Scandium

HCID 23952

Notes Reactions

Substructure search Find similar structures

Basic information

CAS: 43238-07-9
Standard SMILES: [Sc]
InChIKey: SIXSYDAISGFNSX-UHFFFAOYSA-N
Molecular formula: Sc
Average molar mass: 44.9559 g/mol
Monoisotopic mass: 44.9559119

Overview

Scandium atom is a rare earth metal atom, a scandium group element atom and a d-block element atom.

Names & identifiers

Preferred name: Scandium
IUPAC: scandium
English name: Scandium
Molecular formula: Sc
Molecular weight: 0

Names & synonyms

SCANDIUM7440-20-2DTXSID9064689ScScandium MetallicumRefChem:58694YUJ4U1EW7RDTXCID1047653231-129-2scandium atomScandium ingotMFCD00016323

Show more names

scandium metalscandium-45escandioScandium - Sc @ 1000 microg/g in Hydrocarbon OilScandium Standard: Sc @ 10 microg/mL in 2% HNO3Scandium Std - Sc @ 5000microg/g in 75 cSt OilScandium Standard: Sc @ 1000 microg/mL in 5% HNO3Scandium Standard: Sc @ 10000 microg/mL in 5% HNO3

Database identifiers

CAS: 43238-07-9、7440-20-2
PubChem CID: 23952
DTXSID: DTXSID9064689
ChEBI: CHEBI:33330
UNII: YUJ4U1EW7R
EC Number: 231-129-2
Nikkaji: J95.314H

Properties

Computed structural properties

Topological polar surface area: 0 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 0
Rotatable bonds: 0
Heavy atoms: 1
Formal charge: 0
Complexity: 0

Experimental & physicochemical properties

Chemical ClassesMetals -> Rare Earth Metals

SpringerMaterials Propertieselectron density of states

Density2.989 @25 °C

Boiling Point2836 °C @760 [mm Hg]

Physical DescriptionSilvery-white solid; [Hawley]

Physicochemical properties

Melting point: 1400 °C · 1400 °C
Density: 3.05 g/cm3 · 3.05 g/cm3
Symbol(GHS): 2 · GHS02
Signal word: Danger
Hazard statements: 228 · H228
Precautionary statements: 210 · P210-P240-P241-P280-P370+P378

Safety & regulation

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 4.8% (5 of 105) of reports.

Danger

H228 (93.3%): Flammable solid [Danger Flammable solids]

P210, P240, P241, P280, and P370+P378 (click each P-code to see the statement)

Aggregated GHS information provided per 105 reports by companies from 5 notifications to the ECHA C&L Inventory.

Hazard information

Regulatory InformationChemical: Scandium

Other Safety InformationIMAP assessments - Scandium: Human health tier I assessment

Hazards SummaryPowdered form is flammable and irritating; [MSDSonline] See RARE EARTH METALS and the linked occupational diseases.

Hazard Classes and CategoriesFlam. Sol. 2 (93.3%)

Safety & protection

Protective Action Criteria (PAC) · 3 items

30 [mg/m3]

330 [mg/m3]

2000 [mg/m3]

Toxicology

Adverse EffectsFibrogenic - Inducing tissue injury and fibrosis (scarring).

Safety data

Signal word: Danger
Symbol(GHS): GHS02
Hazard statements: H228
Precautionary statements: P210-P240-P241-P280-P370+P378

Chemistry & industry

Uses & manufacturing

Uses · 2 items

Found in thortveitite, davidite, ytterbite, orthite, and cerrite, often in association with tin or zirconium; [Merck Index] Occurs in the ores wolframite and thortveitite; No major commercial uses, but has been used in tracer studies and semiconductors; [Hawley]

Semiconductor Manufacturing [Category: Industry]

General Manufacturing InformationScandium: ACTIVE