
Trace Heating & Heat Trace Systems: 25% Sodium Bisulphite
TRACE HEATING CABLES & SYSTEMS
25% Sodium Bisulphite
Thorne & Derrick stock and distribute heat trace cables and provide heat trace system designs for process maintenance, pipe and vessel freeze protection – this includes industrial and hazardous area approved electrical trace heating for potentially explosive atmospheres (ATEX & IECEx).
25% Sodium Bisulphite in fact is not a real compound but a mixture of salts that dissolve in water to give solutions composed of sodium and bisulphite ions. It is a white solid with an odour of sulphur dioxide
- Formula: NaHSO3
- Molar Mass: 104.061Â g/mol
- Density: 1.48Â g/cm3
- Freezing Point: 0°C
Trace heating is able to heat up and maintain Sodium Bisulphite in highly corrosive atmospheres.
 T&D stock trace heating cables in a range of technologies including self-regulating, constant wattage, mineral insulated and parallel resistance types with international hazardous area location classifications.
Should you require assistance with the supply or design of simple, custom or complex electric heating systems for acetic acid applications please do not hesitate to contact us.
Trace Heating & Heat Tracing Cable Systems Specialists | Thorne & Derrick

Trace Heating & Heat Trace Systems: Sodium Sulphite
TRACE HEATING CABLES & SYSTEMS
Sodium Sulphite
Thorne & Derrick stock and distribute trace heating cables and provide heat trace system designs for process maintenance, pipe and vessel freeze protection – this includes industrial and hazardous area approved electrical trace heating for potentially explosive atmospheres (ATEX & IECEx).
Sodium Sulphite is an inorganic compound that is used as an antioxidant and preservative. It is a pale yellow and water-soluble solid. Sodium sulphite can be prepared by treating a solution of sodium hydroxide with sulfur dioxide.
- Formula: Na2SO3
- Molar Mass: 126.043 g/mol
- Density: 2.633g/cm3 (anhydrous) 1.561g/cm3Â (heptahydrate)
- Freezing Point: 20°C
Trace heating is able to heat up and maintain Sodium Sulphite in highly corrosive atmospheres.
 T&D stock trace heating cables in a range of technologies including self-regulating, constant wattage, mineral insulated and parallel resistance types with international hazardous area location classifications.
Should you require assistance with the supply or design of simple, custom or complex electric heating systems for acetic acid applications please do not hesitate to contact us.
Trace Heating & Heat Tracing Cable Systems Specialists | Thorne & Derrick

Trace Heating & Heat Trace Systems: Ammonium Bisulphite
TRACE HEATING CABLES & SYSTEMS
Ammonium Bisulphite
Thorne & Derrick stock and distribute trace heating cables and provide heat trace system designs for process maintenance, pipe and vessel freeze protection – this includes industrial and hazardous area approved electrical trace heating for potentially explosive atmospheres (ATEX & IECEx).
Ammonium Bisulphite also known as ammonium hydrogen sulphate, is a white, crystalline solid. It is the product of the half-neutralisation of sulphuric acid by ammonia.
- Formula: (NH4)HSO4
- Molar Mass: 115.11 g/mol
- Density: 1.78 g/cm3
- Freezing Point: 0°C
Trace heating is able to heat up and maintain Ammonium Bisulphite in highly corrosive atmospheres.
 T&D stock trace heating cables in a range of technologies including self-regulating, constant wattage, mineral insulated and parallel resistance types with international hazardous area location classifications.
Should you require assistance with the supply or design of simple, custom or complex electric heating systems for acetic acid applications please do not hesitate to contact us.
Trace Heating & Heat Tracing Cable Systems Specialists | Thorne & Derrick

Trace Heating & Heat Trace Systems: Ammonium Sulphite
TRACE HEATING CABLES & SYSTEMS
Ammonium Sulphite
Thorne & Derrick stock and distribute trace heating cables and provide heat trace system designs for process maintenance, pipe and vessel freeze protection – this includes industrial and hazardous area approved electrical trace heating for potentially explosive atmospheres (ATEX & IECEx).
Ammonium Sulphite is colourless and the ammonium salt of sulfurous acid. It can be made by a reaction of ammonia with sulphur dioxide 2NH3 + SO2 + H2O → (NH4)2SO3.
- Formula: (NH4)2SO3
- Molar Mass: 116.14 g/mol
- Freezing Point: 0°C
Trace heating is able to heat up and maintain Ammonium Sulphite in highly corrosive atmospheres.
 T&D stock trace heating cables in a range of technologies including self-regulating, constant wattage, mineral insulated and parallel resistance types with international hazardous area location classifications.
Should you require assistance with the supply or design of simple, custom or complex electric heating systems for acetic acid applications please do not hesitate to contact us.
Trace Heating & Heat Tracing Cable Systems Specialists | Thorne & Derrick

Trace Heating & Heat Trace Systems: Acetic Acid
TRACE HEATING CABLES & SYSTEMS
Acetic Acid
Thorne & Derrick stock and distribute heat trace cables and provide heat trace system designs for process maintenance, pipe and vessel freeze protection – this includes industrial and hazardous area approved electrical trace heating for potentially explosive atmospheres (ATEX & IECEx).
Acetic acid which can also be referred to as ethanoic acid is a clear uncoloured liquid with a vinegar-like stench. In it’s purest form it is known as a glacial acetic acid. Acetic acid is the main component of vinegar, which contains 4 to 18% acetic acid.
- Formula: CH3COOH
- Molar Mass: 60.52 g/mol
- Boiling Point: 117.9ºC
- Density: 10.5 g/cm³
- Melting Point: 16.6°C
Trace heating is able to heat up and maintain Acetic acid in highly corrosive atmospheres.
 T&D stock trace heating cables in a range of technologies including self-regulating, constant wattage, mineral insulated and parallel resistance types with international hazardous area location classifications.
Should you require assistance with the supply or design of simple, custom or complex electric heating systems for acetic acid applications please do not hesitate to contact us.
Trace Heating & Heat Tracing Cable Systems Specialists | Thorne & Derrick