IDENTIFICATION TEST FOR RESINS

Name the 3 types of tests used to identify resins

physical test
chemical test
specific chemical test

what type of ID test for resins pertains to the following:

solubility, taste, odor and examination of powder under the microscope

physical test

what type of ID test for resins pertains to the following:

Acid value, Saponification value, Iodine value

chemical test

what type of ID test for resins pertains to the following:

test for Cinnamic acid, Benzoic acid in Benzoin, Tolu balsam and Peru Balsam

specific chemical test

what is the reagent used in the HCl test?

HCl

what is the positive result in the HCl test?

formation of pink color

what are the compounds that would illicit a positive result for HCl test?

presence of resin

what is the reagent used in the FeCl3 test?

FeCl3

what is the positive result in the FeCl3 test?

greenish blue color

what are the compounds that would illicit a positive result for FeCl3 test?

presence of renin

an identification test for resins in which is the specific test for asafoetida

combined umbelliferone

what is the positive result in the combined umbelliferone test, with:

HCl + conc. NH4OH as the reagent?

blue fluorescence

what is the specific reagent used in the combined umbelliferone test when the positive result is= BLUE FLUORESCENCE

HCl + conc. NH4OH

what is the positive result in the combined umbelliferone test, with:

nitric acid as the reagent?

green color

what is the specific reagent used in the combined umbelliferone test when the positive result is= GREEN COLOR

nitric acid

what is the positive result in the combined umbelliferone test, with:

sulfuric acid as the reagent?

red color

what is the specific reagent used in the combined umbelliferone test when the positive result is= RED COLOR

sulfuric acid

what is the positive result in the combined umbelliferone test, when sample is washed with water?

violet color

what is the specific reagent used in the combined umbelliferone test when the positive result is= VIOLET COLOR

water

what compounds would illicit a positive result for combined umbelliferone test?

umbelliferone

what test should be used for the identification of umbelliferone?

combined umbelliferone test

what is the reagent used in the copper acetate test?

petroleum ether

what is the positive result for the copper acetate test?

emerald green

what compounds would illicit a positive result for copper acetate test?

abietic acid

what test should be used for the identification of abietic acid?

copper acetate test

what is the reagent used for the test for aspidium?

diluted alcohol soln + FeCl3

what type of resin is aspidium?

oleoresin

what is the positive result for the test for aspidium?

green color

what compounds would illicit a positive result for test for aspidium?

filmarone
flavaspidinol
flavaspidic acid

what type of resin is myrrh?

oleo-gum-resin

what is the positive result for the test for myrrh with:

ether + HNO3 as the reagent?

purplish violet

what is the specific reagent used in the test for myrrh when the positive result is= PURPLISH VIOLET

Ether + HNO3

what is the positive result for the test for myrrh with:

Br2 vapor as the reagent?

violet

what is the specific reagent used in the test for myrrh when the positive result is= VIOLET

Br2 vapor

what compounds would illicit a positive result for test for myrrh?

commiphoric acid

what type of resin is benzoin?

balsam

what is the specific reagent used in the test for sumatra benzoin

KMnO4

what is the positive result for the test for sumatra benzoin with:

KMnO4 as the reagent?

faint odor of benzaldehyde

what is the specific reagent used in the test for sumatra benzoin when the positive result is= FAINT ODOR OF BENZALDEHYDE

KMnO4

what is the positive result for the test for sumatra benzoin with:

petroleum ether solution + H2SO4 as the reagent?

reddish-brown color

what is the specific reagent used in the test for sumatra benzoin when the positive result is= REDDISH-BROWN COLOR

petroleum ether solution + H2SO4

what compounds would illicit a positive result for test for sumatra benzoin?

cinnamic acid

what is the specific reagent used in the test for siam benzoin

alc ext + alcoholic FeCl3

what is the positive result for the test for siam benzoin with:

alc ext + alcoholic FeCl3 as the reagent?

green color

what is the specific reagent used in the test for siam benzoin when the positive result is= GREEN COLOR

alc ext + alcoholic FeCl3

what is the positive result for the test for siam benzoin with:

petroleum ether solution + H2SO4 as the reagent?

purple-red color

what is the specific reagent used in the test for siam benzoin when the positive result is= PURPLE-RED COLOR

petroleum ether solution + H2SO4

what compounds would illicit a positive result for test for siam benzoin?

coniferyl-benzoate tannins

what is the positive result for the test for balsam for tolu with:

FeCl3 as the reagent?

green

what is the specific reagent used in the test for balsam of tolu when the positive result is= GREEN COLOR

FeCl3

what is the positive result for the test for balsam for tolu with:

KMnO4 as the reagent?

odor of benzaldehyde

what is the specific reagent used in the test for balsam of tolu when the positive result is= ODOR OF BENZALDEHYDE

KMnO4

what compounds would illicit a positive result for test for balsam of tolu?

cinnamic acid + benzoic acids (resinotannols)
cinnamic acid