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HomeProduct name listSodium hydrogen difluoride

Sodium hydrogen difluoride

Synonym(s):Sodium acid fluoride;Sodium bifluoride

  • CAS NO.:1333-83-1
  • Empirical Formula: F2HNa
  • Molecular Weight: 61.99
  • MDL number: MFCD00003529
  • EINECS: 215-608-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-11-16 16:15:21
Sodium hydrogen difluoride Structural

What is Sodium hydrogen difluoride?

Chemical properties

White, crystalline powder.Sol- uble in water; decomposes on heating.

The Uses of Sodium hydrogen difluoride

As a "sour" in laundering.

The Uses of Sodium hydrogen difluoride

Starting material for solid state preparation of Na3MnF6 for further high pressure structural determination studies.

General Description

Sodium bifluoride is a white crystalline solid. Sodium hydrogen difluoride is soluble in water. Sodium hydrogen difluoride is corrosive to tissue. Sodium hydrogen difluoride is used as a preservative for anatomical and zoological specimens, in metal plating and for many other uses.

Air & Water Reactions

Water soluble. Reacts with water liberating heat and forming a corrosive solution. The reaction is not violent.

Reactivity Profile

Acidic salts, such as SODIUM BIFLUORIDE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.

Hazard

Highly toxic, strong irritant to tissue.

Health Hazard

INHALATION OF DUST: Irritating and possibly corrosive to mucous membranes. EYES: Irritating. INGESTION: Salty or soapy taste, salivation, nausea, burning or crampy abdominal pain, vomiting, diarrhea, muscle weakness, tremors. Rare: transient epileptiform convulsions, followed by CNS depression. Shock.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Flammability and Explosibility

Non flammable

Safety Profile

This material is very toxic to humans by ingestion; between 1 teaspoonful and 1 ounce may be fatal. Inhalation of dust may cause irritation to respiratory tract. Skin contact may result in irritation and ulceration; eye contact may cause burns. To fight fire, use water, foam, CO2, dry chemicals. When heated to decomposition it emits toxic fumes of Fand Na2O. See also FLUORIDES and HYDROFLUORIC ACID.

Properties of Sodium hydrogen difluoride

Melting point: >68 °C (dec.)
Boiling point: 270℃[at 101 325 Pa]
Density  2.08
vapor pressure  0.01Pa at 20℃
form  pellets
color  white hexagonal, hexane crystals, crystalline
Water Solubility  g/100g solution in H2O: 3.7 (20°C), 16.4 (80°C) [KIR78]
Merck  13,8656
CAS DataBase Reference 1333-83-1(CAS DataBase Reference)
EPA Substance Registry System Sodium bifluoride (1333-83-1)

Safety information for Sodium hydrogen difluoride

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Skull and Crossbones
Acute Toxicity
GHS06
GHS Hazard Statements H301:Acute toxicity,oral
H314:Skin corrosion/irritation
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

Computed Descriptors for Sodium hydrogen difluoride

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