Sodium hexametaphosphate
| Price: | 62 UAH |
| Company: | HIMPRODUKT OOO |
| Seller: |  Otdel Prodazh Himprodukt |
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| Address: | Ukraine, Kyiv |
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Sodium hexametaphosphate(hexaphosphate/polyphosphate sodium, salt Graham) is a substance of inorganic nature, sodium salt and hexaphosphoric acid. Has a specific quality and a wide use, which we further consider in more detail.
This material looks like a solid crumbly the product (free-flowing powdery mass), transparent or white color (possible green tint), formed without color crystals.
Is a substance with the greatest concentration of phosphate, which are available in industry. He is characterized by great adsorption and dispersing quality.
The synthesis of this substance looks like dehydration or melting of monobasic phosphate of sodium in a muffle furnace + efficient cooling is obtained the melted mass.
This product is of two types: food and technical. They differ from each other by the amount of iron in the composition (0.02 and Of 0.05 %), insoluble in H2O components (0.05 and 0.06 percent), pH (5.8 to 6.5 5.8 to 7,3), and some other parameters. The amount of phosphorus oxide and there, and there must be at least 68 %, and inactive oxides of phosphorus – not more than 7.5 %. The food varieties also normalized amounts of heavy metals – 0.001 %, As and fluoride – a maximum of Of 0.0003 and 0.003 %, respectively.
Application technical directions. Most often, perhaps, the reagent used in prom. systems photomachine. He is the most active function with significant delatnosti. That is, forms a resistant aggregate for a shorter period time and at lower t (up to 40 °C), in comparison with other phosphates, such with the sodium tripolyphosphate.
Additional advantages can be credited reduced caking during storage, lack of toxicity, availability anti-corrosion qualities, the ability to reduce to form scale on the inner walls of the heating boilers. Polyphosphate sodium is good on increasing the heat transfer, gives you the ability to maximize operational period pipes and filters, making, last but not least, and acquired considerable popularity.
It is used in the role of corrosion zaderzhala and defender from layers of calcium carbonatein systems transport natural water and cooling-max-circulating type supply technical water. What is the saturation of the medium required for cleaning activities depend on the impurities in water and how fast it is moving. But in General, protection is provided even for small quantities inhibitor.
Treated with hexametaphosphate sodium and drinking water, with the aim of newsnigeria, nacio-corrosion manifestations. If you compare this process with the exposure on teh water, here set
