Double distilled water is a substance obtained through a double distillation process, which removes hardness and contaminating particles, as well as any other impurities that could be harmful to the body.
How is double distilled water obtained?
The double distillation process is carried out in two stages. First, the initial water is evaporated to separate it from the salts and is returned to its liquid state once the process is complete. It is then subjected again to another process to release any carbon dioxide that may still be present.
The distillation process is very important for the production of bi-distilled water, as it removes all naturally occurring ions such as chlorides, magnesium, calcium and fluorides. There should also be no trace of metals, harmonium or carbonic acid.
Characteristics of double distilled water
These are some of the most recognised properties of bidistilled water:
- High level of purity.
- Low conductivity.
- High dielectric constant.
- No or almost no carbon dioxide content.
- Free of magnesium, calcium and other elements.
Uses of bidistilled water What is it used for?
The purity of bidistilled water makes it the ideal product for medical and veterinary use. Among the possible uses of bidistilled water are the following:
- Cleaning and disinfection of superficial wounds.
- As a solvent for medicines.
- Feeding in dialysis equipment.
- Ozone applications.
- Synthesis and analytical chemistry applications.
Difference between double distilled and distilled water
The main difference is that distilled water has low levels of salts and minerals, so its conductivity is very low. However, bi-distilled water has a higher level of purity due to its deionisation process.
This results in better quality water, making it ideal for sanitary use.
Differences between distilled water and saline water
As we know, bidistilled water is composed of H2O purified by processes to obtain a pure solution, free of minerals and bacteria.
However, saline is an isotonic solution that consists of water and salt in a concentration of 0.9%, similar to the body fluids of our organism.
Is bidistilled water the same as injectable water?
No. When we talk about injectable water, we are referring to physiological saline solution, which, as we have already said, is a solution made from water and salt in concentrations similar to the fluids found in our body. Moreover, this serum can only be injected when it is in sterile conditions.
We remind you that the WHO does not recommend the use of distilled or double-distilled water for water-soluble or water-reconstituted medicines.
Can I buy double-distilled water without a prescription?
The answer is yes. At Farmaciasdirect you can buy double-distilled water without a prescription, as it is a medicine for general use.
