Not all salts have sodium in them. So a salinity hazard could mean different salts.
Salinity increases conductivity. A saline liquid as a high percentage of sodium which is facilitates the transfer of electrons hence increasing on the conductivity.
Any difference - the formula unit is NaCl.
Sodium chloride is a chemical compound, sodium is a chemical element.
Sodium chloride is NaCl; if you think to sodium hydride this is NaH.
Salinity is the measure of salt concentration in water
Salinity is due principally to sodium chloride.
Sodium electronegativity (after Pauling): 0,93 Bromine electronegativity (after Pauling): 2,96 The difference is 2,03.
Sodium, Na
Sodium nitrate is more soluble in water.
Sodium chloride hasn't a hazard symbol or a risk phrase. See also the link below.
The electronegativity difference between sodium (Na) and bromine (Br) is about 2.8. This indicates that bromine is significantly more electronegative than sodium, leading to the formation of an ionic bond when they react to form sodium bromide.
The Hartmannn solution contain sodium lactate and sodium, potassium, calcium chlorides.