How to make copper sulfate

This is an easy way to produce copper sulfate either at home, at school or in a laboratory.

Please note: As you will be working with hot water it is important that children are supervised at all times.

Ingredients needed to make your own copper sulfate crystals:

  • Copper carbonate or black copper oxide
  • Sulfuric acid
  • a clean beaker
  • A conical flask
  • A glass rod
  • A tripod
  • an evaporating dish
  • Gauze
  • Filter paper
  • A funnel
  • goggles
  • Gloves

Instructions on how to make copper sulfate:

  • Using gloves and goggles add sulfuric acid to copper carbonate or copper oxide until no more dissolves.
  • You will know when you have added enough as no more gas will be produced.
  • Filter the solution through the filter paper in a funnel onto an evaporating dish.
  • Heat the solution gently over a bunsen burner until most of the solution has evaporated and allow to cool.
  • crystals of copper sulfate will start to form on the dish.

Notes:

Always wear appropriate personal protection equipment when handling sulfuric acid as it is very corrosive.

Where to buy quality Copper Sulfate

Where to buy copper carbonate

Where to buy copper oxide black

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How to make copper sulphate

This is an easy way to produce copper sulphate either at home, at school or in a laboratory.

Please note: As you will be working with hot water it is important that children are supervised at all times.

Ingredients needed to make your own copper sulphate crystals:

  • Copper carbonate or black copper oxide
  • Sulphuric acid
  • a clean beaker
  • A conical flask
  • A glass rod
  • A tripod
  • an evaporating dish
  • Gauze
  • Filter paper
  • A funnel
  • goggles
  • Gloves

Instructions on how to make copper sulphate:

  • Using gloves and goggles add sulphuric acid to copper carbonate or copper oxide until no more dissolves.
  • You will know when you have added enough as no more gas will be produced.
  • Filter the solution through the filter paper in a funnel onto an evaporating dish.
  • Heat the solution gently over a bunsen burner until most of the solution has evaporated and allow to cool.
  • crystals of copper sulphate will start to form on the dish.

Notes:

Always wear appropriate personal protection equipment when handling sulphuric acid as it is very corrosive.

Where to buy quality Copper Sulphate

Where to buy copper carbonate

Where to buy copper oxide black

What is Potassium sodium 2,3-dihydroxysuccinate and what is it used for ?

E337 Potassium sodium tartrate

What is Potassium sodium 2,3-dihydroxysuccinate

Potassium sodium 2,3-dihydroxysuccinate is Potassium sodium tartrate tetrahydrate, commonly called Rochelle salt is an odourless, colourless to white crystalline solid with a salty taste. It is the double salt of tartaric acid. It is soluble in water but insoluble in alcohols. Potassium Sodium Tartrate is prepared from potassium bitartrate and sodium carbonate. Commercially it is produced as a by-product of the wine industry.

Properties and specification of Potassium sodium 2,3-dihydroxysuccinate

  • Synonyms: Potassium Sodium Tartrate; E337; Seignette’s salt; Rochelle salt; Potassium sodium tartrate tetrahydrate; Potassium sodium 2,3-dihydroxysuccinate; L(+)-Tartaric acid potassium Sodium salt; butanedioic acid, 2,3-dihydroxy-, potassium sodium salt
  • CAS number: 304–59–6
  • EINECS: 206–156–8
  • Purity: >99%
  • Appearance: colourless / white crystalline solid
  • Formula:KNaC4H4O6.4H2O

    potassium sodium tartrate structure

  • Molecular weight: 282.1
  • pH: 7–8.5
  • Density: 1.79
  • Specific gravity: 2.75 g/cm3
  • Solubility in water: soluble 630g/L @20C
  • Melting point: 75C
  • Boiling point: 220C
  • Refractive index: 1.59
  • Oil Absorption: 37g/100g

The chemical composition of Potassium sodium tartrate tetrahydrate consists of Water 24.53%, Potassium 13.85%, Sodium 8.15% and Tartaric acid 53.17%. When heated it melts at 70–80C; at 100C it loses 3 water molecules and eventually becomes anhydrous at 130–140C; at 220C it begins to decompose. Potassium Sodium Tartrate has the linear formula KOCOCH(OH)CH(OH)C­OONa.4H2O

Where to Buy Potassium Sodium Tartrate GRG

How to make Potassium sodium 2,3-dihydroxysuccinate

The salt is prepared by adding 0.5M sodium carbonate to a hot solution of 1M potassium bitartrate (cream of Tartar). The solution is mixed thoroughly and then filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystals.

