Melting point :300 °C (dec.) (lit.)
Boiling point :300°C
Density :3.865
bulk density :2900kg/m3
vapor pressure :0Pa at 20℃
storage temp. :Store at +5°C to +30°C.
solubility :H₂O: 0.5 M at 20 °C, clear, colorless
form :Solid
Specific Gravity :4.174
color :White to almost white
Odor :Odorless
PH Range :3.5 - 5.5
PH :3.5-5.5 (25℃, 0.5M in H2O)
Water Solubility :80 g/L (20 ºC)
Sensitive :Hygroscopic
Merck :14,8640
Stability :Stable. Incompatible with organic materials, combustible materials. Forms explosive mixtures with reducing agents, finely powdered metals, magnesium.
InChI :1S/HIO4.Na/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1
InChIKey :JQWHASGSAFIOCM-UHFFFAOYSA-M
SMILES :[Na+].[O-]I(=O)(=O)=O
LogP :-1 at 20℃
CAS DataBase Reference :7790-28-5(CAS DataBase Reference)
EPA Substance Registry System :Periodic acid (HIO4), sodium salt (7790-28-5)
Absorption :cut-off at 350nm in H2O at 0.05M

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H271 May cause fire or explosion; strong oxidiser Oxidising liquids;Oxidising solids Category 1 Danger P210, P220, P221, P280, P283,P306+P360, P371+P380+P375,P370+P378, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501 H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. 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. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P310 Immediately call a POISON CENTER or doctor/physician. P314 Get medical advice/attention if you feel unwell. P363 Wash contaminated clothing before reuse. P391 Collect spillage. Hazardous to the aquatic environment P405 Store locked up. P501 Dispose of contents/container to..…