Krishna Chemicals, Vadodara

TESTS

SPECIFICATION

Appearance

White crystalline Powder

Solubility (10%in water)

Clear and colourless

pH 5% in water

7.0 TO 9.0

Partical size  

1) >850 MIC

2) <850>150 MIC

3)<150 MIC

NIL

94%

6%

Moisture

Max 1.0%

Water insoluble matter

0.025%

Calcium (Ca)

0.026%

Magnesium (Mg)

0.02%

Sulphate (SO4)

0.095%

Iron(Fe)

<10 PPM

Assay

99.00%

TESTS

         SPECIFICATION

Description

 Hygroscopic Crystal

Identification

 To Pass Test

Solubility( 10%Soln)

 Clear And Colorless

Sulphate(SO4)

 <0.01%

Iron (Fe)

 <0.0010%

Heavy Metals(pb)

 <0.005%

Magnesium(Mg)

 <0.05%

Assay

 >97.0%

TEST

SPECIFICATION

Description

White or colorless crystals or a while crystalline powder

Solubility

Free soluble in water,slightly more soluble in boiling water practically insoluble in ethanol

Identification

(A)It gives the reaction of chlorides

(B)Gives the reaction of salts

Appearance of solution

Solution is clear and colorless

Acidity or alkalinity

NMT 0.5mL is required 0.01M NaOH or 0.01M HCL

Arsenic

NMT 1PPM

Barium

No Turbidity produced within 2hr

Heavy Metals

NMT 5PPM

Bromide

NMT 100PPM

Ferro cyanide

No Blue color is produced within 10minutes

Calcium & Magnesium

NMT 50PPM

Sulphates

NMT 300PPM

Iron

NMT 20PPM

Iodide

The substance shows no blue color after 5 minutes

Loss on drying

NMT 1.0%w/w

ASSAY

99.0 % to 100.5%ODB

TEST

SPECIFICATION

Description

 White Solid

Solubility

Soluble in water

pH of a 5% Solution

5.0 to 8.0

Bromide & Iodide (as Br)

Max. 0.006%

Phosphate (PO4)

Max. 0.005%

Sulphate (SO4)

Max. 0.02%

Arsenic (As)

Max. 0.0001%

Barium(Ba)

Max. 0.001%

Calcium (Ca)

Max. 0.002%

Iron (Fe)

Max. 0.002%

Heavy Metals (as Pb)

Max. 0.0005%

Magnesium (Mg)

Max. 0.002%

Assay

NLT 99.5%

Loss on drying (130°C)

Max. 1.0%

TEST

SPECIFICATION

Appearance

White Hygroscopic crystalline

Solubility(10% aq.soln.)

 Clear & colourless

Assay

Min.99%

pH(5% aq.soln.)

5.0  - 6.5

Sulphate (SO4)

MAX. 0.002%

Iron (Fe)

Max. 0.0002%

Heavy Metals(Pb)

Max. 0.0005%

Phosphate (PO4)

Max. 0.0005%

Copper(Cu)

Max. 0.0002%

Nitrogen Compounds(N)

Max. 0.002%

Manganese(Mn)

Max. 0.0005%

Potassium (K)

Max. 0.001%

Sodium (Na)

Max. 0.001%

TESTS

SPECIFICATION

Description

 Colorless crystal Hygroscopic

Identification

 To Pass Test

Solubility (10% Soln)

Clear and Colorless

Sulphate (SO4)

 < 0.01%

Iron (Fe)

 <0.0015%

Calcium(Ca)

 < 0.05%

Heavy Metals(pb)

 <0.005%

Assay

Min 98.0%

TESTS

SPECIFICATION

Appearances

White Powder

Zinc Chloride

98.40%

Iron

4ppm

Moisture

<2%

pH of 50% soln.

3-4

Lead

0.001%

Copper

0.001%

Solubility-soluble in water

Alcohol & Glycerol

Very soluble in water,freely

Soluble in alcohol & Glycerol

Dissolve 1.0gm IN 20ml of water, add 20ml ALCOHOL  and mix to 10ml of the mixture add 0.3ml of in HCL Acid.

Solution Becomes perfectly

Clear & No precipitate

Found in the solution.

TESTS

SPECIFICATION

FINDING

Appearances

White Powder

White Crystal

Zinc Chloride

98.40%

Complies

Iron

4ppm

3ppm

Moisture

<2%

1.5%

pH of 50% soln.

3-4

3.58

Lead

0.001%

0.0006%

Copper

0.001%

0.0005%

Solubility-soluble in water

Alcohol & Glycerol

Very soluble in water,freely

Soluble in alcohol & Glycerol

Complies

Dissolve 1.0gm IN 20ml of water, add 20mlALCOHOL and mix to 10ml of the mixture add0.3ml of in

HCL Acid.

Solution Becomesperfectly Clear & No precipitate Found in thesolution.

Complies