Praseodymium-III-oxide
Praseodynium oxide
CAS: 12037-29-5
Molecular Formula: O3Pr2
Praseodymium-III-oxide - Names and Identifiers
Praseodymium-III-oxide - Physico-chemical Properties
| Molecular Formula | O3Pr2 |
| Molar Mass | 329.81 |
| Density | 6.5g/mLat 25°C(lit.) |
| Melting Point | 2500°C |
| Water Solubility | insoluble |
| Appearance | Dark green powder |
| Color | Dark green to dark brown or black |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| MDL | MFCD00011178 |
| Physical and Chemical Properties | Character black powder. melting point 2042 ℃ relative density 6.88 solubility insoluble in water, soluble in acid to form the corresponding III-valent salts. |
| Use | Used in glass, metallurgy, and as a phosphor additive |
Praseodymium-III-oxide - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 1 |
| RTECS | TU1480000 |
| TSCA | Yes |
| HS Code | 28469017 |
Praseodymium-III-oxide - Upstream Downstream Industry
| Raw Materials | Rare earth chlorides |
Praseodymium-III-oxide - Reference
| Reference Show more | 1. Ma Yuchang, Xing Zhihua, Yang Xin, et al. Study on Anti-gouty Arthritis Activity of Puerarin-Rare Earth Complex [J]. Journal of Harbin University of Commerce (Natural Science Edition), 2018, v.34;No.151(02):14-18. |
Praseodymium-III-oxide - Nature
Open Data Verified Data
black powder. Melting point of 2200 deg C; d 7. 07. Insoluble in water, soluble in mineral acids. Good electrical conductivity.
Last Update：2024-01-02 23:10:35
Praseodymium-III-oxide - Preparation Method
Open Data Verified Data
The rare earth chloride solution obtained from the treatment of monazite or mixed rare earth ore is obtained by extraction, precipitation with oxalic acid, separation and ignition.
Last Update：2022-01-01 09:06:44
Praseodymium-III-oxide - Introduction
Insoluble in water, easily soluble in inorganic acids, forming corresponding salts, good conductivity, at 600°C The conductivity is 10 million times that of Pr2O3.
Last Update：2022-10-16 17:12:38
Praseodymium-III-oxide - Use
Open Data Verified Data
used as ceramic pigment, glass colorant, refractory ceramic, etc. Purity of 96% praseodymium oxide is specially used for the manufacture of yellow ceramic pigment zirconium praseodymium, introduced in the glass or its Crystal 2%~ 4% praseodymium oxide, can be provided for glass bright green tone. Because of its electrical conductivity, it is suitable for making heating elements of an oven (or furnace, kiln). High purity praseodymium oxide can be used for luminescent materials, crystal materials, optical fiber doping, electronic ceramics, etc.
Last Update：2022-01-01 09:06:45
Praseodymium-III-oxide - Safety
Open Data Verified Data
inhalation of dust, occupational pneumoconiosis. Staff should be protected. If the skin and eyes are touched, they should be immediately rinsed with flowing water. The working environment should have good ventilation conditions. Store in a ventilated, dry place. Should pay attention to moisture, prevent installation
Breakage.
Last Update：2022-01-01 09:06:45
Praseodymium-III-oxide - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | praseodymium oxide is used in architectural ceramics and daily ceramics. it is mixed with ceramic glaze to make colored glaze, or it can be used as underglaze pigment alone. the pigment made is light yellow, pure and elegant. Used to make permanent magnets. Using cheap praseodymium-neodymium metal instead of pure neodymium metal to make permanent magnet materials, its antioxidant properties and mechanical properties are significantly improved, and it can be processed into magnets of various shapes. Widely used in various electronic devices and motors; praseodymium oxide is used in petroleum catalytic cracking. In the form of praseodymium neodymium enrichment, Y-type zeolite molecular sieve is added to prepare petroleum cracking catalyst, which can improve the activity, selectivity and stability of the catalyst; It is used for abrasive polishing; It is also used in the field of optical fiber. The reagent is used for the solid-state synthesis of a new type of ternary reduced molybdenum oxide Pr4Mo9O18. Its structure contains Mo7, Mo13 and Mo19 clusters that were unknown in the past. The new cluster product is a small band gap semiconductor. |
| preparation | praseodymium dioxide can be obtained by boiling Pr6O11 in water or acting with concentrated acetic acid: Pr6O11 3 H2O → 4 PrO2 2 Pr(OH)3 |
| toxicity | see cerium oxide. |
| Use | Used in glass and metallurgical industries, and used as phosphor additive It is a raw material for making praseodymium yellow and is used as a ceramic glaze with bright colors. Used in the glass industry as a colorant, with a green color, can imitate gemstones. Used as a raw material for the production of metal praseodymium and the production of samarium, praseodymium, cobalt permanent magnet alloys, and yellow pigments for ceramics. used in glass, metallurgy, and as phosphor additive scientific research reagent, biochemical research used as raw materials for ceramic glaze, praseodymium yellow pigment and rare earth permanent magnet alloy (Dark brown powder, insoluble in water and soluble in mineral). It can be used for the solid-state synthesis of a new type of ternary reduced molybdenum oxide Pr4Mo9O18. Its structure contains Mo7, Mo13 and Mo19 clusters unknown in the past |
| production method | extraction method monazite concentrate is dissolved in alkali, phosphorus removal and dilute hydrochloric acid to obtain rare earth chloride solution, which is extracted with P2O4-kerosene-HCl-ReCl system, and the rare earth mixture can be divided into three groups: light, medium and heavy rare earth. The raffinate La-Nd group of light rare earths (containing medium rare earth Sm2O3<1%) is separated according to the precipitation order of oxalate: samarium, neodymium, praseodymium, cerium and lanthanum. Oxalate can be precipitated to form soluble complexes and then precipitated to separate them. After drying, praseodymium oxide can be obtained by burning at 1000 ℃. Its 3 Pr2(C2O4)3 → Pr6O11 7CO2 11CO |
Last Update：2024-04-10 22:29:15
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Product Name: Praseodymium(III, IV) oxide Visit Supplier Webpage Request for quotationCAS: 12037-29-5
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