METHYLMERCURY(II) HYDROXIDE Property

Melting point:

137°C

Boiling point:

39.8°C

RTECS 

OW4900000

form 

Liquid

color 

Colorless

Water Solubility 

Slightly soluble in water.

Exposure limits

ACGIH: TWA 0.01 mg/m3; STEL 0.03 mg/m3 (Skin)
OSHA: Ceiling 0.04 mg/m3
NIOSH: IDLH 2 mg/m3; IDLH 10 mg/m3; TWA 0.01 mg/m3; TWA 0.05 mg/m3; STEL 0.03 mg/m3; Ceiling 0.1 mg/m3

Stability:

Stable. Incompatible with oxidizing agents, alkalis, acids, alkali earth metals, reactive inorganic and organic compounds.

CAS DataBase Reference

1184-57-2

EPA Substance Registry System

Methymercury hydroxide (1184-57-2)

Safety

Risk Statements 

26/27/28-33

Safety Statements 

13-28-45

RIDADR 

2024

HazardClass 

6.1

PackingGroup 

I

Toxicity

monkey,LD,oral,> 3mg/kg (3mg/kg),American Journal of Pathology. Vol. 80, Pg. 451, 1975.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Hazard statements

H300Fatal if swallowed

H311Toxic in contact with skin

H331Toxic if inhaled

H373May cause damage to organs through prolonged or repeated exposure

H401Toxic to aquatic life

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

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

P405Store locked up.

METHYLMERCURY(II) HYDROXIDE Chemical Properties,Usage,Production

Chemical Properties

usually provided as a colourless aqueous solution

Uses

Methyl mercury(II) hydroxide is used as defoliant and epoxidation catalyst, as denaturing agent.

General Description

Greenish-white powder or flakes with an unpleasant odor.

Air & Water Reactions

METHYLMERCURY(II) HYDROXIDE is sensitive to air and light. Slightly soluble in water.

Reactivity Profile

METHYLMERCURY(II) HYDROXIDE is incompatible with oxidizing materials, acid and acid fumes.

Fire Hazard

Flash point data for METHYLMERCURY(II) HYDROXIDE are not available. METHYLMERCURY(II) HYDROXIDE is probably combustible.

Safety Profile

Poison by intraperitoneal route. An experimental teratogen. Experimental reproductive effects. Human mutation data reported. When heated to decomposition it emits toxic fumes of Hg.