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  • Sodium Tert-Butoxide(STB)
  • Sodium Tert-Butoxide(STB)
  • Sodium Tert-Butoxide(STB)
  • Sodium Tert-Butoxide(STB)

Sodium Tert-Butoxide(STB)

Sodium tert-butylate (STB, C₄H₉ONa) is a white crystalline solid that readily absorbs moisture, decomposes upon contact with water, and dissolves in organic solvents. It is produced by reacting tert-butanol with metallic sodium or sodium hydroxide. Commonly used as a strong base catalyst in organic synthesis, it is also employed in the synthesis of pharmaceutical intermediates. Store in a sealed container in a cool, dry place to prevent moisture absorption. Wear appropriate protective gear during handling.
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Product Parameters

Index NameIndexPacking standard
Total alkali≥99%Cardboard drum:25kg
Galvanized steel drum:100kg
Free alkali≤1%
Molecular formulaC4H₉ONa
Molecular weight96.1
Appearanceoff-white granule
CAS No.865-48-5

Basic Properties

1. Chemical Properties

  • Strong Basicity: Sodium tert-butylate is a potent organic base, exhibiting significantly greater basicity (pKa of t-BuOH ~ 17) than inorganic bases such as sodium hydroxide and potassium hydroxide. This stems from the relatively weak acidity of its conjugate acid (tert-butanol) and the substantial steric hindrance imposed by the bulky tert-butyl group, which favors proton abstraction over nucleophilic substitution reactions.

  • Chemical Formula: C₄H₉ONa or (CH₃)₃CONa

  • Steric Effect: The bulky tert-butyl group in its molecule confers high regioselectivity and stereoselectivity during reactions, effectively preventing undesirable side reactions such as overalkylation.


2. Physical Properties

  • Appearance: Typically a white or off-white powder, sometimes supplied as a solution (commonly in solvents like n-hexane or tert-butanol).

  • Hygroscopicity: Highly hygroscopic, rapidly absorbs moisture and carbon dioxide from the air, forming tert-butanol and sodium carbonate, leading to degradation and loss of efficacy.

  • Thermal Stability: Relatively stable to heat but may decompose at elevated temperatures.

  • Solubility: Soluble in alcohols (e.g., methanol, ethanol) and certain hydrocarbon solvents; reacts violently in water.

Main Applications

  • Pharmaceutical Industry: Sodium tert-butylate serves as a key reagent for constructing complex molecular frameworks in drug synthesis.

  • Organic Synthesis and Fine Chemicals: It functions as a universal strong base in fundamental research and fine chemical production.

  • Polymer Industry: Sodium tert-butylate acts as an efficient catalyst and initiator in polymerization reactions.

Safety Precautions

  • Hazard: Sodium tert-butylate is a flammable solid and highly sensitive to moisture and humidity. It reacts violently with water, releasing significant heat and potentially causing combustion.

  • Corrosivity: Highly corrosive and irritating to skin, eyes, and respiratory tract.

  • Storage Conditions: Must be stored sealed under an inert gas atmosphere (e.g., argon or nitrogen) in a cool, dry, well-ventilated area, away from sources of ignition and water.

Company Profile

Junteng Chemical is a professional chemical raw materials trading company dedicated to providing customers with one-stop procurement services. Through strict supplier, supply chain, and after-sales management, the company ensures that product quality, transportation, and use meet customer needs. Furthermore, the company's technical team offers customized solutions and support services free of charge.

 

The company has projects in the pharmaceutical, pesticide, petrochemical, construction, food additives, wastewater treatment, adhesives, inks, paints, coatings, plastic and rubber processing, detergent raw materials, fertilizer and textile mills, and more. Junteng Chemical sources products of stable and reliable quality, collaborating with domestic and international companies such as Luxi Group, Weiyuan Chemical, Qilu Petrochemical, Dongying Lihuayi, Yanshan Petrochemical, Sinopec, Shijiazhuang Refinery, Qingdao Petrochemical, Sailboat, Dow Chemical, BASF, South Korea, Taiwan, and Saudi Arabia. Our stable supply, superior product quality, and mature logistics have earned us a wide clientele. We look forward to collaborating with all of you for a mutually beneficial future.

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Company advantages

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One-Stop Procurement
Platform

We integrate resources across all productcategories, including organic solvents,resins and rubbers, and inorganicchemicals,and strictly control suppliers.supply chains, and after-sales processes toensure stable quality, efficienttransportation,and worry-free use,simplifying your procurement process.

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Professional Team TechnicalEmpowerment

Equipped with an experienced technicalteam, we provide free personalizedsolutions and professional technicalsupport to customers in varlous industrie,such as pharmaceuticals, petrochemicals,coatings and inks, and sewage treatment,.helping you solve problems and improveefficiency.

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Global supply ChainSecurity

We work with top domestic and foreignchemical giants such as Luxi Group, QiluPetrochemical, Sinopec, BASF of Germany,and Dow of the United States to establisha stable and reliable high-quality supplynetwork and a mature logistics system toensure timely and safe delivery of
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Adhering to the concept of "integrity.immediate action, professionalism,innovation and win-win" and taking"customer success and altruism" as ourmission, we are committed to establishinglong-term strategic partnerships andcreating a better future through excellentproducts and services.

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