Melting point :>310°C
Density :3.86
solubility :Soluble in concentrated sodium hydroxide solutions.
form :Powder
color :White
Water Solubility :very slightly soluble H2O; soluble in conc NaOH solutions [HAW93]
Sensitive :Light Sensitive
InChI :InChI=1S/H5IO6.3Na/c2-1(3,4,5,6)7;;;/h(H5,2,3,4,5,6,7);;;/q;3*+1/p-3
InChIKey :DSYMXPNUZLZKOA-UHFFFAOYSA-K
SMILES :I([O-])([O-])([O-])(=O)(O)O.[Na+].[Na+].[Na+]
CAS DataBase Reference :13940-38-0(CAS DataBase Reference)
EPA Substance Registry System :Periodic acid (H5IO6), trisodium salt (13940-38-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H272 May intensify fire; oxidizer Oxidising liquids;Oxidising solids Category 2 Category 3 Danger Warning P210, P220, P221P280, P370+P378,P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P220 Keep/Store away from clothing/…/combustible materials. P221 Take any precaution to avoid mixing with combustibles/… P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.