Bulgarian rose absolute is produced from special selection of rose concretes by multiple extraction with ethyl alcohol.
It is a reddish or orange-reddish viscous liquid with a very rich, full flowery odor, with honey notes.
The present standard of high-grade Bulgarian rose absolute is as follows:
Density at 20 C - 0.9502 to 0.9910
Refraction number at 25 C - 1.4900 to 1.5130
Optical rotation in 100 mm tube - +9 to +14
Acid number - 4 to 11
Ester number - 13 to 30
Acetylation number - 217 to 267
Total alcohols, like geraniol - 69.5 to 88.5 %
Combined alcohols, such as geraniol - 2.0 to 4.7 %
Total alcohols, such as geraniol - 64.9 to 78.2 %
Stearoptene - 15 – 23 %
