QC - Misc test for VOLATILE OILS, ALKALOIDS

volatile oils are also known as:

_____________
_____________
_____________

ethereal oils
essences
essential oils

a test for volatile oils that measure the density of a particular oil in comparison with the density of water

specific gravity

the apparatus used to assess the specific gravity of volatile oils

densitometer
westphal balance
pycnometer

what is the spgr range of lemon oil

0.849 - 0.855

what is the spgr range of lavender oil

0.870-0.880

what is the spgr range of orange oil

0.842-0.846

what is the spgr range of spearmint oil

0.917-0.934

what is the spgr range of rose oil

0.848-0.861

a test for volatile oils that involves the analysis of rotation of plane-polarized light

optical rotation

optical rotation test involves analyzing the optical rotation of a solution containing 1g/ml in a _________________

100 mm polarimeter tube

the apparatus used in determining optical rotation:

laurent half-shadow polarimeter

(LEVO / DEXTRO)rotatory = left

levo

(LEVO / DEXTRO)rotatory = right

dextro

what is the specific optical rotation range of lemon oil at 589nm, 20C

+57 to +70

what is the specific optical rotation range of mint oil at 589nm, 20C

-17 to -24

what is the specific optical rotation range of orange oil at 589nm, 20C

+94 to +99

what is the specific optical rotation range of spearmint oil at 589nm, 20C

-45 to -60

a test for volatile oils that measures its ability to bend light

refractive index

a test for volatile oils that designates how the oil responds to and bends light

refractive index

a test for volatile oils that is a measurement that tests how the speed of light is altered when passing through oil

refractive index

the apparatus used in refractive index test:

abbe refractometer

what is the specific refractive index range of lemon oil at 589nm, 20C

1.474 - 1.476

what is the specific refractive index range of lavender oil at 589nm, 20C

1.459 - 1.464

what is the specific refractive index range of orange oil at 589nm, 20C

1.470 - 1.474

what is the specific refractive index range of spearmint oil at 589nm, 20C

1.455-1.460

what is the specific refractive index range of rose oil at 589nm, 20C

1.451 - 1.484

_________ is the method used in assaying alcohol volatile oils

acetalization method

is the method used in assaying aldehyde and ketone volatile oils, in which uses a “Cassia flask”

bisulfite method

is the method used in assaying aldehyde and ketone volatile oils, involving titration

hydroxylamine method

is the method used in assaying phenol volatile oils

KOH method (cassia flask)

the apparatus used in assaying phenol volatile oils

cassia flask

the apparatus used in assaying volatile oil in spirits

babcock bottle

commonly known as Valser's reagent used in assay of alkaloids and amines

mercuric iodide TS

mercuric iodide TS, used in the assay of alkaloids and amines, is commonly known as _______________

valser’s reagent

Mercuric iodide TS forms ________ precipitate with minute traces of many alkaloids when added to their acidified aqueous solutions

white ppt

commonly known as Wagner’s reagent used in assay of alkaloids and amines

iodine TS

iodine TS, used in the assay of alkaloids and amines, is commonly known as _______________

wagner’s reagent

iodine TS yields ___________ precipitates

reddish or reddish brown ppt

commonly known as Mayer’s reagent used in assay of alkaloids and amines

mercuric potassium iodide TS

mercuric potassium iodide TS yields ___________ precipitates

white or slightly yellow ppt