Stearic Acid?

What is Stearic Acid?

Acido estearico

Stearic acid is a saturated fatty acid present in the vast majority of animal and vegetable oils and fats. In addition, it is found accompanied by other saturated fatty acids and other unsaturated fatty acids. C18H36O2 responds to its formula, which corresponds to the saturated carboxylic acid mono-straight chain with 18 carbon atoms. It is marketed by different purities depending on the origin and the process of extraction always accompanied by palmitic acid.

CAS: 67701-03-5
EC number: 266-928-5

  • Origin and extraction:
  • Properties and applications:
  • Products and presentations:

Tab 1

It may come from vegetable or animal origin. Depending on its use we will use one or the other.

The one from vegetable origin is mainly obtained by the hydrolysis of palm oil (or fractions as stearin or olein), followed by the hydrogenation and its subsequent distillation.

Meanwhile, the stearic acid of animal origin is obtained by the hydrolysis of animal fat (tallow), followed by the hydrogenation and subsequent distillation. Depending on the degree of hydrogenation (Iodine) we can obtain different qualities.

Tab 2

Stearic acid is solid at room temperature, generally white with a slight yellowish hue, almost odorless. Its freezing point is between 55º-65º depending on the content and degree of hydrogenation.

The main applications of stearic acid are in lubricants for plastics, textile auxiliary products, cosmetics production of soaps or detergents. It is also applied to the production of waxes, esters, metallic salts, hydrophobic coating agents, candles or rubber tires.

It also has applications in the pharmaceutical industry or as a food additive in the production of plastic containers for various foods.

It is a very important component in the oleochemical industry. It is a substance with multiple possibilities, features and applications that achieves a great satisfaction to different markets.

The growth of our industry has been originated by the demand from different sectors. This is a fairly efficient and cost-effective alternative that it is becoming a quite noticeable gap since we are catapulting as a fairly competitive force. The sustainability and versatility of our products and services is fully guaranteed and their functionality and quality to achieve flawless solutions.

Tab 3

Vegetable stearic acid:
CYPTEC AE-50/50 V (approximately 50% stearic acid)
CYPTEC AE-60/40 V (approximately 40% stearic acid)
CYPTEC AE-01 V (approximately 65% stearic acid)

Acido esteárico de origen animal:
CYPTEC AE-01 (approximately. 65% stearic acid and iodine I. <1)
CYPTEC AE-03 (60-65% stearic acid and iodine I. <3)
CYPTEC AE-08 (55-65% stearic acid and iodine I. <8)

All products can be found in packaged flakes in bags of 25 kg., 500kg. or 1.000kg. sacks. They may also be marketed in bulk or tankers. For any questions or for more information please contact us using our web form or by telephone.