General Uses for Potassium sodium 2,3-dihydroxysuccinate

As additive in food industry ( E337 ) where it acts as sequestrant, emulsifier, stabilizer, buffer and antioxidant in cheese products, margarine, jellies, jams, minced meat, and sausage casings.

In pharmacology it is used as saline cathartics (usual adult dose: 5–10g). potassium bitartrate is administered rectally as a suppository with sodium bicarbonate to produce carbon dioxide, which promotes defecation by distending the rectal ampulla; administered for relief of constipation, and evacuation of the colon before surgical or diagnostic procedures or childbirth. It is not to be used on persons with heart problems or those on low sodium diets.
Potassium Sodium Tartrate is also used for the removal of toxic materials in some cases of poisoning.

Other applications include the preparation of piezoelectric crystals used in electrical appliances; as a laxative; in the manufacture of mirrors; in the plating industry; as a laboratory reagent; in the preparation of Fehlings solution for the detection of aldehydes; and for delaying the quick-setting of gypsum .

Health & Safety

This substance is not classified as dangerous according to Directive 67/548/EEC.

For full details see MSDS for Potassium sodium 2,3-dihydroxysuccinate

.

Where to Buy Potassium sodium 2,3-dihydroxysuccinate GRG

Other Tartrate salts:

 DiSodium Tartrate Dihydrate GRG

Sodium hydrogen tartrate monohydrate – Sodium Bitartrate

Potassium Tartrate – Sodium Bitartrate

What is Seignette’s salt and what is it used for ?

Seignette’s salt

What is Seignette’s salt

Seignette’s salt is Potassium sodium tartrate tetrahydrate, commonly called Rochelle salt is an odourless, colourless to white crystalline solid with a salty taste. It is the double salt of tartaric acid. It is soluble in water but insoluble in alcohols. Potassium Sodium Tartrate is prepared from potassium bitartrate and sodium carbonate. Commercially it is produced as a by-product of the wine industry.

Properties and specification of Seignette’s salt

  • Synonyms: Potassium Sodium Tartrate; E337; Seignette’s salt; Rochelle salt; Potassium sodium tartrate tetrahydrate; Potassium sodium 2,3-dihydroxysuccinate; L(+)-Tartaric acid potassium Sodium salt; butanedioic acid, 2,3-dihydroxy-, potassium sodium salt
  • CAS number: 304–59–6
  • EINECS: 206–156–8
  • Purity: >99%
  • Appearance: colourless / white crystalline solid
  • Formula:KNaC4H4O6.4H2O

    potassium sodium tartrate structure

  • Molecular weight: 282.1
  • pH: 7–8.5
  • Density: 1.79
  • Specific gravity: 2.75 g/cm3
  • Solubility in water: soluble 630g/L @20C
  • Melting point: 75C
  • Boiling point: 220C
  • Refractive index: 1.59
  • Oil Absorption: 37g/100g

The chemical composition of Potassium sodium tartrate tetrahydrate consists of Water 24.53%, Potassium 13.85%, Sodium 8.15% and Tartaric acid 53.17%. When heated it melts at 70–80C; at 100C it loses 3 water molecules and eventually becomes anhydrous at 130–140C; at 220C it begins to decompose. Potassium Sodium Tartrate has the linear formula KOCOCH(OH)CH(OH)C­OONa.4H2O

Where to Buy Seignette’s salt GRG

How to make Seignette’s salt

The salt is prepared by adding 0.5M sodium carbonate to a hot solution of 1M potassium bitartrate (cream of Tartar). The solution is mixed thoroughly and then filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystals.

