Infusum Rosae Acidum Concentratum, B.P.C. Concentrated Acid Infusion of Roses.

Botanical name: 

Format explanation

Related entries: Red Rose

Dried Red Rose Petals, in No. 20 powder 20.00 | 4 ounces
Diluted Sulphuric Acid, a sufficient quantity.
Alcohol (20 per cent.), a sufficient quantity.

Moisten the powder with sufficient alcohol mixed with one-fortieth its volume of diluted sulphuric acid, macerate for two hours, then pack in a glass percolator and percolate slowly with more of the acidified alcohol, until 92.5 (18 ½ fluid ounces) has been collected. Add to this 7.5 (1 ½ fluid ounces) of diluted sulphuric acid, set aside for seven days, and filter.

A product closely resembling acid infusion of roses is obtained by diluting 1 part of this preparation with 7 parts of distilled water.

Dose.—2 to 4 mils (½ to 1 fluid drachm).

The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.