Forwarded from MO (⅃ᓄؤᓄ)
Most of the aromatic substances in the preparation of aromatic waters have very _____ solubility in water
Anonymous Quiz
80%
low
20%
high
Forwarded from MO (⅃ᓄؤᓄ)
water may be saturated, its concentration of aromatic material is still rather _____
Anonymous Quiz
77%
small
23%
large
Forwarded from MO (⅃ᓄؤᓄ)
The official methods of preparation of aromatic water are:
Forwarded from MO (⅃ᓄؤᓄ)
To prepare aromatic water the concentrates are diluted with water _____ use
Anonymous Quiz
81%
before
19%
after
Forwarded from MO (⅃ᓄؤᓄ)
Most of the aromatic waters are prepared by ——.
Anonymous Quiz
87%
distillation
11%
solution
2%
Alternate solution
Forwarded from MO (⅃ᓄؤᓄ)
The volatile substance is agitated with purified water for a period of ____ minutes.
Anonymous Quiz
7%
20
78%
15
9%
10
6%
5
Forwarded from MO (⅃ᓄؤᓄ)
_____to make up to volume through the filter, since a saturated solution is sought.
Anonymous Quiz
69%
Not necessary
31%
necessary
Forwarded from MO (⅃ᓄؤᓄ)
In spite of repeated filtration it is difficult to obtain a brilliantly clear preparationowing to formation of extremely fine particles.
Anonymous Quiz
57%
Solution
28%
Alternate solution
15%
Distillation
Forwarded from MO (⅃ᓄؤᓄ)
Forwarded from MO (⅃ᓄؤᓄ)
The ___ volatility of chloroform creates equilibrium of loss and restoration of strength by evaporation
Anonymous Quiz
85%
high
15%
low
Forwarded from MO (⅃ᓄؤᓄ)
Alternate solution
The volatile material is mixed with
The volatile material is mixed with
Anonymous Quiz
13%
15g purified talc method
11%
sufficient quantity of purified siliceous earth (silica)
0%
pulped filter paper.
76%
All of the above
Forwarded from MO (⅃ᓄؤᓄ)
The talc or other inert material functions as both a !?
Forwarded from MO (⅃ᓄؤᓄ)
Elutriation with water is used to remove soluble material and finally divided particles
Anonymous Quiz
87%
T
13%
F
Forwarded from MO (⅃ᓄؤᓄ)
Peppermint oil is a complex mixture of
Anonymous Quiz
8%
The hydrocarbons fraction (usually terpenes)
5%
alcohols
1%
ethers
0%
aldehydes
0%
ketones
86%
All of the above
Forwarded from MO (⅃ᓄؤᓄ)
The terpenes are _____ water soluble which are mostly removed by filtration (clarification process)
Anonymous Quiz
75%
the least
25%
the most
Forwarded from MO (⅃ᓄؤᓄ)
oils (aroma carriers) are prepared by fractional distillation and or extraction, are stronger in aroma and more soluble and more stable than the natural essential oil (Terpene oils) , but are of higher expense
Anonymous Quiz
24%
terpene
76%
terpeneless
👍1
Forwarded from MO (⅃ᓄؤᓄ)
Concentrated aromatic waters are prepared to obviate the difficulties involved in the clarification of aromatic water
Anonymous Quiz
93%
T
8%
F
Forwarded from MO (⅃ᓄؤᓄ)
An alcoholic solution (50-55% alcohol) of the essential oil is mixed with water and talc
Anonymous Quiz
80%
T
20%
F
Forwarded from MO (⅃ᓄؤᓄ)
The diluted aromatic water is prepared by diluting 2ml of the concentrated aromatic solution to 100ml with water. The resultant contains less than ____ of alcohol.
Anonymous Quiz
7%
1%
82%
1.5%
6%
2%
6%
2.5%