
Sodium Benzenesulfinate at a Glance
Sodium benzenesulfinate, CAS 873-55-2, is an aromatic sulfinate salt also known as BSS. It is supplied as white flake crystals for industrial electroplating additive formulation and selected organic synthesis. The formula is C6H5NaO2S and molecular weight is 164.15 g/mol. Supply specification: Content 98.0–99.9%. ZXCHEM supplies this material from China in 25 kg bags.
Request a free sample for testing.
Standard lead time is approximately 14 days from order confirmation.
Sodium Benzenesulfinate Specifications
Grade-specific supply limits. The agreed specification and batch COA govern delivery.
Commercial Information
Storage & Shipping
Storage Conditions
Keep bags sealed in a cool, dry, ventilated area away from strong oxidizers and excessive heat. Protect liners from moisture and contamination.
Packaging Integrity
Inspect bag seams, liners and pallet wrap for damage or moisture. Keep lot labels legible, use dedicated dry tools and reseal opened liners promptly.
Packaging
25 kg bags
Handling & Protection
Provide effective ventilation during powder transfer. Wear suitable protective gloves, safety goggles and work clothing. Avoid airborne dust, ingestion and unnecessary skin or eye contact.
What Is Sodium Benzenesulfinate?
Sodium benzenesulfinate, CAS 873-55-2, is an aromatic sulfinate salt also known as BSS. ZXCHEM supplies white flake crystals for industrial electroplating additive formulation and selected organic synthesis. The formula is C6H5NaO2S and molecular weight is 164.15 g/mol.
The local supply specification lists content 98.0–99.9%, pH 6.5–7.5, loss on drying ≤20%, chloride ≤0.5% and sulfate ≤0.2%. Keep the content and drying limits on their original analytical basis when comparing a batch COA; the document does not identify an alternative calculation basis.
Electroplating developers evaluate sodium benzenesulfinate with the complete nickel brightener package. Chemical developers also use aromatic sulfinates in selected sulfone and related synthetic routes. Establish bath concentration, reaction conditions and compatibility through qualified trials rather than assuming one universal dose.
Standard packing follows the local TDS: 25 kg bags. Keep sealed, dry and cool, separate from strong oxidizers and excessive heat. The matched crystalline reference is non-dangerous goods for road, sea and air transport; dust and direct contact still require appropriate industrial hygiene.
Browse related surface treatment chemicals in our catalog.
Sodium Benzenesulfinate Applications
Nickel plating brightener systems
Aromatic sulfinate component for qualified nickel electroplating additive packages. Assess bath compatibility, deposit appearance and analytical control.
Sulfone synthesis development
Sulfinate reagent for selected organic synthesis routes. Evaluate substrate compatibility, reaction conditions and the required raw-material specification.
Industrial additive concentrates
Raw material for technically supervised plating and chemical additive concentrates. Assess dissolution, blend compatibility and storage stability.
Why Source Sodium Benzenesulfinate from ZXCHEM
One-stop Chemical Sourcing
Source several chemical raw materials through one ZXCHEM contact. We coordinate product selection, quotations and suitable consolidated shipments so you can plan the order with one team.
Dedicated R&Q Laboratory
Discuss specifications, sample results and application questions with our technical team. Our dedicated R&Q laboratory supports product testing and helps clarify material selection.
Experienced Chemical Logistics
ZXCHEM has more than 30 years of experience in dangerous-goods transportation. We coordinate suitable shipments through logistics companies in which we hold equity interests in Qingdao, Shanghai, Guangzhou and Tianjin.
Dedicated Purchasing Support
Your account manager follows the order from quotation and contract signing through shipment and after-sales support. One contact coordinates technical documents, commercial details and delivery updates.
Sodium Benzenesulfinate FAQ
Which Sodium Benzenesulfinate grade should I choose?
Compare Content 98.0–99.9% against your process requirements. Check the TDS for assay and impurity limits, then test a sample for compatibility and performance in your process.
Can I request a Sodium Benzenesulfinate sample for testing?
Request a free sample for testing. Tell us the intended BSS application, preferred grade and the tests you plan to perform, so that we can arrange a suitable evaluation sample and technical information.
How is Sodium Benzenesulfinate packed and shipped?
Standard packing is 25 kg bags. The usual MOQ is 1,000 kg, with a lead time of approximately 14 days from order confirmation. The reference bulk transport classification is Non-dangerous goods.
Which documents are available for Sodium Benzenesulfinate?
The TDS covers supply specifications; the reference SDS covers safety and transport. Both can be downloaded on this page. A batch COA can be provided with supply. Request documents for the grade and physical form you are ordering.
Request a Sodium Benzenesulfinate Quotation
Tell us the required grade, quantity, destination port and documents. We reply within 24 hours.
We use your details to respond to this enquiry. You can also contact sales@zxchem.com.cn.




