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NaF Molar mass: 41.988173 g/mol Appearance White to greenish solid Odor: odorless Density: ... Sodium fluoride (NaF) is an inorganic compound with the formula Na F ...
On heating to its melting point, sodium tetrafluoroborate decomposes to sodium fluoride and boron trifluoride: [4]. NaBF 4 → NaF + BF 3. It is a source of tetrafluoroborate anion, which is used in organic chemistry for the preparation of salts.
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol ≈ 1 g/mol. For normal samples from Earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.
Molar mass: 188 g/mol Appearance white granular powder Odor: odorless Density: 2.7 g/cm 3: Solubility in water. 0.64 g/100 mL (20 °C) 1.27 g/100 mL (50 °C)
NaBr crystallizes in the same cubic motif as NaCl, NaF and NaI. The anhydrous salt crystallizes above 50.7 °C. [7] Dihydrate salt (NaBr·2H 2 O) crystallize out of water solution below 50.7 °C. [8] NaBr is produced by treating sodium hydroxide with hydrogen bromide. Sodium bromide can be used as a source of the chemical element bromine.
HF + NaOH → NaF + H 2 O HF + NaF → Na[HF 2] Sodium bifluoride reacts with water or moist skin to produce hydrofluoric acid. It also gives off hydrofluoric acid and hydrogen gas when it is heated to a gaseous state. The chemical can decompose upon contact with strong acids, strong bases, metal, water, or glass. [3]
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NaPO 3 + NaF → Na 2 PO 3 F. The process involves scission of a pyrophosphate bond, analogous to hydrolysis. SMFP can also be prepared by treating tetrasodium pyrophosphate or disodium phosphate with hydrogen fluoride. [2] In the laboratory, SMFP can be prepared by hydrolysis of difluorophosphate ions with dilute sodium hydroxide: