Dissolved oxygen pits boiler tubes, feedwater lines and pipework left full of hydrotest water. A deaerator takes out most of it; an oxygen scavenger reacts with what is left. We stock five chemistries in Barka, plus the test kits to check the residual, and deliver across Oman.
| Chemistry | Where it is used | Products in stock |
|---|
| Sodium sulfite, plain or catalysed (Na2SO3) | Low and medium pressure boilers and hot-water systems. The catalysed grade reacts faster (product data). | Catalysed Sulphite Powder, Catalysed Sulphite Liquid, Sodium Sulphite, CorroSOL 26 Neutralised Sulphite, Boiler Oxy Control, Oxygen Treat Powder 25 kg |
| Bisulfite (sodium or ammonium) | Feedwater, injection water and other industrial water | Bisulfite-based Oxygen Scavenger, Ammonium Bisulfite Oxygen Scavenger |
| DEHA (N,N-diethylhydroxylamine) | Volatile: it carries over with the steam and also protects the condensate system. Common in higher-pressure boilers. | DEHA, Oxytreat Plus (hydrazine + DEHA), Oxygen Remover Plus |
| Carbohydrazide | Boiler oxygen removal | Carbohydrazide, Oxygen Scavenger Carbohydrazide |
| Hydrazine hydrate | Boilers: N2H4 + O2 gives nitrogen and water, so it adds no dissolved solids. Toxic; check your site approval list first. | Catalysed Hydrazine Hydrate 35, Hydrazine Hydrate 35, Hydrazine Hydrate 50% |
| Hydrotest blends | Pipelines and tanks left filled after pressure testing | Hydro Testing Oxygen Scavenger, Hydrotest Oxygen Scavenger with Biocide |
| Residual testing | Daily check of the scavenger level in boiler water | Sulphite Test Kit, Hydrazine Test Kit, Carbohydrazide Test Kit |
Sulfite turns into sodium sulphate in the boiler, so it adds dissolved solids and raises blowdown. Hydrazine reacts to nitrogen and water and adds none; DEHA and carbohydrazide are also volatile treatments that add little. Pick by boiler pressure, whether you need condensate protection, and what your plant allows on site.
Background on oxygen corrosion is in our oxygen scavenger guide. Condensate amines and closed-loop inhibitors are under Corrosion Inhibitors, and the rest of the boiler range under Boiler Chemicals. For a quote, WhatsApp +968 7733 3599 with the boiler pressure and steam output.