Uses for Seignette’s salt

As additive in food industry ( E337 ) where it acts as sequestrant, emulsifier, stabilizer, buffer and antioxidant in cheese products, margarine, jellies, jams, minced meat, and sausage casings.

In pharmacology it is used as saline cathartics (usual adult dose: 5–10g). potassium bitartrate is administered rectally as a suppository with sodium bicarbonate to produce carbon dioxide, which promotes defecation by distending the rectal ampulla; administered for relief of constipation, and evacuation of the colon before surgical or diagnostic procedures or childbirth. It is not to be used on persons with heart problems or those on low sodium diets.
Potassium Sodium Tartrate is also used for the removal of toxic materials in some cases of poisoning.

Other applications include the preparation of piezoelectric crystals used in electrical appliances; as a laxative; in the manufacture of mirrors; in the plating industry; as a laboratory reagent; in the preparation of Fehlings solution for the detection of aldehydes; and for delaying the quick-setting of gypsum .

Health & Safety

This substance is not classified as dangerous according to Directive 67/548/EEC.

For full details see MSDS for Seignette’s salt Potassium Sodium Tartrate

.

Where to Buy Seignette’s salt Potassium Sodium Tartrate GRG

Other Tartrate salts:

DiSodium Tartrate Dihydrate

Sodium hydrogen tartrate monohydrate – Sodium Bitartrate

Potassium Tartrate – Sodium Bitartrate

What is Butanedioic acid, 2,3-dihydroxy potassium sodium salt and what is it used for ?

Butanedioic acid 2 3 dihydroxy potassium sodium salt

What is Butanedioic acid, 2,3-dihydroxy-, potassium sodium salt

Butanedioic acid, 2,3-dihydroxy-, potassium sodium salt is Potassium sodium tartrate tetrahydrate, commonly called Rochelle salt is an odourless, colourless to white crystalline solid with a salty taste. It is the double salt of tartaric acid. It is soluble in water but insoluble in alcohols. Potassium Sodium Tartrate is prepared from potassium bitartrate and sodium carbonate. Commercially it is produced as a by-product of the wine industry.

Properties and specification of butanedioic acid, 2,3-dihydroxy-, potassium sodium salt

  • Synonyms: Potassium Sodium Tartrate; E337; Seignette’s salt; Rochelle salt; Potassium sodium tartrate tetrahydrate; Potassium sodium 2,3-dihydroxysuccinate; L(+)-Tartaric acid potassium Sodium salt; Butanedioic acid, 2,3-dihydroxy-, potassium sodium salt
  • CAS number: 304–59–6
  • EINECS: 206–156–8
  • Purity: >99%
  • Appearance: colourless / white crystalline solid
  • Formula:KNaC4H4O6.4H2O

    potassium sodium tartrate structure

  • Molecular weight: 282.1
  • pH: 7–8.5
  • Density: 1.79
  • Specific gravity: 2.75 g/cm3
  • Solubility in water: soluble 630g/L @20C
  • Melting point: 75C
  • Boiling point: 220C
  • Refractive index: 1.59
  • Oil Absorption: 37g/100g

The chemical composition of Potassium sodium tartrate tetrahydrate consists of Water 24.53%, Potassium 13.85%, Sodium 8.15% and Tartaric acid 53.17%. When heated it melts at 70–80C; at 100C it loses 3 water molecules and eventually becomes anhydrous at 130–140C; at 220C it begins to decompose. Potassium Sodium Tartrate has the linear formula KOCOCH(OH)CH(OH)C­OONa.4H2O

Where to Buy Potassium Sodium Tartrate GRG

How to make Butanedioic acid, 2,3-dihydroxy-, potassium sodium salt crystals

The salt is prepared by adding 0.5M sodium carbonate to a hot solution of 1M potassium bitartrate (cream of Tartar). The solution is mixed thoroughly and then filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystals.

