![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Mercury%2528II%2529-chloride-xtal-1980-3D-balls.png/640px-Mercury%2528II%2529-chloride-xtal-1980-3D-balls.png&w=640&q=50)
Mercury(II) chloride
Chemical compound known as 'corrosive sublimate' / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Sublimate of mercury?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Mercury(II) chloride (or mercury bichloride[citation needed], mercury dichloride), historically also known as sulema or corrosive sublimate,[2] is the inorganic chemical compound of mercury and chlorine with the formula HgCl2, used as a laboratory reagent. It is a white crystalline solid and a molecular compound that is very toxic to humans. Once used as a treatment for syphilis, it is no longer used for medicinal purposes because of mercury toxicity and the availability of superior treatments.
Quick Facts Names, Identifiers ...
![]() | |
![]() | |
Names | |
---|---|
IUPAC names
Mercury(II) chloride Mercury dichloride | |
Other names
Mercury bichloride Corrosive sublimate Abavit Mercuric chloride Sulema (Russia) TL-898 Agrosan Hydrargyri dichloridum (homeopathy) | |
Identifiers | |
3D model (JSmol) |
|
ChemSpider |
|
ECHA InfoCard | 100.028.454 ![]() |
EC Number |
|
KEGG |
|
PubChem CID |
|
RTECS number |
|
UNII | |
UN number | 1624 |
CompTox Dashboard (EPA) |
|
| |
| |
Properties | |
HgCl2 | |
Molar mass | 271.52 g/mol |
Appearance | colorless or white solid |
Odor | odorless |
Density | 5.43 g/cm3 |
Melting point | 276 °C (529 °F; 549 K) |
Boiling point | 304 °C (579 °F; 577 K) |
3.6 g/100 mL (0 °C) 7.4 g/100 mL (20 °C) 48 g/100 mL (100 °C) | |
Solubility | 4 g/100 mL (ether) soluble in alcohol, acetone, ethyl acetate slightly soluble in benzene, CS2, pyridine |
Acidity (pKa) | 3.2 (0.2M solution) |
−82.0·10−6 cm3/mol | |
Refractive index (nD) |
1.859 |
Structure | |
orthogonal | |
linear | |
linear | |
zero | |
Thermochemistry | |
Std molar entropy (S⦵298) |
144 J·mol−1·K−1[1] |
Std enthalpy of formation (ΔfH⦵298) |
−230 kJ·mol−1[1] |
Gibbs free energy (ΔfG⦵) |
-178.7 kJ/mol |
Pharmacology | |
D08AK03 (WHO) | |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
Highly toxic, corrosive. |
GHS labelling: | |
![]() ![]() ![]() ![]() | |
Danger | |
H300+H310+H330, H301, H314, H341, H361f, H372, H410 | |
P201, P202, P260, P264, P270, P273, P280, P281, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P314, P321, P330, P363, P391, P405, P501 | |
NFPA 704 (fire diamond) | |
Flash point | Non-flammable |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
32 mg/kg (rats, orally) |
Safety data sheet (SDS) | ICSC 0979 |
Related compounds | |
Other anions |
Mercury(II) fluoride Mercury(II) bromide Mercury(II) iodide |
Other cations |
Zinc chloride Cadmium chloride Mercury(I) chloride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Close