Citric Acid anhydrous/monohydrate CAS No.: 77-92-9

Characters

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White Crystalline Powders,Colorless Crystals or Granules

Identification

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Pass Test

Color & Clarity of Solution

-

Pass Test

Pass Test

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Pass Test

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Assay

%

99.5-100.5

Water

%

≤1.0

≤1.0

≤0.5

≤0.2

≤0.5

Light Transmittance

%

/

/

/

/

≥96.0

Calcium

ppm

/

/

/

≤75

≤200

Iron

ppm

/

/

/

≤5

≤5

Arsenic

ppm

/

/

/

≤1

≤1

Mercury

ppm

/

/

/

≤1

/

Heavy Metals

ppm

≤10

≤10

/

≤5

/

Oxalate

ppm

≤360

≤360

Pass Test

≤100

≤100

Chloride

ppm

/

/

/

/

≤50

Sulphate

ppm

≤150

≤150

/

≤150

≤100

Readily Carbonisable Substances

-

Not Darker than Standard

Not Darker than Standard

Pass Test

Pass Test

≤1.0

Sulphated Ash

%

≤0.1

≤0.1

≤0.05

≤0.05

≤0.05

Volatile Organic Impurities

-

/

/

/

Pass Test

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Tridodecylamine

mg/kg

/

/

≤0.1

/

/

Lead

ppm

/

/

≤0.5

≤0.5

≤0.5

Aluminum

ppm

≤0.2

≤0.2

/

/

/

Bacterial Endotoxins

IU/mg

<0.5

Pass Test

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Water Insoluble Substances

-

/

/

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Filtration time not more than 1 min; Filter membrane basically doesn't change color; Visual mottled particles not more than 3.