| Identification | More | [Name]
Aluminum octadecanoate | [CAS]
637-12-7 | [Synonyms]
ALUMINIUM OCTADECANOATE
ALUMINIUM STEARATE
ALUMINIUM STEARATE, MONO
ALUMINIUM STEARATE, TRI
aluminium tristearate
ALUMINUM MONOSTEARATE
Aluminum octadecanoate
ALUMINUM STEARATE
ALUMINUM STEARATE MONOBASIC
aluminum trioctadecanoate
ALUMINUM TRISTEARATE
Dihydroxyaluminium stearate
STEARIC ACID ALUMINUM DIHYDROXIDE SALT
alugel34tn
aluminum(iii)stearate
aluminumstearate(1:3)
metasapxx
monoaluminumstearate
Octadecanoicacid,aluminiumsalt
octadecanoicacid,aluminumsalt | [EINECS(EC#)]
230-325-5 | [Molecular Formula]
C54H105AlO6 | [MDL Number]
MFCD00019932 | [Molecular Weight]
877.39 | [MOL File]
637-12-7.mol |
| Chemical Properties | Back Directory | [Appearance]
solid | [Melting point ]
103°C | [Boiling point ]
250℃[at 101 325 Pa] | [density ]
1.01 | [vapor pressure ]
0Pa at 25℃ | [solubility ]
Practically insoluble in water and in anhydrous ethanol. | [form ]
powder
| [color ]
white | [Specific Gravity]
1.01 | [Stability:]
Stable. Incompatible with strong oxidizing agents. | [Water Solubility ]
Soluble in alkali, glycol, chlorinated hydrocarbons, petroleum, benzene, turpentine oil, mineral oil, vegetable oil, mixture of benzene, toluene and the three xylene isomers. Insoluble in water, ethanol and ether. | [Merck ]
14,364 | [Exposure limits]
ACGIH: TWA 1 mg/m3 | [Cosmetics Ingredients Functions]
VISCOSITY CONTROLLING
OPACIFYING
ANTICAKING
SKIN CONDITIONING - EMOLLIENT
EMULSION STABILISING | [Cosmetic Ingredient Review (CIR)]
Aluminum Stearate (637-12-7) | [LogP]
22.69 | [Uses]
aluminum stearate is a saline form of stearic acid used as a thickener and emulsifier, and to regulate the stability and suspension of a cosmetic formulation. | [CAS DataBase Reference]
637-12-7(CAS DataBase Reference) | [NIST Chemistry Reference]
Aluminum stearate(637-12-7) | [EPA Substance Registry System]
637-12-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
3
| [RTECS ]
BD0707000
| [TSCA ]
Yes | [REACH Registrations]
Active | [Hazardous Substances Data]
637-12-7(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Description]
Aluminum stearate is a non-stoichiometric compound consisting of mono-, di-, and tri-forms where aluminum distearate is the main constituent, and it forms the stearic coating on aluminum alloy surfaces. It is added to paints, enamels, and varnishes to suspend pigments in oil, prevent separation, reduce the oil required to wet pigments, increase paint body by forming a gel, and flatten varnishes. Aluminum stearate dissolves in heated vegetable oils and coats the surface of pigment particles to prevent settling upon cooling and gelling[1-3]. | [Chemical Properties]
solid | [Definition]
ChEBI: Aluminium tristearate is an aluminium salt. It contains an octadecanoate. | [Preparation]
Aluminum Stearate can be prepared by precipitation: stearic acid is saponified with sodium hydroxide at 55°C to form sodium stearate, followed by precipitation with aluminum(III) chloride, filtration, washing, and drying[2]. | [References]
[1] Tumosa, C. (2001). Newsletter (Western Association for Art Conservation), 23(3), 10–11.
[2] Lon\vcar, E., Lomić, G., Malba\vsa, R., & Kolarov, L. (2003). Preparation and characterization of aluminum stearate. Acta Periodica Technologica, 1 1, 55–60. https://doi.org/10.2298/APT0334055L
[3] Abrashov, A., Grigoryan, N., Korshak, Y., Vagramyan, T., Grafov, O., & Mezhuev, Y. (2021). Regularities of the Formation of a Green Superhydrophobic Protective Coating on an Aluminum Alloy after Surface Modification with Stearic Acid Solutions. Metals. https://doi.org/10.3390/met11111718
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