ALAC

Specifications
Colour, Gardner	4 max.
Acid Value, mgKOH/g	1.0 max.
Saponification Value, mgKOH/g	180 - 200
Hydroxy Value, mgKOH/g	5.0 max.
Iodine Value	8 - 12
Loss On Drying, %	0.2 max.

Packaging sizes	50 kg
Shelf life	2 years
Storage	Tightly closed, at ambient temperature

Composition and Description

ALAC is a light yellow liquid with a very faint odour. It consists of a mixture of molecular distilled lanolin alcohols and highly purified acetylated C16 alcohol.

Features

ALAC has low viscosity and good spreading properties and is rapidly and completely absorbed by the skin without leaving a sticky feeling. It is skin softening and water-repellent, with excellent solubilisation properties. ALAC tends to crystallise at low temperature. It is an emollient with good skin compatibility and decreases the occlusive characteristics of cosmetic formulations. In addition, ALAC is a hydrophobic plasticiser, which leaves a velvety feel on the skin.

Applications

Seeking a skin-penetrating agent with light colour, low viscosity and without stickiness? ALAC would be the right choice. In addition, it has excellent water-repellent properties and can therefore be used as softener in baby-oil, sunscreen-oil and lotion where water-repellent properties are important. It spreads easily on the skin and has the ability to bind pigments in cosmetic fluid and creams. ALAC gives hairsprays a glossy appearance and at the same time reduces the oily feeling of mineral oils.

Dermatology

Acetylated lanolin alcohols were tested according to FDA regulations and no irritating effect on eyes was observed. For over 25 years, no adverse reactions in humans have been observed during manufacturing or in the application of acetylated lanolin alcohols. Tests of the acute oral toxicity in rats showed a LD50, which was larger than the maximum administered dose of 16 ml/kg for acetylated lanolin alcohols.

Processing

At lower temperatures ALAC might become a solid, crystalline mass that can be easily melted by moderate heating. The product can tolerate temperatures up to 80 °C, but heating over a long period of time should be avoided. To protect against autoxidation, ALAC should be stored in closed containers.

Solubility at room temperature

Water: none; acetone: soluble; ethanol, anhydrous: not soluble; ethanol 95%: soluble; mineral oil: soluble; isopropyl myristate: soluble