Sodium Hexametaphosphate to precipitate calcium in low-pressure boilers

Sodium Hexametaphosphate supplier

Sodium hexametaphosphate is a commonly used source of orthophosphate anion used to precipitate calcium in low-pressure boilers. With dispersants the calcium phosphate becomes a fluidized sludge capable of being blown down and out of the boiler before the calcium can form a deposit.

Example

The reaction rate is the first part of the equation and the residual the second part:

Oxygen scavengers for Boiler Water

Oxygen scavengers are best fed to the storage section of the deaerator or feedwater tank. In most low-pressure industrial boiler systems, if oxygen remains in the feedwater and enters the boiler, it is too late to remove all of the oxygen and protect the boiler and condensate from oxygen corrosion. A residual of sulfite or other.

Oxygen scavenger in the boiler cannot chemically reduce all of the oxygen before it escapes with the steam or reacts with the metal surfaces.

Cooling water treatment chemicals CWT Nitrite Borax Corrosion Scale Inhibitor Liquid

Mercaptobenzothiazole with sulfamic acid

Mercaptobenzothiazole plays a role of corrosion inhibitor with Sulfamic Acid.  Mercaptobenzothiazole also works as Biocide. Uses of sulfamic acid without blend of corrision inhibitor not recommended scientifically. As Sulfamic acid attack on metal surface to corrode. While small presence of corrosion inhibitor increases sulfamic acid utility for descaling purpose.

Product: 

Sulfamic Acid Descaler Cleaner

COMPARATIVE TEST METHOD FOR DEHA

COMPARATIVE TEST METHOD FOR DEHA
Take sample in 2 cells with 10 ml of Standard Solution of DEHA.

Then in both cell add 6 drops DEHA Test Solution and mix. Then add 1.0 ml (25 drops) DEHA Indicator Solution and mix.

Place the cell in a dark area and wait for 10 minutes.

Rotate disc until fully colour  is obtained. Record disc reading.

Product: 

Diethyl Hydroxyl Amine N,N- DEHA

Diethylhydroxylamine Analysis

DEHA Analysis method

Diethyl hydroxyl amine DEHA or other oxygen scavengers in the sample buffered between pH 4 and 10 react with ferric iron in the Fe(III) solution to produce ferrous ion in an amount

that is equivalent to the DEHA concentration. This solution then reacts with ferrozine reagent, which forms a purple colour with ferrous iron that is proportional to the concentration of the oxygen scavenger.
 

Analysis steps

EDTA Ethylene Diamine TetraAcetic Acid

EDTA - Ethylene Diamine TetraAcetic Acid

EDTA is a weak acid used as chelating agent which can form four or six bonds with metal ion. Forming EDTA-metal complexes.

ONE SHOT Boiler water treatment chemical products to control scale corrosion sludge

 ONE SHOT Boiler water treatment chemical products to control scale and corrosion inhibitors, oxygen scavengers, and sludge conditioners. A one-step and one SHOT treatment to control the formation of rust and scale in boilers. Contains alkaline compounds, scale and corrosion inhibitors, oxygen scavengers and sludge conditioners. which resulting in a scale and corrosion control by one shot operation.