Cooling and Heat Transfer Systems
Demineralized Water is used as a base fluid in closed-loop cooling and heat transfer systems to minimise scale formation, reduce corrosion, and support stable system performance.
Others
Demineralized Water (Demi-Water)
Buy Demineralized Water (Demi-Water) in Bulk, Drums & IBCs – Industrial Grade Available
Rotterdam Chemicals Group supplies Demineralized Water, also referred to as Demi-Water, for industrial and technical applications where low mineral content and consistent water quality are required. Produced through demineralization processes such as ion exchange, Demi-Water is a clear, colourless, and odourless liquid with low electrical conductivity and minimal residue after evaporation.
Demineralized Water is used as a standalone product across chemical processing, cooling and heat transfer systems, and industrial utilities, while also serving as a reliable base component in chemical formulations and glycol mixtures such as Mono Propylene Glycol (MPG).
What is Demineralized Water?
Demineralized Water (CAS 7732-18-5), also known as Demi-Water, is water that has undergone purification to remove dissolved minerals, salts, and ions. Its low mineral content and chemical neutrality result in stable performance across a wide range of industrial applications.
These properties make Demineralized Water particularly suitable for environments where untreated or mineral-rich water could cause scaling, corrosion, or inconsistent process behaviour. As a result, Demi-Water is valued for its reliability and consistency, both as an industrial utility and as a base component in chemical formulations, glycol mixtures, and technical process systems across multiple industries.
Applications Across Industries
Chemical Formulations and Dilutions
It is applied as a carrier and diluent in chemical formulations where low mineral content, process stability, and consistent quality are required.
Automotive and Industrial Fluids
Demineralized Water is commonly blended with glycols such as Mono Ethylene Glycol (MEG) or Mono Propylene Glycol (MPG) for antifreeze and coolant formulations in automotive and industrial applications.
Laboratory and Technical Use
It is suitable for rinsing, testing, and general technical laboratory applications that require mineral-free water but do not demand analytical-grade purity.
Cleaning and Rinsing Processes
Demineralized Water is used in industrial cleaning and rinsing operations where residue-free drying is essential for components, surfaces, and equipment.
Water Treatment and Ion Exchange Systems
It is applied in ion exchange processes and technical water systems that require low electrical conductivity and controlled water quality.
Industrial Utilities and Process Water
Demineralized Water supports general industrial utilities and process water applications in production environments where consistent water characteristics are necessary.
Grades and Packaging Options
Available Packaging*
200L drums (palletized)
1000L IBC containers
Road tank transportation
20L cans
Custom packaging solutions available upon request
*All formats available directly from our Rotterdam warehouse with international supply support.
Available Grades
High-Purity Grade (on request) – For technical applications requiring tighter control of conductivity and dissolved solids.
Industrial Grade – For chemical processing, cooling systems, industrial utilities, and cleaning applications requiring low mineral content.
Industrial Grade – For chemical processing, cooling systems, industrial utilities, and cleaning applications requiring low mineral content.
Specifications and Technical Details
|
Property |
Reference Values
|
CAS Number |
|
7732-18-5 |
|
EC Number |
|
231-791-2 |
|
Molecular Formula |
|
H2O |
|
Appearance |
|
Clear, colorless liquid |
Odour
|
Odourless |
|
Boiling Point |
|
100 °C (1 atm) |
|
Flash Point |
|
Not applicable (non-flammable) |
|
Density (20 °C) |
|
Approx. 0.998 g/cm³ |
|
Electrical Conductivity |
|
≤ 1.0 – 5.0 µS/cm |
|
Total Dissolved Solids (TDS) |
|
< 5 mg/L |
|
pH Value |
|
6.5 – 7.5 |
|
Residue after evaporation |
|
Minimal |
|
Solubility |
|
Miscible with most inorganic and organic substances |
Compliance and Documentation
REACH Registered
SDS, TDS, and Certificate of Analysis available upon request
Produced and handled under controlled quality procedures
Logistics and Global Supply
Demineralized Water is supplied from our Rotterdam hub with reliable European and international logistics support. Flexible packaging options and consistent availability ensure dependable supply for both standalone industrial use and formulation applications.
Frequently Asked Questions (FAQ)
What is Demineralized Water used for?
It is used in chemical manufacturing, cooling systems, glycol mixtures, water treatment processes, and industrial utilities where low mineral content is required.
Is Demineralized Water the same as distilled water?
No. Demineralized water is produced through ion removal processes, while distilled water is produced through evaporation and condensation. Both have low mineral content, but they are produced differently.
Can Demineralized Water be used with Mono Propylene Glycol (MPG)?
Yes. It is commonly used as a base component in MPG mixtures for cooling and heat transfer applications.
Is this product suitable for food or pharmaceutical use?
No. The supplied grade is intended for industrial and technical applications only, unless explicitly specified otherwise.
Request a Quote or More Information
Looking to secure your supply of Demineralized (Demi) Water?
Contact Rotterdam Chemicals Group to discuss packaging options, logistics, and technical documentation.