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Dibasic Sodium Phosphate Heptahydrate

Dibasic Sodium Phosphate Heptahydrate

Dibasic sodium phosphate heptahydrate is a versatile inorganic salt used as a buffer, sequestrant, and emulsifier in food, pharma, and water treatment applications. It dissolves readily in water to form mildly alkaline solutions, making it ideal for pH control in formulations and laboratory buffers.

With 98% purity and controlled moisture, it delivers consistent performance in detergents, metal cleaning, and boiler treatment where scale prevention and alkalinity are critical.

Sr. No. Description Specification
1 Purity 98%
2 Chemical Formula Na₂HPO₄·7H₂O
3 Form White crystalline powder
4 Country of origin India
5 Quantities 25 kg bags and larger kg lots for bulk users
  • White crystalline powder with a density of around 1.68 g/cm³ and a moisture content of 44–57% (water of crystallization).​

  • Freely soluble in water, giving alkaline solutions with a pH of around 9 at typical buffer concentrations.

  • Non-flammable, stable under normal storage and handling, with low reactivity.

  • Efflorescent; may lose water and partially convert to lower hydrates on heating.

  • pH control and buffering in food, beverage, and dairy formulations.

  • Builder and sequestering agent in detergents and cleaning formulations.

  • Water treatment additive for scale and corrosion control in boilers and cooling systems.

  • Laboratory and process buffers for biochemical and analytical procedures.

  • Industrial/food grades available with low heavy metal and insoluble content.

  • Store in a cool, dry, well-ventilated area in tightly closed bags to minimize caking and moisture gain.

  • Dust may cause irritation to eyes, skin, and respiratory tract; use gloves, goggles, and dust mask and ensure local exhaust ventilation.

  • Avoid contact with strong acids; neutralization can release heat and generate disodium/monosodium phosphate mixtures.

Dibasic Sodium Phosphate Heptahydrate
Sr. No. Description Specification
1 Purity 98%
2 Chemical Formula Na₂HPO₄·7H₂O
3 Form White crystalline powder
4 Country of origin India
5 Quantities 25 kg bags and larger kg lots for bulk users
  • White crystalline powder with a density of around 1.68 g/cm³ and a moisture content of 44–57% (water of crystallization).​

  • Freely soluble in water, giving alkaline solutions with a pH of around 9 at typical buffer concentrations.

  • Non-flammable, stable under normal storage and handling, with low reactivity.

  • Efflorescent; may lose water and partially convert to lower hydrates on heating.

  • pH control and buffering in food, beverage, and dairy formulations.

  • Builder and sequestering agent in detergents and cleaning formulations.

  • Water treatment additive for scale and corrosion control in boilers and cooling systems.

  • Laboratory and process buffers for biochemical and analytical procedures.

  • Industrial/food grades available with low heavy metal and insoluble content.

  • Store in a cool, dry, well-ventilated area in tightly closed bags to minimize caking and moisture gain.

  • Dust may cause irritation to eyes, skin, and respiratory tract; use gloves, goggles, and dust mask and ensure local exhaust ventilation.

  • Avoid contact with strong acids; neutralization can release heat and generate disodium/monosodium phosphate mixtures.

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