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Sodium bifluoride

CAS Number
1333-83-1
EC Number
215-608-3
Chemical Formula
F2H.Na
Molecular Weight
61.9946 g/mol

Description

Sodium bifluoride ( CAS 1333-83-1 ), also sold as sodium acid fluoride, is an inorganic fluoride salt used industrially as a pH buffer, mild acidic flux, and surface treatment agent. Its controlled fluoride release makes it effective for etching, cleaning, and corrosion inhibition across metal, mineral, and textile processing operations. In metal finishing and mining, it functions as a pickling agent. The compound is essential for removing oxide scale and preparing metal surfaces prior to coating or further processing. Textile and leather processors use it to adjust bath pH and improve dye uptake uniformity. During fabric treatment, it ensures consistency across batches. In building and construction, it is applied to concrete and masonry surfaces as a hardening and anti-efflorescence treatment for long-term durability. Water treatment operations use it as a source of fluoride ions for controlled dosing and pH correction in industrial effluent streams. This versatility makes it a staple in chemical manufacturing and environmental management. The product is supplied as a white crystalline powder or granules. Technical grade is the standard commercial form, with purity levels typically at 98% or higher to meet rigorous industrial specifications. Packaging ranges from small bags to bulk quantities, suited to both laboratory-scale and large industrial procurement requirements. We ensure consistent quality and reliable supply chains for all global shipping needs. Contact us for supply of Sodium bifluoride Request Quote

Other Names (Synonyms)

SODIUM HYDROGEN DIFLUORIDE | Sodium acid fluoride | Sodium hydrogen fluoride | Caswell No. 747A | SODIUM DIFLUORIDE | Fluoruro acido de sodio | Sodium fluoride (Na(HF2))

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point>68 °C (dec.)
Boiling Point270°C[at 101 325 Pa]
Density2.08 g/cm³
AppearanceWhite, crystalline powder.Sol- uble in water
decomposes on heating.
Colorwhite hexagonal, hexane crystals, crystalline
Formpellets
Water Solubilityg/100g solution in H2O: 3.7 (20°C), 16.4 (80°C) [KIR78]
Vapor Pressure0.01Pa at 20℃
Log P1.26 at 20℃

Safety & Handling

Danger
GHS05· CorrosiveGHS06· ToxicGHS08· Health Hazard

Hazard Statements

H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure

Precautionary Statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P316Get emergency medical help immediately.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code2826199090
UN Number2439
ADR Class8
Packing GroupII
Storage Class6.1D - Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects
WGK (Germany)1