Lanthanum sesquioxide

HCID 150906CAS 1312-81-8

基本情報

標準SMILES: [La+3].[La+3].[O-2].[O-2].[O-2]
InChIKey: MRELNEQAGSRDBK-UHFFFAOYSA-N
分子式: La2O3
平均分子量: 325.809 g/mol

名称と識別子

優先名称: Lanthanum sesquioxide
IUPAC: bis(lanthanum(3+));tris(oxygen(2-))

名称と別名

Lanthanum oxide1312-81-8LanthanaLanthanum sesquioxideLanthanum oxide (La2O3)Dilanthanum trioxideDilanthanum oxideLanthanum(3+) oxideLanthanum trioxideLanthania (La2O3)4QI5EL790WLa(2)O(3)

名称をさらに表示

RefChem:152325DTXCID4030209215-200-5682-684-6DTXSID7051478Lanthanum(III) oxideLanthanum(III)OxideLa2O3

データベース識別子

CAS: 1312-81-8
PubChem CID: 150906
UNII: 4QI5EL790W
EC Number: 215-200-5、682-684-6

物性

構造計算による物性

極性表面積: 3 Å²
水素結合供与体数: 0
水素結合受容体数: 3
回転可能結合数: 0
重原子数: 5
形式電荷: 0
複雑度: 0

実験および物理化学的性質

Chemical ClassesMetals -> Rare Earth Metals

SpringerMaterials Propertiesdielectric constant

Density6.51 @25 °C

Boiling Point3620 °C @760 [mm Hg]

Melting Point2304 °C

Physical Description · 2 件

Other Solid; Dry Powder; Large Crystals

White solid; Insoluble in water; [Merck Index] Soluble in acids; [Hawley]

安全と法規制

GHS分類

GHS Classification · 6 件

This chemical does not meet GHS hazard criteria for 59.9% (370 of 618) of all reports.

Warning

H315 (39.5%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 618 reports by companies from 15 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Not Classified

危険有害性情報

Regulatory Information · 4 件

Chemical: Lanthanum oxide (La2O3)

Lanthanum oxide (La2O3) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Lanthanum oxide (La2O3) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 24-01-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15267

Lanthanum oxide (La2O3): Does not have an individual approval but may be used under an appropriate group standard

Hazards SummarySee Lanthanum. See RARE EARTH METALS and linked occupational diseases.

Hazard Classes and Categories · 2 件

Skin Irrit. 2 (39.5%)

Not Classified

安全と保護具

Protective Action Criteria (PAC) · 3 件

30 [mg/m3]

330 [mg/m3]

2000 [mg/m3]

毒性情報

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

化学と産業

用途と製造

Uses · 2 件

Used in calcium lights, optical glass, ceramics, carbon-arc electrodes, phosphors, and refractories; [Hawley]

Glass Manufacturing [Category: Industry]

U.S. Production2023: 40,000,000 - <55,000,000 lb

Consumer UsesCatalyst

Industry UsesCatalyst

General Manufacturing Information · 2 件

All Other Chemical Product and Preparation Manufacturing

Lanthanum oxide (La2O3): ACTIVE