SHMP-Sodium Hexametaphosphate function in water treatment
Sodium Hexametaphosphate, also known as SHMP, is commonly used in water treatment processes for several functions:
1. Complexing Metal Ions: SHMP can gradually hydrolyze into phosphite in water, which gives it a good ability to complex metal ions. It can complex with calcium, magnesium, iron, and some other metal ions to form a soluble complex. This prevents the precipitation of hardly soluble salts of alkali metal.
2. Water Softening: SHMP is widely used in the softening of various industrial water. It has a greater complexing capacity for CA++ than other phosphates, making it useful in industrial sectors that have high requirements for water quality.
3. Scale Inhibition: SHMP acts as a scale inhibitor, dispersing insoluble inorganic salts in water and preventing their precipitation and scaling on the surface of metals. This helps maintain good heat transfer effects for metal equipment.
4. Corrosion Inhibition: SHMP is used as a corrosion inhibitor, helping to prevent rust formation in water systems.
5. Dispersing Agent: SHMP acts as a dispersing agent, helping to remove deposits that attract and bind additional solid particles found in the water.
6,pH buffering: SHMP can help stabilize the pH of water, preventing excessive fluctuations and maintaining optimal conditions for other treatment chemicals to work effectively.
7. Other Uses: In the petroleum industry, it is used to prevent the rust of drill pipes and control the viscosity of mud during the oil drilling process.
Sodium Hexametaphosphate plays a crucial role in water treatment by improving the efficiency of other treatment chemicals, preventing scale formation, reducing corrosion, and ensuring the quality and safety of the treated water.
