The foundational fluoroborate acid used in preparation of metal fluoborate plating baths, as a catalyst in organic synthesis (Balz-Schiemann reaction), and in metal surface treatment. Our technical grade serves electroplating and industrial applications.

| Concentration | 40–48% |
| Appearance | Clear liquid |
| Specific Gravity | 1.30–1.37 |
| IUPAC Name | Tetrafluoroboric acid |
| Molecular Weight | 87.81 g/mol |
| Typical Purity | 40%, 42%, 48% w/w solutions |
| Grades Available | Technical 40% / Industrial 48% / LR 48% / AR 48% |
| HS Code (Export) | 28111990 |
| SB Chemicals SKU | SBF-1056 |
Fluxes, bath additives, grain refiners for primary and secondary aluminium production
Plating baths, surface treatment, conversion coatings for diverse metal substrates
Flux formulations for aluminium brazing, soldering, and welding electrode coatings
Fluorination reagents, catalysts, and high-purity lab chemicals
Independent verification of Fluoboric Acid 40–48% on third-party scientific databases:
Standard concentrations are 40%, 42%, and 48% w/w HBF₄ in water. Technical / industrial grades are supplied in 25 / 50 / 250 kg HDPE-lined drums and 1000 L IBC totes. LR and AR lab grades are bottled in 1 L and 2.5 L HDPE bottles. Stabilised, low-free-fluoride (< 0.2%) variants are available for electronics use.
Industrial 48% HBF₄ contains free HF < 1.0% as standard; low-HF grade (< 0.2%) is available for sensitive electroplating baths. Free B(OH)₃ is < 1.0%, sulphate < 0.05%, chloride < 0.05%, and Fe < 5 ppm.
Yes — UN 1775, Class 8 (corrosive), Packing Group II. We ship only in HDPE-lined or PE-extrusion HDPE drums and IBC totes that are independently UN-certified for Class 8 PG II. Steel drums are not permitted.
Fluoboric Acid 40–48% is supplied in HDPE woven bags with inner LDPE liner (25 kg / 50 kg net), HDPE drums (25 / 50 / 250 kg), and FIBC jumbo bags (500 / 1000 kg) for solid grades. Liquid grades ship in HDPE-lined steel drums (250 kg) or 1000 L IBC totes. Custom packaging — including nitrogen-blanketed, moisture-tight, or food-grade containers — is available on request.
Standard MOQ is 1 metric tonne for solid grades and 200 kg for liquid grades; pilot quantities of 5–25 kg are available for R&D qualification. Stock items dispatch within 7–10 working days from confirmed PO. Made-to-order grades and large export consignments require 3–4 weeks. Indian deliveries by road typically reach 4–7 days; export FCL shipments depend on destination port.
Yes. A 16-section GHS-format SDS is dispatched with every shipment and is also available in advance from marketing@sbfluorochem.com. A batch-specific COA accompanies every consignment and is emailed before dispatch for goods-receipt verification. Test methods follow IS / ASTM / USP / IP / EP as applicable.
SB Chemicals exports to over 35 countries across South-East Asia, the Middle East, Africa, Europe, and the Americas. We hold IEC, GST, and APEDA registrations. Shipments move CIF / FOB / CFR / FCA / EXW from Mundra, Nhava Sheva (JNPT), or Hazira ports. Letter of Credit (LC), TT, and DA terms are accepted subject to credit approval.
Yes. SB Chemicals operates an ISO 9001:2015 certified Quality Management System at the GIDC Vapi facility. Every batch undergoes raw-material testing, in-process control, and final QC release before despatch. Clients are welcome to schedule a third-party audit of the plant.