Fluoboric Acid (HBF₄) — Factory-Direct

Synonyms: Fluoroboric acid, Tetrafluoroboric acid
Molecular formula: HBF₄ · xH₂O (aqueous solution) CAS: 16872-11-0

Product Overview

Fluoboric Acid is a strong inorganic acid widely used for metal activation/pickling and electroplating (as the acid component of tin/lead/other fluoroborate baths). Supplied from our own plant in Shandong, China, all offers are factory-direct prices with stable batch-to-batch quality and full export documentation.

Key Benefits

• High conductivity and stable acidity for fluoroborate plating baths

• Fast activation of copper, brass and steel surfaces before coating

• Low residue after rinsing; compatible with common pretreatment lines

• Factory-backed QC (retained samples; COA with every lot)

Typical Applications

• Acid component in fluoroborate electroplating (e.g., tin/lead fluoroborate)

• Metal pickling/activation prior to plating or conversion coating

• Catalyst/acidifier in selected industrial syntheses (industrial use only)

Grades & Typical Specs

• 40% w/w aqueous solution (standard)

• 50% w/w aqueous solution (high-strength)

• Appearance: clear, colorless to light-yellow liquid

• Heavy metals and sulfate controlled per order spec (COA provided)
  (Target specifications can be aligned to your process—request our TDS.)

Compliance & Handling

• UN 1775, IMDG Class 8 (Corrosive), PG II

• GHS/CLP corrosive; avoid contact with skin/eyes and reactive metals

• Use acid-resistant PPE, local exhaust ventilation; rinse tools with plenty of water

• Do not mix with cyanides, sulfides, strong bases, or oxidizers

Packaging & Logistics

• 25 kg / 250 kg HDPE drums; 1000 L IBC (lined)

• Palletized export packing; tamper-evident seals

• Incoterms: FOB / CFR / CIF (marine insurance available)

• Lead time: typically 5–7 working days ex-plant

Storage & Shelf Life

• Store in a cool, dry, ventilated area away from alkalis, metals and moisture

• Keep in original closed container; recommended shelf life 12 months

Trade & Documents

• Documents: MSDS/TDS, COA, IMDG/Non-DG assessment, GHS labels, Certificate of Origin

• Payment: T/T in advance (first cooperation)

• HS Code (reference): 2811.19 (Inorganic acids, other)