-
excess of
calcium atoms needed to form fluorite.: 28 Blue John can be
decolourised by
heating it in an oven for a few hours, a
phenomenon apparently caused...
- ether-alcohol, but not in pure ether, is
precipitated by lead-acetate,
decolourised by
reducing agents, and
recovers its red
colour on
exposure to the air...
- H2NC6H4SO3H. If
bromine water is
added to aniline, the
bromine water is
decolourised and a
white precipitate of 2,4,6-tribromoaniline is formed. To generate...
- leather, foods, polymers, photography, and many others,
often as a
decolourising agent. It is even used
domestically as a
decoloring agent for white...
- example, to make
sodium lamps.
Selenium compounds can be used both as
decolourising agents and to add a red
colour to gl****.
Decorative gl****ware made of...
-
gases burn with a
bluish flame and turn lime
water milky.
Oxalates also
decolourise KMnO4 and give a
white precipitate with CaCl2. The 3rd
group of anions...
- ZN
staining Stain with Auramine-Phenol for 20 mins
Rinse with
water Decolourise in acid
alcohol Rinse with
water Counterstain with 0.1% pot****ium permanganate...
-
occasionally (in the same specimen)
decolourised;
hypothecium darkening to
brownish or
occasionally decolourised or carbonaceous;
apothecia occasionally...
- at an
earlier stage. In
Bohemia at the end of the 16th
century the
decolourising powers of
manganese were used to
produce a
clear gl****
suitable for...
-
solution and then, by a
process of
aseptic transfer, the
iodine was
decolourised by
thiosulphate which, in turn, by
further aseptic transfer, was replaced...
