Tetraethylsilane 97% Minimum Procurement Specs & Data
Defining Tetraethylsilane 97% Minimum Procurement Specs and Quality Assurance
Procurement of Tetraethylsilane (CAS: 631-36-7) for industrial organic synthesis requires strict adherence to physical constants and chromatographic purity limits. The standard specification for reagent grade material dictates a minimum assay of 97% as determined by Gas Chromatography (GC). Deviations in boiling point or refractive index often indicate the presence of triethylsilane or other ethylsilane byproducts resulting from incomplete alkylation during the manufacturing process.
When evaluating batch consistency, procurement managers must verify the linear formula Si(C2H5)4 and molecular weight of 144.33 g/mol. The following table outlines the critical parameters that define acceptable quality for bulk Tetraethylsilane organic synthesis reagent compared to typical industrial grades.
| Parameter | Standard Specification (97% Min) | Typical Industrial Grade | Analysis Method |
|---|---|---|---|
| Assay (Purity) | ≥ 97.0% | 90% - 95% | GC (Gas Chromatography) |
| Boiling Point | 153.0°C to 154.0°C | 150.0°C to 155.0°C | Distillation / ASTM D86 |
| Density (20°C) | 0.7600 g/mL ± 0.005 | 0.7500 g/mL ± 0.010 | Pychnometry |
| Refractive Index (20°C) | 1.4250 to 1.4280 | 1.4200 to 1.4300 | Refractometry |
| Flash Point | 26°C | 25°C - 30°C | Pensky-Martens Closed Cup |
| Moisture Content | < 0.1% | < 0.5% | Karl Fischer Titration |
Maintaining a refractive index within the 1.4250 to 1.4280 range is critical for ensuring the structural integrity of the silane backbone. Variations outside this window suggest contamination with lower molecular weight Silane variants. For applications requiring pharmaceutical intermediates, adherence to the Tetraethylsilane synthesis route for pharmaceutical grade purity guidelines is essential to minimize heavy metal residues and ensure consistent reaction kinetics in downstream coupling processes.
Regulatory Compliance and Safety Handling Protocols for Tetraethylsilane 97%
Safety handling protocols for Tetraethylsilane are governed by its classification as a flammable liquid and vapor. The material carries a GHS Signal Word of "Warning" and requires specific storage conditions to prevent degradation or hazardous incidents. The flash point of 26°C classifies it as a Category 3 flammable liquid, necessitating storage in cool, well-ventilated areas away from heat sources, sparks, and open flames.
Personal protective equipment (PPE) must include chemical-resistant gloves and safety eyewear, as the substance causes skin and serious eye irritation. In the event of contact, immediate washing with plenty of soap and water is required. Inhalation risks are managed through adequate ventilation or respiratory protection in confined spaces. While regulatory frameworks vary by region, suppliers must provide comprehensive Safety Data Sheets (SDS) that detail hazard statements and precautionary measures without relying on unverified compliance claims.
Storage stability is enhanced when the chemical is Argon charged to prevent oxidation or moisture ingress. Moisture sensitivity can lead to hydrolysis, forming silanols and ethanol, which compromises the industrial purity required for sensitive catalytic reactions. Procurement specifications should explicitly mandate Argon-blanketed packaging for long-term storage stability.
Evaluating Supply Chain Stability and Bulk Procurement Options for Tetraethylsilane
Supply chain stability for organosilicon reagents depends on the manufacturer's capacity for bulk synthesis and raw material sourcing. Fluctuations in ethyl chloride or silicon metal availability can impact lead times. Reliable suppliers maintain inventory buffers to ensure fast shipping capabilities even during market constraints. Bulk procurement options typically range from glass bottles for laboratory scale to steel drums for industrial manufacturing.
For companies seeking alternatives to established European brands, verifying the chemical equivalence is vital. NINGBO INNO PHARMCHEM CO.,LTD. provides detailed batch data to confirm that their material serves as a viable Drop-in replacement for Dynasylan TES Tetraethylsilane in existing formulations. This ensures that switching suppliers does not require re-validation of the entire manufacturing process, provided the GC profiles match.
Lead times for bulk orders should be confirmed prior to contract signing. Standard lead times for specialized organosilicon compounds can vary from 5 days for stock items to several weeks for custom synthesis runs. Procurement contracts should include clauses for penalty-free cancellation if the Certificate of Analysis (COA) fails to meet the agreed-upon purity thresholds upon arrival.
Supplier Verification and Audit Requirements for Tetraethylsilane 97% Sourcing
Supplier verification extends beyond price comparison to include audit rights and quality management system validation. Procurement teams should request historical COA data to assess batch-to-batch consistency over a 12-month period. Key metrics to audit include the consistency of the boiling point range and the absence of unexpected peaks in the GC chromatogram.
Verification protocols should also confirm the manufacturing process controls. This includes checking if the supplier utilizes fractional distillation to achieve the 97% minimum purity specification. Suppliers capable of providing raw GC-MS data alongside the standard COA demonstrate higher transparency and confidence in their quality control laboratories. This level of documentation is crucial for industries where traceability is mandated.
Financial stability and export licensing are also part of the verification process. A global manufacturer should possess the necessary documentation to export hazardous chemicals without customs delays. Audits should verify that the supplier maintains appropriate insurance coverage for hazardous material storage and transport liability.
Hazardous Material Shipping and Logistics for Tetraethylsilane 97% Procurement
Logistics for Tetraethylsilane require compliance with international hazardous material shipping regulations. As a flammable liquid, it must be packaged in UN-certified containers suitable for Group II or III packing depending on the specific jurisdiction's transport codes. Ground, air, and sea freight options all require specific declarations and hazard labels.
Shipping documentation must accurately reflect the proper shipping name and UN number. Delays often occur when documentation mismatches the physical hazard class of the cargo. Efficient logistics partners ensure that all customs declarations align with the SDS provided by the manufacturer. Temperature control during transit may be required in extreme climates to prevent pressure buildup within sealed containers.
Upon receipt, immediate inspection of the packaging integrity is recommended. Any signs of leakage or container deformation should be reported immediately to the carrier and the supplier. Proper inventory management systems should track the batch number and receipt date to ensure first-in-first-out (FIFO) usage, minimizing the risk of using aged material that may have degraded due to seal failure.
To request a batch-specific COA, SDS, or secure a bulk pricing quote, please contact our technical sales team.