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alumina

CAS 1344-28-1Al2O3MW 101.961

alumina (CAS 1344-28-1) — formula Al2O3, molecular weight 101.961; category organic chemicals.

Specifications

CAS Number1344-28-1
Molecular FormulaAl2O3
Molecular Weight101.961
Melting Point3632 °F (NIOSH, 2024)
Boiling Point5396 °F at 760 mmHg (NIOSH, 2024)
CategoryOrganic Chemicals

Purchase Profile

What this product is

alumina is a carbon-based organic compound with CAS registry number 1344-28-1 and molecular formula Al2O3 (molecular weight 101.961), belonging to the organic chemicals segment of chemical raw materials.

Identification

CAS number: 1344-28-1

Its molecular formula Al2O3 comprises 2 Al, 3 O atoms.

Also known as: alumina · Aluminium Oxide · Activated alumina

Category: organic chemicals

Frequently Asked Questions

What is the CAS number of alumina?

The CAS registry number of alumina is 1344-28-1.

What is the molecular formula and molecular weight of alumina?

Molecular formula Al2O3, molecular weight 101.961.

What other names is alumina known by?

It is also registered under: alumina, Aluminium Oxide, Activated alumina.

Which category does alumina belong to?

Category: Organic Chemicals.

PubChem Public Data

Public-database records for alumina (CAS 1344-28-1), reproduced here for independent cross-checking.

Safety classification and hazard statements

GHS notification summary92.8% (2917 / 3142)
Reported hazard statementsH335 (100%), H372

This chemical does not meet GHS hazard criteria for 92.8% (2917 of 3142) of all reports.

Reported as not meeting GHS hazard criteria by 2917 of 3142 companies (only 7.2% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

Regulatory listings

Regulatory & Food ContactFDA Regulatory Status of Color Additives: Drugs
FDA Cumulative Estimated Daily Intake (CEDI): FCS
FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
FDA Inventory of Effective Food Contact Substance (FCS) Noti: FCS
Aluminum oxide (CAS Reg. No. 1344-28-1)
As a component of inorganic pigments in combination with other authorized, inorganic substances wherethe FCS w
GHS notification summary92.8% (2917 / 3142)

Physical description and handling notes

  • Dry Powder; Other Solid; Liquid; Other Solid; Dry Powder; Large Crystals; Other Solid; Dry Powder; Liquid; Liquid; Dry Powder; Large Crystals; Wet Solid; Dry Powder; Large Crystals; Large Crystals; Other Solid; CBI; Dry Powder; Wet Solid; Large Crystals; Other Solid; Gas Vapor; Liquid; Other Solid; Dry Powder
  • White, odorless, crystalline powder; [NIOSH]
  • WHITE POWDER.
  • White, odorless, crystalline powder.
  • White crystalline powder
  • White powder, balls or lumps or various mesh

Reported physical properties

沸点5396 °F at 760 mmHg (NIOSH, 2024)
沸点2977 °C
沸点3000 °C
沸点5396 °F
沸点2977 °C @760 [mm Hg]
熔点3632 °F (NIOSH, 2024)
熔点2030 °C
熔点2054 °C
熔点3632 °F
熔点2072 °C

How this substance is indexed

CAS Registry Number1344-28-1
PubChem CID9989226
分子式Al2O3
IUPAC 名称dialuminum;tris(oxygen(2-))
UNII（FDA）LMI26O6933

Documented uses

  • Used to produce aluminum; Also used as an abrasive, catalyst, absorbent (petroleum industry), filler for coatings, food additive; Also used in ceramics, glass, refractories, electrical insulators and resistors, fluxes, dental cements, and chromatographic applications; [CHEMINFO] alpha-Alumina is the main component of technical grade alumina. Corundum is natural Al2O3. Emery is an impure crystalline variety of Al2O3. [NIOSH]
  • Aluminum Producing [Category: Industry]
  • Petroleum Production and Refining [Category: Industry]
  • Soldering [Category: Heat or Machine]
  • Painting (Pigments, Binders, and Biocides) [Category: Paint]
  • Cement Producing [Category: Industry]

Names this substance appears under

ALUMINUM OXIDE; 1344-28-1; Aluminium oxide; Aloxite; gamma-Alumina; Aluminum trioxide; Dialuminum trioxide; Abramant; Abramax; Abrasit; Almite; Alundum; Saffie; delta alumina; Aluminum lake; Theta alumina

Computed molecular descriptors

分子量101.961
氢键供体数0
氢键受体数3
可旋转键数0
精确质量101.947821
单同位素质量101.947821
拓扑极性表面积3
重原子数5
形式电荷0
复杂度0

Database abstract

Activated alumina · CAS 1344-28-1 · Al2O3. UNII LMI26O6933. 沸点: 5396 °F at 760 mmHg (NIOSH, 2024); 沸点: 2977 °C; 沸点: 3000 °C.

Source: PubChem / Wikidata; the batch COA governs where values differ.

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