Imagine a food processing plant evaluating the use of sodium hexametaphosphate to enhance product water retention and texture. While pursuing technical benefits, potential safety risks and compliance requirements remain critical considerations that could lead to serious production incidents or legal disputes if overlooked. This analysis examines the Safety Data Sheet (SDS) for sodium hexametaphosphate to provide a complete understanding of its properties, hazards, emergency procedures, and compliance strategies.
The SDS clearly identifies the product as sodium hexametaphosphate (CAS 68915-31-1), manufactured by Aldrich and supplied by Sigma-Aldrich Israel Ltd. with complete contact details. While the REACH registration number isn't provided due to exemption or tonnage requirements, this information ensures quick access to technical support during emergencies.
- Product Identification: The CAS number serves as a unique chemical identifier.
- Supplier Accountability: Detailed supplier information enables quality tracing and accident liability determination.
According to EU Regulation (EC) No. 1272/2008, sodium hexametaphosphate isn't classified as hazardous. The SDS confirms it contains no persistent, bioaccumulative, and toxic (PBT) components nor endocrine disruptors.
- Regulatory Compliance: Meets EU safety standards.
- Environmental Safety: No long-term environmental risks from PBT/vPvB substances.
The product contains sodium hexametaphosphate (also known as Calgon or polyphosphate glass) without additional concerning components, as confirmed by applicable regulations.
The SDS provides specific first aid instructions:
- Inhalation: Move to fresh air immediately
- Skin Contact: Remove contaminated clothing and rinse with water
- Eye Contact: Flush with plenty of water and remove contact lenses
- Ingestion: Drink water and consult a physician
While non-flammable, sodium hexametaphosphate may release harmful gases in fire conditions. Firefighters should prevent water runoff contamination.
For spills:
- Prevent dust inhalation
- Block drainage systems
- Collect and contain spillage using dry methods
- Thoroughly clean affected areas
Store in dry, sealed containers. Classified as non-flammable solid (TRGS 510:13).
Recommended protective equipment:
- NIOSH/EN 166 certified eye protection
- CE-certified gloves (e.g., Dermatril® L)
- P1 respirators in dusty environments
Key characteristics:
- Physical state: Crystalline solid
- Melting point: 628°C
- Water solubility: High
- Flammability: None
Chemically stable under normal conditions. Avoid strong oxidizers. May produce hazardous decomposition products in fires.
Toxicity data:
- Oral LD50 (rat): 3,053 mg/kg
- Dermal LD50 (rabbit): >7,940 mg/kg
- Mild eye and skin irritation
No significant environmental hazards identified. Not classified as PBT/vPvB or endocrine disruptor.
Follow applicable waste regulations.
Not classified as dangerous goods for transport.
Complies with EU Regulation (EC) No. 1907/2006 (REACH). No chemical safety assessment conducted.
This comprehensive analysis of sodium hexametaphosphate's SDS provides essential information for safe industrial application. Understanding these safety parameters enables proper risk management while maintaining compliance with environmental and workplace safety standards.