Rice wax

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Description

A hard, brown wax extracted from ground rice kernels. Rice oil is extracted with cold hexane, then the process is repeated with hot hexane to obtain the wax. Rice wax is used in polishes.

Synonyms and Related Terms

rice bran wax; cera de arroz (Esp.)

Physical and Chemical Properties

Solubility hexane
Iodine value 11.1-19.4
Acid value 15-17
Saponification value 56.9-104.4
Melting Point 75.3-79.9 C
Refractive Index 1.469

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: melting point = 79C
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: melting point = 75.3-79.9, ref. index=1.469, iodine value=11.1-19.4, acid value=15-17; saponification value = 56.9-104.4