Bulk Supply of Premium Triethoxysilane (CAS 998-30-1): The Ultimate B2B Sourcing Guide Direct from Primary Manufacturer

Triethoxysilane
CAS 998-30-1

Triethoxysilane CAS 998-30-1 Supplier

  • Payment: L/C,T/T,D/P,Paypal,Money Gram,Western Union
  • Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
  • Delivery: 7 Days
  • Transporta: Ocean, Land,Air, DHL,TNT
  • Port: Shanghai Port, Qingdao Port

Name: Triethoxysilane

CAS: 998-30-1

Purity: 99%min

MOQ: 1KG

Directory Guidance on Triethoxysilane CAS 998-30-1

Chemical Structure

Triethoxysilane CAS 998-30-1   Chemical Structure

Basic Chemical Info

Our commercial-grade Triethoxysilane (CAS 999-97-3) is manufactured via an automated, solvent-recovered pathway, yielding a water-white, low-viscosity clear liquid with a distinct, pungent ester-like odor. We strictly regulate the presence of unreacted trichlorosilane and trace free hydrochloric acid (HCl) to guarantee perfect chemical compliance and stable reaction kinetics in your downstream processes.
  • Chemical Name: Triethoxysilane / Hydrogentriethoxysilane / TES
  • CAS Number: 999-97-3
  • EINECS Number: 213-668-5
  • Molecular Formula:
    𝐶6𝐻16𝑂3𝑆𝑖

  • Molecular Weight: 164.28 g/mol
  • Standard Assay (Purity via GC):
    ≥98.5%(Standard Industrial Grade) or ≥99.0%

    (Premium Electronic & Fine Chemical Grade)

  • Free Chloride Content:
    ≤10ppm (Strictly managed to prevent premature self-condensation or equipment corrosion)

  • Refractive Index (n20Dn sub 20 to the cap D-th power
    𝑛𝐷20): 1.387 – 1.390

  • Flash Point (Closed Cup): 26°C (78.8°F)

Introduction to Triethoxysilane CAS 998-30-1

Triethoxysilane CAS998-30-1, often designated as TES or Hydrogentriethoxysilane, stands as a vital functional silane building block. Featuring a highly reactive silicon-hydrogen (Si-H) bond alongside three hydrolyzable ethoxy groups, it serves as the irreplaceable starting material for hydrosilylation reactions and hydrosilicone modification loops.
Because hydrogen-functional silanes are highly sensitive to trace moisture and can generate flammable hydrogen gas if exposed to inappropriate conditions, sourcing from a tier-2 broker or an uncertified trader introduces high risks of product degradation, gelation, and storage hazards. You need a direct primary synthesis plant that controls the chlorosilane alcoholysis kinetics, trace organic acidity, and specialized vacuum-packaging parameters from the initial distillation cut to your blending floor. This comprehensive B2B technical guide details our structural synthesis benchmarks, factory infrastructure, and global hazardous cargo logistics control.

Advanced Production Technology

The primary technical bottleneck in manufacturing CAS 998-30-1 is the strict suppression of hydrogen gas evolution during the esterification process and the elimination of residual hydrochloric acid. Residual acid acts as a natural catalyst for the self-condensation of the silane, reducing active purity and creating a gel mass. Our plant deploys a modern continuous-flow processing setup:
 Triethoxysilane CAS 998-30-1

Triethoxysilane CAS 998-30-1

Controlled Anhydrous Alcoholysis Process: We react high-purity trichlorosilane (TCS) with anhydrous ethanol under an automated continuous-feed system. The reaction is run inside automated loop reactors utilizing custom-engineered vacuum stripping lines to instantly pull out the byproduct hydrogen chloride gas.

Multi-Stage High-Vacuum Fractionation: Traditional batch atmospheric distillation subjects functional silanes to prolonged thermal stress, triggering disproportionation reactions (which can form hazardous, pyrophoric silane gas). Our plant utilizes multi-stage high-vacuum fractionating columns operating at low temperatures. Short contact times preserve the exact structural integrity of the Si-H bond.

Anhydrous Nitrogen Padding Loop: The entire purification, cooling, and drumming sequence operates inside fully enclosed, stainless steel (SUS316L) configurations under a continuous positive-pressure shroud of ultra-dry nitrogen (moisture ≤3 ppm).

Technical Edge: Primary Synthesis Plant vs. Trading Brokers

Technical Edge: Primary Synthesis Plant vs. Trading Brokers
Critical Operational MetricStandard Tier-2 Trading BrokersOur Primary Synthesis PlantImpact on Downstream Batches
Si-H Bond StabilityFluctuating hydrosilylation conversion rates due to active decomposition in the drum.100% active Si-H bond retention via strict moisture exclusion.Yields highly predictable conversion rates when synthesizing functional silicone fluids or coupling agents.
Residual Free ChlorideOften
>50
ppm
, indicating high acidity and severe self-condensation risks.
Maintained strictly
≤10
ppm
via continuous vacuum degassing.
Prevents color shifts or catalytic breakdown while eliminating acid corrosion on your reactor walls.
Color Index Across StorageSubject to amber or cloudy tinting over short-term warehousing due to moisture ingress.Consistently water-white clear (
≤10
APHA
across lots).
Guarantees your final structural sealants or electronic coatings remain transparent and clear.
Disproportionation SafetyHigh risk of trace catalyst residues that trigger hazardous silane gas buildup in drums.Processed via custom Hastelloy and SUS316L lines to eliminate active metals.Eliminates drum bulging or over-pressurization risks during cross-border transit.

Plant Infrastructure & Scalable Production Capacities

We actively protect international chemical supply chains and contract manufacturing houses from sudden raw material shocks and environmental compliance restrictions:
  • Annual Plant Throughput: Our dedicated fractionating and organic silane synthesis lines yield up to 2,000 Metric Tons of Triethoxysilane annually.
  • Silo Bulk Reserves: We operate a centralized bulk storage terminal equipped with automated nitrogen padding and real-time gas monitoring systems, maintaining a rolling buffer stock of 20 to 50 tons to fulfill urgent air or ocean freight orders.
  • Comprehensive Regulatory Passports: Our facility operates in full alignment with ISO 9001 (Quality Management) and ISO 14001 (Environmental Safety). We offer full support for international client audits (On-site or via secure remote video validation).

 Quality Control and Warehousing Infrastructure 

Finished Product Quality Control

✅ Comprehensive quality control for every shipment prior to dispatch
✅Complete batch traceability system

Testing equipment

✅ In-house quality control laboratory
✅ Qualified personnel and a full range of testing equipment

Warehouse Facilities

✅ Finished goods warehouse: 300 m²
✅ Storage tank capacity: 50 tonnes
✅ Storage temperature range: 15–25°C
✅ Explosion-proof and anti-static design

sdlookchem Patent Certificate

Quality control documents provided with each batch партией

✅ COA (Certificate of Analysis)
✅ SDS (Safety Data Sheet)
✅ Certificate of Origin
✅ Packing List / Commercial Invoice

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Technical Support & Analytical Warranties

Our commercial responsibility remains fully active after your cargo leaves our loading docks:

Analytical Retain Archive (36-Month Protocol): Sealed control samples from every single dispatched batch are stored in our specialized vault under argon. If your production line faces any processing variations, our technicians can evaluate the retain sample immediately to guide your technical team.

Hydrosilylation Process Consulting: Our R&D team provides comprehensive technical data on molar balancing, temperature control, and platinum catalyst selection to optimize the efficiency of your synthesis loops when utilizing our TES.

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