Sodium Acetate is the sodium salt of acetic acid and is widely recognized as a versatile chemical ingredient with buffering and formulation-supporting properties. It is represented by the chemical formula C₂H₃NaO₂ and is commonly supplied in either anhydrous or trihydrate form. The anhydrous form has a molecular weight of 82.03 g/mol, while Sodium Acetate Trihydrate has a molecular weight of 136.08 g/mol.
In cosmetic formulations, Sodium Acetate is primarily valued for its ability to participate in buffering systems and pH control. It can help establish and maintain a desired formulation environment when used together with suitable acidic components. It is also recognized as a fragrance-functional ingredient in cosmetic applications.
Sodium Acetate is also known as Acetic Acid, Sodium Salt or Sodium Ethanoate. Its primary CAS Number is 127-09-3 for the anhydrous substance, while Sodium Acetate Trihydrate is identified by CAS 6131-90-4. The chemical formula of anhydrous Sodium Acetate is C₂H₃NaO₂.
Commercial Sodium Acetate may therefore be supplied according to the required hydration state. Anhydrous material is generally encountered as a white crystalline powder or crystalline solid, while trihydrate material contains three molecules of water of crystallization. The choice between these forms is important when calculating formulation quantities and finished-product composition.
A recognized USP-NF specification describes Sodium Acetate as containing 99.0–101.0% sodium acetate on the dried basis, applicable to the anhydrous or trihydrate material according to the monograph. The assay should not automatically be described as HPLC because the applicable compendial method must be confirmed against the specific specification being supplied.
Sodium Acetate is principally used as a buffering ingredient in cosmetic and personal-care formulations. Buffer systems are important because formulation pH can influence ingredient stability, preservative performance, skin compatibility, viscosity and overall product characteristics.
The ingredient can be incorporated into formulations where controlled pH adjustment is required. It is particularly useful when Sodium Acetate is combined with acetic acid or another compatible acidic component to create an acetate buffer system.
Sodium Acetate is also listed for a fragrance-functional role, where it can function as an excipient associated with perfume oils or flavours. Its practical role therefore depends on the overall formulation design and the concentration selected by the formulator.
Sodium Acetate Cosmetic Ingredient can be considered for a range of personal-care and cosmetic formulation systems where buffering or formulation pH management is required. Potential applications include skin-care formulations, hair-care products, cleansing preparations, personal-care formulations and fragrance-related systems.
In skin-care formulations, controlled pH can be important for maintaining the intended characteristics of the finished product. In hair-care products, a suitable buffering system may help maintain the desired formulation environment during storage and use.
Sodium Acetate may also be useful in formulations where compatibility between acidic and alkaline components needs to be carefully managed. The final concentration should always be determined through formulation development, stability evaluation and the applicable cosmetic regulations for the intended market.
The hydration state of Sodium Acetate should be considered during formulation because anhydrous Sodium Acetate and Sodium Acetate Trihydrate have different molecular weights and water contents. Using the wrong molecular form in formulation calculations can result in an incorrect active-equivalent quantity.
For quality control, important parameters can include identification, assay, loss on drying or water content, pH of an aqueous solution, insoluble matter, heavy metals and other relevant impurities. Exact limits should correspond to the grade and specification supplied rather than being assumed as universal cosmetic limits.
Sodium Acetate is readily soluble in water, making aqueous incorporation practical. However, compatibility with other formulation components, final pH, ionic strength, preservation system and product stability should be evaluated during formulation development.
Sodium Acetate is an important specialty ingredient for manufacturers developing cosmetic and personal-care formulations requiring buffering and formulation-support properties. A reliable Sodium Acetate Cosmetic Ingredient Manufacturer in India can provide material with defined chemical identity, controlled quality characteristics and documentation suitable for formulation and quality-control requirements.
As a Sodium Acetate manufacturer and supplier in India, Swapnroop can support requirements for cosmetic raw materials and bulk ingredient sourcing. Product specifications should be selected according to the required hydration state, intended application, analytical requirements and customer quality standards.
For manufacturers, formulators and procurement teams, consistent documentation and clearly defined specifications are important when selecting Sodium Acetate for commercial formulation development.
| Parameter | Specification |
|---|---|
| Appearance | White or colourless crystals / white powder |