Uses for Butanedioic acid, 2,3-dihydroxy-, potassium sodium salt

As additive in food industry ( E337 ) where it acts as sequestrant, emulsifier, stabilizer, buffer and antioxidant in cheese products, margarine, jellies, jams, minced meat, and sausage casings.

In pharmacology it is used as saline cathartics (usual adult dose: 5–10g). potassium bitartrate is administered rectally as a suppository with sodium bicarbonate to produce carbon dioxide, which promotes defecation by distending the rectal ampulla; administered for relief of constipation, and evacuation of the colon before surgical or diagnostic procedures or childbirth. It is not to be used on persons with heart problems or those on low sodium diets.
Potassium Sodium Tartrate is also used for the removal of toxic materials in some cases of poisoning.

Other applications include the preparation of piezoelectric crystals used in electrical appliances; as a laxative; in the manufacture of mirrors; in the plating industry; as a laboratory reagent; in the preparation of Fehlings solution for the detection of aldehydes; and for delaying the quick-setting of gypsum .

Health & Safety

This substance is not classified as dangerous according to Directive 67/548/EEC.

For full details see MSDS for Potassium Sodium Tartrate

.

Where to Buy Potassium Sodium Tartrate GRG

Other Tartrate salts:

DiSodium Tartrate Dihydrate

Sodium hydrogen tartrate monohydrate – Sodium Bitartrate

Potassium Tartrate – Sodium Bitartrate

What is Rochelle salt and what is it used for ?

Rochelle salt

What is Rochelle salt

Rochelle salt or Potassium sodium tartrate tetrahydrate is an odourless, colourless to white crystalline solid with a salty taste. It is the double salt of tartaric acid. It is soluble in water but insoluble in alcohols. Potassium Sodium Tartrate is prepared from potassium bitartrate and sodium carbonate. Commercially it is produced as a by-product of the wine industry.

Properties and specification of Rochelle salt

  • Synonyms: Potassium Sodium Tartrate; E337; Seignette’s salt; Rochelle salt; Potassium sodium tartrate tetrahydrate; Potassium sodium 2,3-dihydroxysuccinate; L(+)-Tartaric acid potassium Sodium salt; butanedioic acid, 2,3-dihydroxy-, potassium sodium salt
  • CAS number: 304–59–6
  • EINECS: 206–156–8
  • Purity: >99%
  • Appearance: colourless / white crystalline solid
  • Formula:KNaC4H4O6.4H2O

    potassium sodium tartrate structure

  • Molecular weight: 282.1
  • pH: 7–8.5
  • Density: 1.79
  • Specific gravity: 2.75 g/cm3
  • Solubility in water: soluble 630g/L @20C
  • Melting point: 75C
  • Boiling point: 220C
  • Refractive index: 1.59
  • Oil Absorption: 37g/100g

The chemical composition of Potassium sodium tartrate tetrahydrate consists of Water 24.53%, Potassium 13.85%, Sodium 8.15% and Tartaric acid 53.17%. When heated it melts at 70–80C; at 100C it loses 3 water molecules and eventually becomes anhydrous at 130–140C; at 220C it begins to decompose. Potassium Sodium Tartrate has the linear formula KOCOCH(OH)CH(OH)C­OONa.4H2O

Where to Buy Rochelle salt GRG

How to make Rochelle salt crystals

The salt is prepared by adding 0.5M sodium carbonate to a hot solution of 1M potassium bitartrate (cream of Tartar). The solution is mixed thoroughly and then filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystals.

Uses for Rochelle salt

As additive in food industry ( E337 ) where it acts as sequestrant, emulsifier, stabilizer, buffer and antioxidant in cheese products, margarine, jellies, jams, minced meat, and sausage casings.

In pharmacology it is used as saline cathartics (usual adult dose: 5–10g). potassium bitartrate is administered rectally as a suppository with sodium bicarbonate to produce carbon dioxide, which promotes defecation by distending the rectal ampulla; administered for relief of constipation, and evacuation of the colon before surgical or diagnostic procedures or childbirth. It is not to be used on persons with heart problems or those on low sodium diets.
Potassium Sodium Tartrate is also used for the removal of toxic materials in some cases of poisoning.

