Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Substance profile

Aluminum isopropoxide

Aluminum isopropoxide is a white solid.

CAS 555-31-7 C9H21AlO3 204.24 g/mol Danger

01 · Identification

What Aluminum isopropoxide is

Aluminum isopropoxide is a white solid. Its molecular formula is C9H21AlO3 and its molecular weight is 204.24 g/mol. It melts at 119 °C.

Under the GHS it carries the signal word Danger.

CAS number555-31-7
EC number209-090-8
Index number603-042-00-3
Molecular formulaC9H21AlO3
Molecular weight204.24 g/mol

Other names for Aluminum isopropoxide

  • aluminium-tri-isopropoxide

02 · GHS classification

Hazards and label elements

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Signal wordDanger
Hazard statements assigned to Aluminum isopropoxide
CodeHazard statement
H228 Flammable solid.

Precautionary statements: P101, P102, P103, P501

03 · Physical and chemical properties

Aluminum isopropoxide properties

Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.

Property Value Conditions Source
Boiling point 135 °C (275 °F) at 10 mmHg (reduced pressure) HSDB
Melting point 119 °C (246.2 °F) DOE PAC
Density 1.025 g/cm³ at 20 °C HSDB
1.035 g/cm³ at 25 °C DOE PAC
Solubility Soluble in ethanol, isopropanol, benzene, toluene, chloroform, carbon tetrachloride, petroleum hydrocarbons. HSDB
Lower explosive limit (LEL) ...Violently explosive when they come into contact with water. Aluminum alkyls HSDB

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

04 · Handling and storage

Storing and handling Aluminum isopropoxide

Storage conditions

Extremely reactive with air, moisture and compounds containing active hydrogen and therefore must be kept under a blanket of inert gas. /Aluminum alkyls/

Source: Hazardous Substances Data Bank (HSDB)

Incompatible materials

Extremely reactive with air, moisture, and compounds containing active hydrogen... /Alkyl aluminum compounds/

Source: Hazardous Substances Data Bank (HSDB)

Planning storage for a mix of chemicals? Check Aluminum isopropoxide in the storage compatibility matrix →

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