Disodium Phosphate is a sodium salt of phosphoric acid, commonly known as Disodium Hydrogen Phosphate or Sodium Phosphate Dibasic. It is an inorganic phosphate ingredient that can be used in suitable cosmetic and personal-care formulations primarily for buffering and pH adjustment.
Disodium Phosphate is available in different hydration states, and the exact hydration state is important when specifying the product because it affects the molecular formula and molecular weight. The commonly used anhydrous form has CAS Number 7558-79-4, molecular formula Na₂HPO₄, and molecular weight 141.96 g/mol. The dihydrate form has CAS Number 10028-24-7, molecular formula Na₂HPO₄·2H₂O, and molecular weight 177.99 g/mol.
Disodium Phosphate is generally supplied as a white crystalline powder or crystals. It is water-soluble and can be incorporated into appropriate aqueous formulation systems.
In cosmetic formulation development, Disodium Phosphate can be used as part of a phosphate buffer system to help maintain the desired pH of a formulation. The actual concentration and combination with other buffering ingredients depend on the formulation requirements.
Potential cosmetic applications include facial cleansers, creams, lotions, shampoos, conditioners, gels and other suitable aqueous or emulsion-based personal-care formulations.
Disodium Phosphate should not be confused with Sodium Phosphate Monobasic or Trisodium Phosphate, as these are different phosphate salts with different chemical compositions and properties.
Disodium Phosphate is the disodium salt of phosphoric acid and is also known as Disodium Hydrogen Phosphate or Sodium Phosphate Dibasic.
The anhydrous form has CAS Number 7558-79-4, molecular formula Na₂HPO₄ and molecular weight 141.96 g/mol.
The commonly encountered dihydrate form has CAS Number 10028-24-7, molecular formula Na₂HPO₄·2H₂O and molecular weight 177.99 g/mol.
Disodium Phosphate can be evaluated in cosmetic formulations where buffering, pH control and water-soluble phosphate functionality are required.
Important technical information includes:
Disodium Phosphate can be evaluated as a formulation-support ingredient in cosmetic and personal-care products.
Its principal formulation role is associated with buffering and pH adjustment. It can be combined with other phosphate salts to create buffer systems suitable for particular formulation pH ranges.
Potential applications include:
The appropriate concentration should be established according to the specific formulation and applicable cosmetic requirements.
Disodium Phosphate can be evaluated in suitable skincare systems where pH control is required.
Potential applications include:
Formulators should evaluate the buffer system, pH, ionic strength and compatibility with active ingredients, preservatives and other formulation components.
Disodium Phosphate can be evaluated in suitable hair-care formulations as part of a buffering system.
Potential applications include:
Compatibility with surfactants, conditioning agents, polymers, preservatives and other ingredients should be evaluated during formulation development.
Important formulation considerations include:
The hydration state must be considered when calculating formulation quantities because anhydrous Disodium Phosphate and Disodium Phosphate Dihydrate have different molecular weights.
Disodium Phosphate Cosmetic Raw Material Manufacturer in India is a relevant B2B search phrase for cosmetic manufacturers and personal-care formulators.
Before procurement, buyers should evaluate:
Disodium Phosphate Supplier in India is a relevant commercial keyword for businesses sourcing Disodium Phosphate for cosmetic formulation development.
Supplier documentation should clearly specify whether the material is:
This distinction is important because the CAS number and molecular weight are different.
Disodium Phosphate Manufacturer and Supplier in India is a relevant B2B search phrase for businesses sourcing Disodium Phosphate as a cosmetic raw material.
Potential formulation categories include:
Disodium Phosphate Bulk Supplier India is relevant for businesses requiring larger quantities for cosmetic manufacturing.
Bulk procurement should specify:
What is Disodium Phosphate?
Disodium Phosphate is the disodium salt of phosphoric acid, also known as Disodium Hydrogen Phosphate or Sodium Phosphate Dibasic.
What is the CAS Number of Disodium Phosphate?
The anhydrous form has CAS Number 7558-79-4. The dihydrate form has CAS Number 10028-24-7.
What is the molecular formula of Disodium Phosphate?
The anhydrous form has the formula Na₂HPO₄. The dihydrate form has the formula Na₂HPO₄·2H₂O.
What is the molecular weight of Disodium Phosphate?
The anhydrous form has a molecular weight of 141.96 g/mol, while the dihydrate form has a molecular weight of 177.99 g/mol.
What is the INCI Name of Disodium Phosphate?
The commonly used INCI designation is Sodium Phosphate.
What is the function of Disodium Phosphate in cosmetics?
It can function as a buffering agent and pH adjuster in suitable cosmetic formulations.
Is Disodium Phosphate water-soluble?
Yes. Disodium Phosphate is soluble in water, although solubility depends on the specific form and temperature.
Where is Disodium Phosphate used?
It can be evaluated in creams, lotions, cleansers, gels, shampoos, conditioners and other suitable aqueous or emulsion-based formulations.
What is the difference between Disodium Phosphate and Sodium Phosphate Monobasic?
Disodium Phosphate is the dibasic sodium phosphate form, while Sodium Phosphate Monobasic is the monobasic form. They have different chemical compositions and buffering properties.
| Parameter | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |