Undried Vacuum Salt

Chemical Specification

Test methods used are BS7319:1990 or equivalent, except appearance, which is a visual assessment.


Property Unit Specification Typical Analysis
Appearance White Crystalline
*Assay %m/m NaCl >= 99.9 >99.9
Surface Moisture %m/m H2O <3.5 2.5
*Sulphate mg/kg Na2SO4 <500 251
Sodium
Hexacyanoferrate II
mg/kg Na4Fe(CN)6 <15 4
Total Iron mg/kg Fe <5 1.3
Total Calcium mg/kg Ca <20 4.7
Total Magnesium mg/kg Mg <3 0.14
Total Copper mg/kg Cu <0.2 0.03
*Total Arsenic mg/kg As <0.2 <0.2
*Total Lead mg/kg Pb <0.05 0.01
*Total Cadmium mg/kg Cd <0.1 <0.01
*Total Mercury mg/kg Hg <0.05 <0.03
*Oil mg/kg <4 <4

*monitored on PDV salt

Typical Physical Characteristics

Bulk Density 1.12 - 1.36 g/ml
Particle Size 0.02 - 0.5 mm