Mercury(II) selenide Property

Melting point:

subl.

Density 

8.27 g/mL at 25 °C(lit.)

solubility 

insoluble in H2O

form 

Powder

color 

Gray

Water Solubility 

Insoluble in water.

Crystal Structure

Cubic, Sphalerite Structure - Space Group F(-4)3m

Exposure limits

ACGIH: TWA 0.025 mg/m3; TWA 0.2 mg/m3 (Skin)
NIOSH: IDLH 10 mg/m3; IDLH 1 mg/m3; TWA 0.05 mg/m3; TWA 0.2 mg/m3; Ceiling 0.1 mg/m3

CAS DataBase Reference

20601-83-6(CAS DataBase Reference)

EPA Substance Registry System

Mercury selenide (HgSe) (20601-83-6)

Safety

Hazard Codes 

T

Risk Statements 

23/24/25-33-36/37/38

Safety Statements 

22-26-36/37/39-45

RIDADR 

UN 2025 6.1/PG 2

WGK Germany 

3

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Hazard statements

H300Fatal if swallowed

H310Fatal in contact with skin

H330Fatal if inhaled

H373May cause damage to organs through prolonged or repeated exposure

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P320Specific treatment is urgent (see … on this label).

P330Rinse mouth.

P405Store locked up.

Mercury(II) selenide Chemical Properties,Usage,Production

Chemical Properties

gray powder(s); sublimes in vacuum [HAW93] [STR93]

Uses

Mercury(II) selenide is used in semiconductors, infrared detectors, solar cells, transistors and amplifiers. It is also used as filters in some steel plants in order to remove mercury from exhaust gases. Further, it is used as an ohmic contact to wide-gap II-VI semiconductors such as zinc selenide or zinc oxide.

Uses

Semiconductor in solar cells, thin-film transistors, infrared detectors, ultrasonic amplifiers.

Definition

Sublimes in a vacuum, d 8.266, insoluble in water.

Hazard

Highly toxic.