Sodium Citrate

Sodium Citrate (Trisodium Citrate) Chemical Formula

Description

Sodium Citrate is mainly used as an expectorant and a urine alkanizer. It is also used as a pharmaceutical aid and as a food additive in Dairy Industries which cater in Cheese Manufacturing and Beverages. It is also a water treatment chemical and as a Laboratory Reagent.

Applications and Effects

Our product helps in the storage of all the Dairy products especially cheese. It can prevent the dairy products from getting stale for 90 days than compared to other solutions. If it is used in water then can prevent the growth of bacteria for 15 days.

Specifications

TestsSpecifications
DescriptionColorless crystals or white, crystalline powder.
SolubilityFreely soluble in water and very soluble in boiling water. Insoluble in alcohol.
IdentificationA) solution (1 in 20) responds to the test for Sodium and for citrate.
Sodium: A dense precipitate is formed.
Citrate: A light red colour is produced.
AlkalinityNo pink colour is produced by 1 drop of phenolphthalein TS.
WaterBetween 10.0% and 13.0%. Dry it at 180°C for 18 hours.
AlkalinityNot more than 0.2 ml of 0.1M hydrochloric acid or 0.1M sodium Hydroxide is required to change the colour of the indicator.
TartrateNo crystalline precipitate is formed.
Heavy MetalsNot more than 0.001%.
Assay99.0 % to 100.5 % (On Anhydrous Basis)

TestsSpecifications
AppearanceWhite or almost white, crystalline powder or white or almost white, granular crystals, slightly deliquescent in moist air.
SolubilityFreely soluble in water, practically insoluble in ethanol (96 %).
Identification
A. Citrates
B. Sodium
1. Violet colour, turning to violet-blue is produced.
2. A white precipitate soluble in 6M acetic acid.
Identification
B. Sodium
1. A dense, white precipitate is formed.
Appearance of SolutionSolution S is clear and colourless.
Acidity or AlkalinityNot more than 0.2 ml of 0.1M hydrochloric acid or 0.1M sodium Hydroxide is required to change the colour of the indicator.
Readily Carbonisable
Substances
The solution is not more intensely coloured than reference
solution Y2 or GY2.
ChlorideNot more than 50 ppm
OxalateNot more than 300 ppm (calculated as anhydrous oxalic acid).
SulphateNot more than 150 ppm
Heavy MetalsNot more than 10 ppm
Water11.0 per cent to 13.0 per cent, determined on 0.300 g.
Assay99.0 % to 101.0 % (On Anhydrous Basis)

TestsSpecifications
DescriptionWhite, granular crystals or white crystalline powder; odourless; Slightly deliquescent in moist air.
SolubilityFreely soluble in water; practically insoluble in ethanol (95%) and in ether.
Identification
A. Citrates
1. A dense, white precipitate is formed.
2. A yellow, crystalline precipitate is formed.
Identification
B. Sodium
1. A white precipitate soluble in 6M acetic acid.
Appearance of SolutionSolution A is clear and colourless.
Acidity or AlkalinityNot more than 0.5 ml of 0.05M sulphuric acid or 0.1M sodium Hydroxide is required.
ArsenicNot more than 2 ppm
Heavy MetalsNot more than 10 ppm
ChlorideNot more than 100 ppm
OxalateNot more than 300 ppm (calculated as anhydrous oxalic acid).
SulphateNot more than 150 ppm
TartrateNo crystalline precipitate is formed.
Readily Carbonisable
Substances
The solution is not more intensely coloured than reference
Solution YS2 or GYS2.
Water11.0 to 13.0 per cent, determined on 0.3 g.
Assay99.0 % to 101.0 % (On Anhydrous Basis)

TestsSpecifications
DescriptionWhite, granular crystals or white crystalline powder; odourless; Slightly deliquescent in moist air.
SolubilityFreely soluble in water; practically insoluble in ethanol (95%) and in ether.
Identification
A. Citrates
1. A dense, white precipitate is formed.
2. A yellow, crystalline precipitate is formed.
Identification
B. Sodium
1. A white precipitate soluble in 6M acetic acid.
Appearance of SolutionSolution A is clear and colourless.
Acidity or AlkalinityNot more than 0.5 ml of 0.05M sulphuric acid or 0.1M sodium Hydroxide is required.
ArsenicNot more than 2 ppm
Heavy MetalsNot more than 10 ppm
ChlorideNot more than 100 ppm
OxalateNot more than 300 ppm (calculated as anhydrous oxalic acid).
SulphateNot more than 150 ppm
TartrateNo crystalline precipitate is formed.
Readily Carbonisable
Substances
The solution is not more intensely coloured than reference
Solution YS2 or GYS2.
Water11.0 to 13.0 per cent, determined on 0.3 g.
Assay99.0 % to 101.0 % (On Anhydrous Basis)

TestsSpecifications
DescriptionWhite, granular crystals or white crystalline powder; odourless; Slightly deliquescent in moist air.
SolubilityFreely soluble in water; practically insoluble in ethanol (95%) and in ether.
Identification
A. Citrates
1. A dense, white precipitate is formed.
2. A yellow, crystalline precipitate is formed.
Identification
B. Sodium
1. A white precipitate soluble in 6M acetic acid.
Appearance of SolutionSolution A is clear and colourless.
Acidity or AlkalinityNot more than 0.5 ml of 0.05M sulphuric acid or 0.1M sodium Hydroxide is required.
ArsenicNot more than 2 ppm
Heavy MetalsNot more than 10 ppm
ChlorideNot more than 100 ppm
OxalateNot more than 300 ppm (calculated as anhydrous oxalic acid).
SulphateNot more than 150 ppm
TartrateNo crystalline precipitate is formed.
Readily Carbonisable
Substances
The solution is not more intensely coloured than reference
Solution YS2 or GYS2.
Water11.0 to 13.0 per cent, determined on 0.3 g.
Assay99.0 % to 101.0 % (On Anhydrous Basis)