Mar 21, 2018

The sample is identified by comparing the observed flame color against known values from a table or chart.

The sample is identified by comparing the observed flame color against known values from a table or chart.
Red
Carmine to Magenta: Lithium compounds.

Masked by barium or sodium.

Scarlet or Crimson: Strontium compounds. Masked by barium.
Red: Rubidium (unfiltered flame)
Yellow-Red: Calcium compounds. Masked by barium.

Yellow

Gold: Iron
Intense Yellow: Sodium compounds, even in trace amounts. A yellow flame is not indicative of sodium unless it persists and is not intensified by an addition of 1% NaCl to the dry compound.

White
Bright White: Magnesium
White-Green: Zinc

Green

Emerald: Copper compounds, other than halides. Thallium.
Bright Green: Boron
Blue-Green: Phosphates, when moistened with H2SO4 or B2O3.
Faint Green: Antimony and NH4 compounds.
Yellow-Green: Barium, manganese(II), molybdenum.

Blue
Azure: Lead, selenium, bismuth, cesium, copper(I), CuCl2 and other copper compounds moistened with hydrochloric acid, indium, lead.

Light Blue: Arsenic and some of its compounds.
Greenish Blue: CuBr2, antimony

Purple

Violet: Potassium compounds other than borates, phosphates, and silicates. Masked by sodium or lithium.
Lilac to Purple-Red: Potassium, rubidium, and/or cesium in the presence of sodium when viewed through a blue glass.

Flame Test Colors

SymbolElementColor
AsArsenicBlue
BBoronBright green
BaBariumPale/Yellowish Green
CaCalciumOrange to red
CsCesiumBlue
Cu(ICopper(I)Blue
Cu(II)Copper(II) non-halideGreen
Cu(II)Copper(II) halideBlue-green
FeIronGold
InIndiumBlue
KPotassiumLilac to red
LiLithiumMagenta to carmine
MgMagnesiumBright white
Mn(II)Manganese(II)Yellowish green
MoMolybdenumYellowish green
NaSodiumIntense yellow
PPhosphorusPale bluish green
PbLeadBlue
RbRubidiumRed to purple-red
SbAntimonyPale green
SeSeleniumAzure blue
SrStrontiumCrimson
TeTelluriumPale green
TlThalliumPure green
ZnZincBluish green to whitish green

The sample is identified by comparing the observed flame color against known values from a table or chart. Rating: 4.5 Diposkan Oleh: Mehul Suthar

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