Gallic Acid (Electronic grade)

Item

specifications

appearance

light white powder

White powder

assay

>=99%

Purity

loss on drying

<=10%

Drying loss

Residue on ignition

<=0.1%

Ignition residue

Acid(mgKOH/g)

300-320

Acidity

turbidity(NTU)

<=10

Turbidity

Chloride

<=0.01%

Chloride content

Sulphate

<=0.001%

Sulfate content

Metal

Al

<=20

ppb

Au

<=30

ppb

Ag

<=40

ppb

B

<=50

ppb

Ba

<=20

ppb

Cd

<=20

ppb

Ca

<=100

ppb

Cr

<=20

ppb

Co

<=20

ppb

Cu

<=20

ppb

Fe

<=100

ppb

Ga

<=20

ppb

K

<=30

ppb

Li

<=20

ppb

Mg

<=20

ppb

Mn

<=20

ppb

Ni

<=20

ppb

Na

<=50

ppb

Pb

<=20

ppb

Sr

<=20

ppb

Sn

<=20

ppb

Sb

<=20

ppb

Ta

<=20

ppb

Ti

<=30

ppb

Zn

<=20

ppb