Nessler's Reagent

Melting point :120-127 °C(lit.)
Boiling point :105°C
Density :1.16 g/mL at 20 °C
Flash point :>230 °F
solubility :very soluble in H2O; soluble in ethanol,ethyl ether, acetone
form :Liquid
Specific Gravity :1.097
color :Yellow to orange
Odor :Odorless
Water Solubility :Soluble in water.
Sensitive :Hygroscopic
Merck :13,7773
Exposure limits :ACGIH: TWA 0.025 mg/m3 (Skin)
NIOSH: IDLH 10 mg/m3; TWA 0.05 mg/m3; Ceiling 0.1 mg/m3 Stability :Stable, but light sensitive. Incompatible with strong oxidizing agents.
InChIKey :OPCMAZHMYZRPID-UHFFFAOYSA-J
EPA Substance Registry System :Potassium mercuric iodide (7783-33-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404 H310 Fatal in contact with skin Acute toxicity,dermal Category 1, 2 Danger P262, P264, P270, P280, P302+P350,P310, P322, P361, P363, 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 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, 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:	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. P314 Get medical advice/attention if you feel unwell.