Praseodymium-Zircon Yellow - Names and Identifiers
Praseodymium-Zircon Yellow - Physico-chemical Properties
| Molecular Formula | ZrSiO4-Pr
|
| Physical and Chemical Properties | Dark yellow fine powder, zircon pigment, tetragonal crystal type. The main component is zircon, and praseodymium ions are interposed in the large lattice of ZrSiO4 in the form of tetravalent and are bright and pure lemon yellow. Insoluble in water, insoluble in acid or alkali solution, strong coloring, wide reaction temperature range, and strong adaptability to glazes. In a weak reducing atmosphere, it is more stable than vanadium yellow, but if the reducing atmosphere is slightly stronger, it can fade. |
Praseodymium-Zircon Yellow - Introduction
Praseodymium yellow, chemical formula for Pr6O11, is a yellow powder solid. The following is about the nature, use, preparation and safety information of praseodymium yellow:
Nature:
1. Appearance: Praseodymium yellow is a yellow powdery solid.
2. Density: the relative density is 6.13 g/cm.
3. Melting Point: the melting point of praseodymium yellow is about 2430 ℃.
4. Solubility: praseodymium yellow is almost insoluble in water, but soluble in acid.
Use:
1. Pigment: praseodymium yellow can be used as a pigment in painting and paint industry, providing bright yellow.
2. Ceramic and glass industry: praseodymium yellow is used as a pigment for ceramics and glass, which can change its color and appearance.
3. Optical applications: praseodymium yellow can be used in the production of optical glass and filters.
Preparation Method:
At present, the commonly used method for preparing praseodymium yellow is to react praseodymium metal with oxidant at high temperature to generate praseodymium yellow. The reaction equation is as follows:
2Pr O2 → Pr6O11
Safety Information:
Praseodymium yellow is generally not considered toxic, but it is still recommended to wear appropriate protective equipment (glasses, gloves, etc.).
2. Avoid inhalation of praseodymium yellow dust, need to pay attention to prevent dust into the respiratory tract.
3. When dealing with praseodymium yellow, pay attention to avoid contact with strong oxidants to avoid chemical reactions or fires.
Last Update：2024-04-10 22:29:15