Description
Purity: *9.*9%
Appearance: dense, silvery-white, poisonous metal
with a mirror-like appearance
Place of Origin: China (Mainland)
Specification:
| Item |
Inspection Value |
| Content of mercury |
≥*9.**9% |
| Total Residua Burning |
≦0.**1% |
| Fe |
≦0.***2% |
| Other Heavy Metals |
≦0.**4% |
Properties:
It is the only common metal that is liquid at room temperature
Evaporates slowly at room temperature
Others metals that are liquid near room temperature are gallium,
francium and cesium
The metal is relatively stable in dry air, but in moist air
tarnishes slowly to form a gray oxide coating
With high surface tension and when spilled, breaks up into tiny
beads
Readily forms alloys (called amalgams) with other metals, such as
silver, gold and tin, as it does not amalgamate with iron, mercury
is often stored in iron containers
Usage:
Used in barometers and manometers (instruments for measuring the
pressure of gases and liquids), because of its high density
The metal also has a high rate of nearly linear thermal expansion,
so it is used extensively in thermometers
Its ease in amalgamating with metals is made use of in extracting
gold, silver, and platinum from their ores
Making advertising signs, mercury switches and other electrical
apparatus
Used in mercury-vapor lamps (which emit light rich in ultraviolet
radiation)
These lamps are typically used for street lighting, as sun lamps,
and as UV lights (black lights)
Various compounds of mercury are used in medicine, dentistry,
cosmetics (mascara) and also in agriculture to make fungicides
Packing: *4.5kg/iron flask
