DOI Page / Citation link:
https://doi.org/10.11588/diglit.18732#0073
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cefs from fimilar materials, has given the name of
lacques to feveral not otherwife related to it.
LAQUE, is drawn from feveral flowers; the yellow
from flowers of juniper, red from the poppy, blue
from the iris or violet.
The tinctures of thefe flowers are extracted bydigeft-
ing them feveral times in aqua vitas, or by boiling them
over a (love fire in a lixivium of pot-afhes and alum.
An artificial lacca, is made of Brazil wood,
boiled in a lixivium of the branches of the vine, adding a
little cochineal, turmeric, calcined alum, and arfenic, in-
corporated with the bones of the cuttle-fifh pulverized5
and made up, into little cakes, and dried. \
To render it very red, add the juice of lemon ; to make
it brown, add oil of tartar.
Dove-coloured, or columbine lacque, is made
with Brazil of Fernambuc, fteeped in diflilled vinegar
for the fpace of a month, and mixed with alum incorpo-
rated in cuttle-fifn bone.
YELLOW LAKE, the procefs for making is this;
take a pound of turmeric-root in fine powder, three pints
of water, and an ounce of fait of tartar ; put them into
a glazed earthen veffel, and boil them over a clear gentle
fire, till the water appears highly impregnated. Filtre
this liquor, and gradually add a flrong folution of roch-
alum in water, till the yellow matter is precipitated';
this filtered again will leave the yellow matter behind.
It is warned repeatedly with frefh water, till pure. In
this manner may laque be procured from any of the ting-
ing fubftances that are of a flrong texture, as madder,
logwood, <5:c. but it fails in the more tender fpecies, as
cefs from fimilar materials, has given the name of
lacques to feveral not otherwife related to it.
LAQUE, is drawn from feveral flowers; the yellow
from flowers of juniper, red from the poppy, blue
from the iris or violet.
The tinctures of thefe flowers are extracted bydigeft-
ing them feveral times in aqua vitas, or by boiling them
over a (love fire in a lixivium of pot-afhes and alum.
An artificial lacca, is made of Brazil wood,
boiled in a lixivium of the branches of the vine, adding a
little cochineal, turmeric, calcined alum, and arfenic, in-
corporated with the bones of the cuttle-fifh pulverized5
and made up, into little cakes, and dried. \
To render it very red, add the juice of lemon ; to make
it brown, add oil of tartar.
Dove-coloured, or columbine lacque, is made
with Brazil of Fernambuc, fteeped in diflilled vinegar
for the fpace of a month, and mixed with alum incorpo-
rated in cuttle-fifn bone.
YELLOW LAKE, the procefs for making is this;
take a pound of turmeric-root in fine powder, three pints
of water, and an ounce of fait of tartar ; put them into
a glazed earthen veffel, and boil them over a clear gentle
fire, till the water appears highly impregnated. Filtre
this liquor, and gradually add a flrong folution of roch-
alum in water, till the yellow matter is precipitated';
this filtered again will leave the yellow matter behind.
It is warned repeatedly with frefh water, till pure. In
this manner may laque be procured from any of the ting-
ing fubftances that are of a flrong texture, as madder,
logwood, <5:c. but it fails in the more tender fpecies, as