{"product_id":"cw-1537","title":"Oxygen Scavengers","description":"\u003ch1\u003eOxygen Scavengers\u003cbr\u003e\n\u003c\/h1\u003e\u003cspan style=\"font-weight: bold;\"\u003eWhat is an Oxygen Scavenger?\u003c\/span\u003e\u003cbr\u003eThe purpose of an Oxygen Scavenger to to remove the dissolved oxygen in the make-up water or where dissolved oxygen. Oxygen in water is extremely corrosive and becomes worse at higher temperatures and pressures. For 95% of most boiler chemical applications, sodium sulfite is used in either powdered or liquid form. So we will only discuss sodium sulfite to keep it simple. This product may also be used as a wet boiler lay up. The products are listed above as sodium sulfite oxygen scanvenger, but may have blended of potassium sulfite. Please refer to the MSDS.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eWhat types of oxygen scavengers are there?\u003c\/span\u003e\u003cbr\u003eIn boiler applications higher then 300 hp, a 4.0 pH 38% concentration of sodium sulfite is used with an alkalinity builder.  For boilers \u0026lt; 200 hp or boilers with a good operating deaerator, the product choice is a 7.0 sulfite. In most cases, a 7.0 pH sulfite may eliminate the need for an alkalinity product.  For those that do not mind mixing and handling powders, the most economical choice is always a powdered sulfite.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eWhat is an Sodium Sulfite?\u003c\/span\u003e\u003cbr\u003eLiquid sodium sulfite typically is a 38% solution at around 4 pH. Other dilutions of the products are made at lower concentration to provide neutralized solutions of sodium sulfite at 7.0 pH and basic product solutions of 10 pH. If you require a 10 pH sulfite, please contact us. These can only be used in special boilers because of foaming issues.\u003cbr\u003e\u003cbr style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003eWhat is the recommended residual rate?\u003c\/span\u003e\u003cbr\u003eMaintain a sulfite residual of 20 to 40 ppm in the boiler water. More residual provides additional protection against dissolved solids in cases of large water demands or process changes. Use a Sulfite Test Kit to monitor the residuals of sulfite in the boiler.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eHow do you feed \u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003eSodium Sulfite\u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003e?\u003c\/span\u003e\u003cbr\u003eFeed the the sulfite to the center of the feed water tank with an injection quill so it disperses evenly throughout the tank.  Sulfite should be fed to the boiler when the boiler calls for water.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eHow do you monitor \u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003eSodium Sulfite\u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003e?\u003c\/span\u003e\u003cbr\u003eUse a sulfite residual test kit. It is a simple hand held titration.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eDoes ChemWorld have a product that is 10 to 20% Sodium Sulfite and 1 to 5% Potassium Sulfite?\u003c\/span\u003e\u003cbr\u003eYes, This is the product labeled 19% Sulifte. 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