Agent Name

Aluminum stearate

Alternative Name

Aluminum tristearate

CAS Number

637-12-7

Formula

C18-H36-O2.1/3Al

Major Category

Other Classes

Synonyms

Aluminum tristearate; Alugel 34TN; Aluminum (III) stearate; Aluminum octadecanoate; Aluminum stearate; Aluminum stearate (1:3); Aluminum stearate, tribasic; Aluminum(III) stearate; Metasap XX; Monoaluminum stearate; Octadecanoic acid, aluminum salt; Rofob 3; SA 1500; Stearic acid, aluminum salt; Tribasic aluminum stearate; [ChemIDplus]

Category

Stearates

Description

White solid; [Hawley] White powder; Insoluble in water; [MSDSonline]

Sources/Uses

Used for waterproofing fabrics and ropes; in paint and varnish driers; for thickening lubricating oils; in cements (waterproofing additive); in light-sensitive photographic compositions; as gelling agent for alkyd paints and varnishes; as defoamer for oil drilling fluids; as retarder for polysulfide dental impression materials; in greases, lubricants, cutting compounds, cosmetics, and pharmaceuticals; as flatting agent; as defoaming agent in beet sugar and yeast processing; as a water-repellent soap (for natural stone surfaces); to gel petroleum fractions in the preparation of high-energy rocket fuels and plastic explosives; in pesticide formulations; [HSDB]

Comments

May cause eye irritation; [HSDB] May cause irritation; [MSDSonline] See "Aluminum." See "STEARATES."

Exposure Assessment
TLV (ACGIH)

1 mg/m3, respirable fraction

PEL (OSHA)

15 mg/m3(total dust)

MAK

4 mg/m3(inhalable fraction), 1.5 mg/m3 (respirable fraction)

Explanatory Notes

TLV, PEL, and MAK values for aluminum metal and insoluble compounds;

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Processes

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