Rubber Hydrochloride

Name:
Rubber Hydrochloride
Detailed information:
A hydrochloride derivative, as distinct from a chlorine derivative.

Properties:

Thermoplastic, white powder or clear film; odorless; tasteless. Chlorine content 29–30.5%. Soluble in aromatic hydrocarbons. Softens at 110–120C. Films are highly resistant to moisture, oils, acids, and alkalies but tend to become brittle on exposure to sunlight. The life of such films is greatly extended by the incorporation of suitable stabilizers and plasticizers. Nonflammable, nontoxic.

Derivation:

A solution of natural rubber is treated with anhydrous hydrogen chloride under pressure and at low temperature. After neutralization of excess hydrochloric acid, the product is precipitated by the addition of ethanol.

Use:

Protective coverings for machinery, rain clothing, shower curtains, food packaging.