texapon n70

Calcium oxychlorides

A confusion sometimes reigns between calcium oxychlorides and calcium hypochlorite. Indeed, the name calcium oxychloride (or calcium hydroxychloride) does not immediately refer to calcium hypochlorite, but is only applicable to the mixed calcium basic chloride compounds remaining unreacted in the bleaching powder, such as, e.g. CaCl₂ · 2 Ca(OH)₂.

Calcium oxychloride may also be formed in concrete in roads and bridges when calcium chloride is used as deicing agent during winter. Calcium chloride then reacts with calcium hydroxide (portlandite) present in cement hydration products and forms a deleterious expanding phase also named CAOXY (abbreviation for calcium oxychloride) by concrete technologists. The stress induced into concrete by crystallisation pressure and CAOXY salt expansion can considerably reduce the strength of concrete.

Chemical properties

Calcium hypochlorite exhibits both acido-basic and oxydo-reduction properties. It is a relatively strong base.

Calcium hypochlorite solution is basic as the hypochlorite anion can accept a proton from a water molecule leaving a hydroxyُl anion in solution. This basicity is due to the propensity for the hypochlorite anion to accept a proton to become hypochlorous acid, a weak acid:

ClO⁻  + H₂O ↔ HClO + OH⁻

The hypochlorite anion is also a strong oxidizing agent containing a chlorine atom at the valence I (redox state: Cl+1) which reacts under acidic conditions with the reduced chloride species (Cl^–, here the reducing agent) present in hydrochloric acid to form calcium chloride, water and gaseous chlorine. The overall reaction is:

Ca(ClO)₂ + 4 HCl → CaCl₂ + 2 H₂O + 2 Cl₂

Inhibitor of salt sedimentations Antiskalant Vitek 3000 allows

to prevent formation of a deposit of slightly soluble inorganic compounds on a surface of membranes in systems of water treatment.

Antiskalant of the Vitec 3000 Brand for the membrane Filmtec elements of the Dow company.

Antiskalant of the ROPUR RPI-3000A Brand for the membrane TORAY elements.

The Antiskalant (antiskalyant, inhibitor of deposits) is intended for prevention of adjournment of a deposit which is formed by insoluble compounds of iron in water, carbonates of shchelochnozemelny and some other metals, on a surface of membranes water purification installations. This reagent is recommended for protection of polyamide membranes.

Application of an antiskalant in practice consists in exact dispensing of reagent in the initial water arriving on installation of the return osmosis (nanofiltration).

Our company at design and production of membrane installations uses two types of inhibitors of salt sedimentations (Antiskalantov) of the membrane elements recommended by producers.

Chlorine Tablets are thicker than other pool chlorine tablets, allowing them to dissolve slower and protect your pool water for longer. Moreover, 3 inch chlorine tablets are the ideal size for your floaters or automatic feeders. These industry-leading chlorine tabs have 90% available stabilized chlorine for long lasting sanitizing power. floaters or automatic feeders. These industry-leading chlorine tabs have 90% available stabilized chlorine for long lasting sanitizing power.

How to use chlorine tablets:

Add 1-2 chlorine tablets to every 10,000 gallons of pool water.

For best results, we recommend testing the chlorine level once per week.

Increase dosage after heavy use, rain or warm temperatures.