Other applications include the preparation of piezoelectric crystals used in electrical appliances; as a laxative; in the manufacture of mirrors; in the plating industry; as a laboratory reagent; in the preparation of Fehlings solution for the detection of aldehydes; and for delaying the quick-setting of gypsum .

Health & Safety

This substance is not classified as dangerous according to Directive 67/548/EEC.

For full details see MSDS for Rochelle salt

.

Where to Buy Rochelle salt GRG online

Other Tartrate salts:

DiSodium Tartrate Dihydrate

Sodium hydrogen tartrate monohydrate – Sodium Bitartrate

Potassium Tartrate – Sodium Bitartrate

What is E337 and what is it used for ?

E337 Potassium sodium tartrate

What is E337

E337 is Potassium sodium tartrate tetrahydrate, commonly called Rochelle salt is an odourless, colourless to white crystalline solid with a salty taste. It is the double salt of tartaric acid. It is soluble in water but insoluble in alcohols. Potassium Sodium Tartrate is prepared from potassium bitartrate and sodium carbonate. Commercially it is produced as a by-product of the wine industry.

Properties and specification of E337

  • Synonyms: Potassium Sodium Tartrate; E337; Seignette’s salt; Rochelle salt; Potassium sodium tartrate tetrahydrate; Potassium sodium 2,3-dihydroxysuccinate; L(+)-Tartaric acid potassium Sodium salt; butanedioic acid, 2,3-dihydroxy-, potassium sodium salt
  • CAS number: 304–59–6
  • EINECS: 206–156–8
  • Purity: >99%
  • Appearance: colourless / white crystalline solid
  • Formula:KNaC4H4O6.4H2O

    potassium sodium tartrate structure

  • Molecular weight: 282.1
  • pH: 7–8.5
  • Density: 1.79
  • Specific gravity: 2.75 g/cm3
  • Solubility in water: soluble 630g/L @20C
  • Melting point: 75C
  • Boiling point: 220C
  • Refractive index: 1.59
  • Oil Absorption: 37g/100g

The chemical composition of Potassium sodium tartrate tetrahydrate consists of Water 24.53%, Potassium 13.85%, Sodium 8.15% and Tartaric acid 53.17%. When heated it melts at 70–80C; at 100C it loses 3 water molecules and eventually becomes anhydrous at 130–140C; at 220C it begins to decompose. Potassium Sodium Tartrate has the linear formula KOCOCH(OH)CH(OH)C­OONa.4H2O

How to make E337 Potassium Sodium Tartrate crystals

The salt is prepared by adding 0.5M sodium carbonate to a hot solution of 1M potassium bitartrate (cream of Tartar). The solution is mixed thoroughly and then filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystals.

Uses for E337 Potassium Sodium Tartrate

As additive in food industry ( E337 ) where it acts as sequestrant, emulsifier, stabilizer, buffer and antioxidant in cheese products, margarine, jellies, jams, minced meat, and sausage casings.

In pharmacology it is used as saline cathartics (usual adult dose: 5–10g). potassium bitartrate is administered rectally as a suppository with sodium bicarbonate to produce carbon dioxide, which promotes defecation by distending the rectal ampulla; administered for relief of constipation, and evacuation of the colon before surgical or diagnostic procedures or childbirth. It is not to be used on persons with heart problems or those on low sodium diets.
Potassium Sodium Tartrate is also used for the removal of toxic materials in some cases of poisoning.

Other applications include the preparation of piezoelectric crystals used in electrical appliances; as a laxative; in the manufacture of mirrors; in the plating industry; as a laboratory reagent; in the preparation of Fehlings solution for the detection of aldehydes; and for delaying the quick-setting of gypsum .

Health & Safety

This substance is not classified as dangerous according to Directive 67/548/EEC.

.

Where to Buy Potassium Sodium Tartrate GRG

Other Tartrate salts:

DiSodium Tartrate Dihydrate

Sodium hydrogen tartrate monohydrate – Sodium Bitartrate

Potassium Tartrate – Sodium Bitartrate