the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
B. the manufacture of dyes
mercaptans
propylene
carbon disulphide
phosgene
Chadwick
Madam Curie
Becquerel
Aston
a deliquescent substance
an efflorescent substance
a hygroscopic substance
a dehydrating substance
Nitrogen
Phosphorus
Potassium
Mercury
iodine in potassium iodide
iodine in alcohol
iodine in water
iodine in carbon disulphide
oxidise ammonia to nitrates
convert nitrogen into ammonia
oxidise ammonia to free nitrogen
oxidise ammonia to oxides of nitrogen
nickel
tin
iron
chromium
coal gas
producer gas
water gas
gobar gas
sulphanilamide
quinine
methicillin
novocaine
sodium bicarbonate
sodium carbonate
carbonic acid
sodium hydroxide
Goodyear
Wohler
Baeyer
Perkin
potassium
sodium
red phosphorus
white phosphorus
hydrochloric acid
ammonia
cane sugar
common salt
tuberculosis
cancer
typhoid
malaria
lead chloride
mercurous chloride
mercuric chloride
calcium sulphate
It is spontaneous disintegration of atoms
It is induced by bombardment with projectiles
It is transmutation of atoms with projectiles
It is dependent on temperature
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
copper sulphate and water
copper sulphate, lime and water
thio-urea and lime
copper sulphate and thio-urea
an oxidation process
a reduction process
a physical change
an electro-chemical process
decomposition of petrol
fermentation of animal and plant waste
destructive distillation of coal
electrolysis of water
sulphur
phosphorus
iodine
bromine
Moissan
Davy
Faraday
Marie Curie
Limestone
FeO
SiO2
MgO
gypsum
urea
potassium nitrate
ammonium phosphate
Aluminium
Copper
Zinc
Iron
sodium chloride in water
iodine in alcohol
sulphur in carbon disulphide
Potassium iodide in water
nitric oxide
nitrogen peroxide
nitrogen pentoxide
nitrous oxide
glucose
fructose
sucrose
maltose
CaO
Ca(OH)2
NaOH
Na2CO3
nitrates
nitrites
hyponitrates
nitrides