separately to avoid friction with other accessories.
4. Go to professional shops to check once a year to ensure that the inlay is firm.
5. Summary
Platinum is highly sought after for its unique value, but there are also many imitations on the market. Through observing marks, density tests, acid tests and other methods, the authenticity can be initially identified. For high-value jewelry, it is recommended to send it to a professional institution for testing. At the same time, paying attention to market trends and maintenance knowledge can help you better choose and maintain platinum jewelry.
check the details
check the details
en
