Disodium;hydrogen phosphate;dodecahydrate

Disodium hydrogen phosphate dodecahydrate is an inorganic sodium salt of phosphoric acid containing twelve molecules of water of crystallization. With the molecular formula H25Na2O16P and CAS number 10039-32-4, this compound has a molar mass of 358.14 g/mol. It appears as colorless crystals and is highly soluble in water, making it valuable in various industrial applications where controlled pH buffering is required.

Disodium hydrogen phosphate dodecahydrate exists as colorless crystalline solid at room temperature with no characteristic odor. It demonstrates excellent water solubility, readily dissolving to form clear solutions. The compound is hygroscopic, meaning it absorbs moisture from air. Its dodecahydrate form makes it relatively stable under normal conditions, though it may lose water molecules when heated, converting to lower hydrate forms or anhydrous salt.

Disodium hydrogen phosphate dodecahydrate serves primarily as a buffering agent in chemical processes, maintaining stable pH levels in solutions. It finds extensive use in water treatment applications, food processing as a pH regulator, and in analytical chemistry for buffer preparation. The compound is also utilized in detergent formulations, textile processing, and as a corrosion inhibitor in industrial cooling systems due to its phosphate content.

Disodium hydrogen phosphate dodecahydrate requires standard laboratory safety practices during handling despite having no specific hazard classification. Wear appropriate personal protective equipment including safety glasses, gloves, and lab coats to prevent direct contact. Ensure adequate ventilation in work areas to minimize dust exposure. Avoid generating aerosols and wash hands thoroughly after handling. While not classified as dangerous, good industrial hygiene practices should always be followed.

Disodium hydrogen phosphate dodecahydrate should be stored in a cool, dry place away from direct sunlight in tightly sealed containers to prevent moisture absorption. Keep containers properly labeled and store away from strong acids and oxidizing agents. The storage area should maintain consistent temperature and humidity levels to preserve the dodecahydrate form. Ensure proper inventory rotation using first-in, first-out principles to maintain product quality.

Disodium hydrogen phosphate dodecahydrate contact requires immediate basic first aid measures. For skin contact, wash thoroughly with soap and water for at least 15 minutes. If eye contact occurs, flush immediately with clean water for 15-20 minutes and seek medical attention if irritation persists. In case of inhalation of dust, move to fresh air immediately. For ingestion, rinse mouth with water and seek medical advice if large quantities are consumed.

Disodium hydrogen phosphate dodecahydrate disposal must comply with local environmental regulations and waste management guidelines. Small quantities may be neutralized and disposed of through municipal wastewater systems where permitted. Larger quantities should be collected for professional waste disposal through licensed waste management companies. Never discharge directly into natural water bodies without proper treatment. Consult local authorities for specific disposal requirements in your region.

Disodium hydrogen phosphate dodecahydrate is not classified as dangerous goods under ADR regulations, simplifying its transport requirements. Standard packaging suitable for chemical products should be used, ensuring containers are properly sealed and labeled. While no special transport documentation is required, maintain proper handling procedures during loading and unloading. Protect packages from physical damage and extreme temperatures during transit to preserve product integrity.

Disodium hydrogen phosphate dodecahydrate falls under standard REACH registration requirements for chemical substances in the European Union. It is not classified as a Substance of Very High Concern (SVHC) and has no specific hazard classification under CLP regulation. Standard chemical handling and workplace safety regulations apply. Suppliers must provide Safety Data Sheets and ensure proper labeling according to current chemical legislation.

Disodium hydrogen phosphate dodecahydrate is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides reliable supply chains across Europe for industrial and professional customers. The company ensures proper documentation, quality standards, and regulatory compliance for all chemical products. Contact OYSI directly for specific quantities, technical specifications, and delivery options to meet your industrial requirements.