Potassium pyrosulfate

Melting point :325 °C
bulk density :830kg/m3
Density :2.28 g/mL at 25 °C (lit.)
storage temp. :no restrictions.
solubility :H₂O: 0.1 M at 20 °C, clear, colorless
form :Solid
Specific Gravity :2.28
color :White
PH :0.8 (50g/l, H2O, 20℃)
Odor :Odorless
PH Range :1 - 2 at 25.5 g/l at 25 °C
Water Solubility :MAY DECOMPOSE
Sensitive :Hygroscopic
Merck :14,7664
Stability :Stable. Incompatible with strong acids, strong bases.
InChI :1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
InChIKey :KAQHZJVQFBJKCK-UHFFFAOYSA-L
SMILES :[K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O
CAS DataBase Reference :7790-62-7(CAS DataBase Reference)
EPA Substance Registry System :Disulfuric acid, dipotassium salt (7790-62-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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 H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.