Aluminium Isopropoxide

Description

Aluminum Tri-isopropoxide · CAS 555-31-7 · C9H21O3Al. UNII R7486191H8. Melting Point: 119 °C; Density: 1.025 @ 20 °C; Density: 1.035 @25 °C.

Identification

CAS Registry Number	555-31-7
PubChem CID	11143
Molecular formula	C9H21O3Al
IUPAC name	aluminum tris(propan-2-olate)
UNII (FDA)	R7486191H8

Computed Descriptors

Molecular Weight	204.24
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	204.1306079
Monoisotopic Mass	204.1306079
Topological Polar Surface Area	69.2
Heavy Atom Count	13
Formal Charge	0
Complexity	10.8

Physical & Chemical Properties

Melting Point	119 °C
Density	1.025 @ 20 °C
Density	1.035 @25 °C
Other Experimental Properties	MP: 128-132 °C; BP: 138-148 °C @ 10 mm Hg

Physical description & handling notes

• Liquid
• White hygroscopic solid; Soluble in ethanol, benzene and other organic solvents; Decomposes in water; [Merck Index] White granules with an odor of alcohol; [MSDSonline]
• White solid
• WHITE CRYSTALS
• 135 °C @ 10 mm Hg; 131 °C @ 7.5 mm Hg; 125.5 °C @ 5.5 mm Hg; 113 °C @ 2.5 mm Hg; 106 °C @ 1.5 mm Hg; 94 °C @ 0.5 mm Hg
• Soluble in ethanol, isopropanol, benzene, toluene, chloroform, carbon tetrachloride, petroleum hydrocarbons.

Regulatory Status

GHS notification summary	1.4% (11 / 811)

GHS Hazard Classification

GHS notification summary	1.4% (11 / 811)
Reported hazard statements	H228, H314 (55%), H318 (55.1%), H319 (20%), H336 (20%)

Documented Uses

• Used in Meerwein-Ponndorf reactions, in alcoholysis and ester exchange, as a dehydrating agent, to impregnate textiles, and in the production of pharmaceuticals, cosmetics, aluminum soaps, paints, varnishes, insecticides, and waterproofing finishes for textiles; [HSDB]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• In Meerwein-Ponndorf reactions; in alcoholysis and ester exchange; synthesis of higher alkoxides, chelates, acylates; formation of aluminum soaps, formulation of paints; waterproofing finishes for textiles.
• ... Used to adjust the viscosity of varnishes, to impregnate textiles, as intermediates in the production of pharmaceuticals, and as antitranspirants in cosmetics.
• /Used/ as stabilizer in formulations of the insecticide amitraz [N'-(2,4-dimethylphenyl)-N-[[(2,4-dimethylphenyl)imino]-N-methylmethanimidamide]] applied to growing crops or animals.

Synonyms

Aluminium isopropoxide; 555-31-7; Aluminum isopropoxide; Aluminum isopropylate; Aluminum triisopropoxide; Triisopropoxyaluminum; Aluminium triisopropanolate; Aluminum isopropanolate; 2-Propanol, aluminum salt; Aluminum sec-propanolate; Tris(isopropoxy)aluminum; Isopropanol aluminum salt; 2-Propanol aluminum salt; ALUMINUM TRIISOPROPYLATE; Aluminum(II) isopropylate; Triisopropyloxyaluminum

Frequently Asked Questions

What are the CAS number and molecular formula of Aluminum Tri-isopropoxide?

CAS 555-31-7; molecular formula C9H21O3Al; molecular weight — g/mol.

What other names is Aluminum Tri-isopropoxide known by?

Aluminium isopropoxide, 555-31-7, Aluminum isopropoxide, Aluminum isopropylate, Aluminum triisopropoxide, Triisopropoxyaluminum.

Is Aluminum Tri-isopropoxide classified as hazardous?

1.4% of GHS notifications report no hazard classification (11 of 811).

What are the key physical properties of Aluminum Tri-isopropoxide?

Melting Point: 119 °C; Density: 1.025 @ 20 °C; Density: 1.035 @25 °C; Other Experimental Properties: MP: 128-132 °C; BP: 138-148 °C @ 10 mm Hg.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.