Melting point :632 °C(lit.)
Boiling point :decomposes [STR93]
Density :6.77 g/mL at 25 °C(lit.)
refractive index :1.860
storage temp. :Poison room
solubility :Water (Slightly)
form :Crystals or Powder
Specific Gravity :6.77
color :White to off-white
Water Solubility :Solubility in water increases with temperatureSoluble in water.
Merck :14,9269
CAS DataBase Reference :7446-18-6(CAS DataBase Reference)
EPA Substance Registry System :Thallium(I) sulfate (7446-18-6)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H300 Fatal if swallowed Acute toxicity,oral Category 1, 2 Danger P264, P270, P301+P310, P321, P330,P405, P501 H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P314 Get medical advice/attention if you feel unwell.