| Name | dysprosium trichloride |
| Synonyms | NSC 174321 Dysprosium chloride Dysprosium trichloride dysprosium trichloride Dysprosium(III) chloride Dysprosium chloride (DyCl3) Dysprosium(III) trichloride DysprosiuM(III) chloride, anhydrous, DyCl3 |
| CAS | 10025-74-8 |
| EINECS | 233-039-9 |
| InChI | InChI=1/3ClH.Dy/h3*1H;/q;;;+3/p-3 |
| Molecular Formula | Cl3Dy |
| Molar Mass | 268.86 |
| Density | 3.67g/mLat 25°C(lit.) |
| Melting Point | 680°C(lit.) |
| Boling Point | 1500°C |
| Water Solubility | Soluble in water. |
| Vapor Presure | 33900mmHg at 25°C |
| Appearance | White powder |
| Specific Gravity | 3.67 |
| Color | white |
| Merck | 14,3482 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Hygroscopic |
| MDL | MFCD00010984 |
| 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. S36 - Wear suitable protective clothing. |
| WGK Germany | 2 |
| RTECS | JW0700000 |
| TSCA | Yes |
| HS Code | 28469022 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Physical and chemical properties | Dysprosium chloride is the chloride of dysprosium, the chemical formula is DyCl3. It is a white to yellow solid that rapidly absorbs water in humid air to form hexahydrate (DyCl3 · 6H2O). Heating of hexahydrate will produce partial hydrolysis to form oxychloride (DyOCl). |
| application | dysprosium chloride can be used to prepare other dysprosium salts. Using tungsten cathode electrolysis to DyCl3-LiCl-KCl the co-melt system, metal dysprosium can be obtained. This reaction will pass through Dy2. |
| Preparation | DyCl3 is usually prepared by the "ammonium chloride method". The selection material can be dysprosium oxide, chloride, oxychloride or dysprosium chloride hexahydrate. This method will produce (NH4)2[DyCl5]: 10 NH4Cl Dy2O3 → 2 (NH4)2[DyCl5] 6 NH3 3 H2ODyCl3 · 6H2O 2 NH4Cl → (NH4)2[DyCl5] 6 H2O pentachloride is thermally decomposed according to the following formula: (NH4)2[DyCl5] → 2 NH4Cl DyCl3 thermal decomposition reaction passes through (NH4)[Dy2Cl7] intermediate. Dy2O3 reacts with hydrochloric acid solution to crystallize hexahydrate DyCl3 · 6H2O. Dysprosium chloride is a medium-strong Lewis acid, which is a hard acid in HSAB (hard and soft acid-base) theory. It can react with sodium fluoride in aqueous solution to produce dysprosium fluoride: DyCl3 3 NaF → DyF3 3 NaCl |
| use | scientific research reagents, biochemical research |