Name | scandium trichloride |
Synonyms | NSC 132051 Scandium chloride SCANDIUM CHLORIDE SCANDIUM TRICHLORIDE scandium trichloride Scandium trichloride Scandium(3+) chloride SCANDIUM(III) CHLORIDE Scandium chloride (ScCl3) ScandiuM(III) chloride, anhydrous, ScCl3 |
CAS | 10361-84-9 |
EINECS | 233-799-1 |
InChI | InChI=1/3ClH.Sc/h3*1H;/q;;;+3/p-3 |
Molecular Formula | Cl3Sc |
Molar Mass | 151.31 |
Density | 2.39g/mLat 25°C(lit.) |
Melting Point | 960°C(lit.) |
Boling Point | 962.79°C (estimate) |
Water Solubility | Soluble in water. Insoluble in alcohol |
Vapor Presure | 33900mmHg at 25°C |
Appearance | Powder |
Specific Gravity | 2.39 |
Color | white |
Merck | 14,8392 |
Stability | hygroscopic |
Sensitive | Hygroscopic |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 2 |
RTECS | VQ8925000 |
TSCA | Yes |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | scientific research reagents, biochemical research scandium chloride can be used to make high melting point alloys. The preparation of scandium master alloy by doping method, scandium fluoride or scandium oxide metal thermal reduction method and molten salt electrolysis method has been reported. The doping method is prepared by mixing metal scandium into aluminum alloy. The price of metal scandium is expensive, the burning loss in the melting process is large, and the cost of intermediate alloy is high; the corrosion and toxic hydrogen chloride are used in the preparation of scandium fluoride by the thermal reduction method of scandium fluoride metal, and the thermal reduction temperature of the metal is also very high; The actual yield of scandium by the thermal reduction method of scandium oxide metal is not high, the apparatus of molten salt electrolysis is complex and the conversion rate is not high. |
Application | 1. Aluminum-magnesium thermal reduction of anhydrous scandium chloride preparation of aluminum-magnesium-scandium intermediate alloy: small-scale test and expanded test have achieved good indicators, basically determined the preparation process conditions of aluminum-magnesium-scandium intermediate alloy, it has laid a certain foundation for semi-industrial experiments. The small-scale test results show that the suitable scandium content of anhydrous scandium chloride molten salt is 8% and the suitable stirring intensity is 4~6 times when 500g is charged for argon stirring test; the suitable time for the reduction of anhydrous scandium chloride by aluminum, magnesium and scandium is 20min. Three comprehensive condition tests show that the average scandium content of the ingot is 1.76% ~ 1.81%, and the yield of scandium is 88% ~ 90.5%: the yield of scandium is 78.0% ~ 79.0% when charged with G of argon stirring test; The yield of scandium is 90.0% ~ 90.3% when charged with 2kg grade molten salt Bell pressing and argon stirring test; the yield of scandium was 89.2% ~ 90.0% when the molten salt Bell was charged with 4kg grade and the mixture was stirred with argon. 2. Aluminum (Ⅲ) alloy: a method for electrolytic production of high-purity aluminum (Ⅲ) alloy, characterized in that scandium chloride or scandium fluoride is added into the electrolyte of three-layer liquid electrolysis to produce high-purity aluminum (Ⅲ) alloy by direct electrolysis, fluoride chloride or pure fluoride is used as the electrolyte. |