Melting point :277 °C(lit.)
Boiling point :302 °C
Density :5.44
vapor pressure :1.3 mm Hg ( 236 °C)
refractive index :1.859
Flash point :302°C
storage temp. :Store at RT.
solubility :H₂O: soluble
form :powder
color :White
Specific Gravity :5.44
Odor :odorless
Water Solubility :7.4 g/100 mL (20 ºC)
Merck :14,5876
Dielectric constant :3.2（Ambient）
Stability :Stable, but moisture sensitive and light sensitive - decomposes in sunlight. Incompatible with strong acids, ammonia, carbonates, metallic salts, alkalies, phosphites, phosphates, sulfites, sulfates, arsenic, antimony, bromides.
CAS DataBase Reference :7487-94-7(CAS DataBase Reference)
NIST Chemistry Reference :Mercury dichloride(7487-94-7)
EPA Substance Registry System :Mercuric chloride (7487-94-7)

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 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 H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, 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 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. 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.