Sodium borohydride PubChem serves as a vital reference hub for chemists, process engineers, and safety professionals seeking reliable data on this versatile reducing agent. The platform consolidates experimental measurements, hazard information, and regulatory details into a single record that supports informed decision making in research and manufacturing.
From handling precautions to reactivity profile, the sodium borohydride PubChem entry emphasizes practical guidance for laboratory and industrial environments. This structured overview highlights key identifiers, safety metrics, and analytical data that users frequently consult when assessing risk and utility.
| Property | Value | Source / Note | Relevance |
|---|---|---|---|
| Common Name | Sodium borohydride | PubChem | Standard nomenclature used in safety data sheets |
| CAS Registry Number | 16940-66-2 | PubChem | Unique identifier for regulatory and inventory tracking |
| Molecular Formula | NaBH4 | PubChem | Defines stoichiometry for reduction reactions |
| Molar Mass | 37.83 g/mol | PubChem | Used in dosing and stoichiometric calculations |
| Physical State | White to gray crystalline powder | PubChem, SDS | Inferences for storage, dispersion, and handling |
| Hazard Statements | H228, H315, H319, H335 | GHS classifications on PubChem | Guides labeling, PPE, and emergency response |
| Storage Conditions | Cool, dry, well-ventilated; away from acids and oxidizers | Safety data and regulatory guidance | Critical to prevent dangerous decomposition |
| Major Applications | {"0": "Pharmaceutical synthesis", "1": "Fine chemical reduction", "2": "Polymer modification", "3": "Biological assay reagent"}Literature, industry sources, PubChem links | Context for demand and handling protocols |
Physical And Chemical Properties Relevant To Handling
Intrinsic Characteristics And Stability
The intrinsic properties of sodium borohydride define how it behaves under processing conditions. Its appearance as a white to gray crystalline powder facilitates visual inspection for contamination. The compound is hygroscopic and can release flammable hydrogen gas upon contact with water or acids, which is why PubChem underlines strict moisture control and segregated storage.
Hazard Identification And Risk Management
GHS Classification And Operational Controls
PubChem aligns with global harmonized system data to detail flammable solid and skin corrosion hazards associated with sodium borohydride. Recommended controls include explosion-proof ventilation, grounding of equipment, and spill kits designed for reactive chemicals. Users rely on these signals to update site-specific procedures and training modules.
Analytical Methods And Quality Assessment
Testing Protocols And Specification Limits
Reliable assays for sodium borohydride often involve iodometric titration or spectroscopic methods to verify purity and moisture content. Specification limits on the PubChem record help laboratories set acceptance criteria for incoming material. Consistent testing supports batch-to-batch consistency in downstream syntheses.
Environmental And Regulatory Considerations
Transport Rules And Waste Handling
Regulatory frameworks classify sodium borohydride as a dangerous good due to its reactivity, and the PubChem entry references transport indices and disposal guidelines. Facilities must coordinate with licensed waste handlers to manage borates and residual hydrides. Compliance documentation ties directly to safe inventory management and site risk assessments.
Key Takeaways For Safe Use And Storage
- Assign a dedicated, corrosion-resistant storage cabinet away from acids and oxidizers.
- Implement strict moisture controls and conduct regular container integrity checks.
- Equip areas with explosion-proof ventilation and grounding systems for drums and reactors.
- Train personnel on hydrogen gas release hazards and emergency response procedures.
- Verify purity through scheduled analytical testing against published specification limits.
- Maintain up-to-date safety data sheets and ensure GHS labeling consistency across sites.
- Plan waste streams in advance to facilitate compliant disposal by licensed contractors.
FAQ
Reader questions
Why is the CAS number 16940-66-2 important for sodium borohydride?
The CAS number provides a unique identifier that removes ambiguity in regulatory submissions, safety data sheets, and inventory systems, ensuring that sodium borohydride is tracked consistently across databases and compliance workflows.
What are the main hazards listed for sodium borohydride on PubChem?
Primary hazards include flammability as a solid, corrosiveness to skin and eyes, and the generation of flammable hydrogen gas upon contact with water or acids, which drives specific storage and handling controls.
Which analytical methods are commonly used to assess sodium borohydride purity?
Iodometric titration and spectroscopic techniques are frequently applied to determine purity and moisture content, allowing laboratories to verify compliance with specification limits before use in sensitive reactions.
How should sodium borohydride waste be managed to comply with regulations?
Waste sodium borohydride must be handled by licensed hazardous waste contractors, neutralized or stabilized when feasible, and documented according to transport and disposal regulations to protect personnel and the environment.