hydrargurum price cas:7439-97-6 hydrargurum silver liquid
hydrargurum mercury quicksilver Email/Skype:email@example.com
CAS Number: 7439-97-6
MDL Number: MFCD00011035
Molecular Formula: Hg
Formula Weight: 200.61
Chemical Formula: Hg
Color and Form: siliver and liquid
Physical Characteristics: melting point -38.89°C, boiling point
356.9°C, density 13.546
Mercury is a chemical element with symbol Hg and atomic number 80.
It is commonly known as quicksilver and was formerly named
hydrargyrum (/haɪˈdrɑrdʒərəm/). A heavy, silvery d-block element,
mercury is the only metallic element that is liquid at standard
conditions for temperature and pressure; the only other element
that is liquid under these conditions is bromine, though metals
such as caesium, gallium, and rubidium melt just above room
temperature.Mercury occurs in deposits throughout the world mostly
as cinnabar (mercuric sulfide). The red pigment vermilion, a pure
form of mercuric sulfide, is mostly obtained by reaction of mercury
(produced by reduction from cinnabar) with sulfur. Mercury
poisoning can result from exposure to water-soluble forms of
mercury (such as mercuric chloride or methylmercury), inhalation of
mercury vapor, or eating seafood contaminated with mercury.Mercury
is used in thermometers, barometers, manometers, sphygmomanometers,
float valves, mercury switches, mercury relays, fluorescent lamps
and other devices, though concerns about the element's toxicity
have led to mercury thermometers and sphygmomanometers being
largely phased out in clinical environments in favour of
alternatives such as alcohol- or galinstan-filled glass
thermometers and thermistor- or infrared-based electronic
instruments. Likewise, mechanical pressure gauges and electronic
strain gauge sensors have replaced mercury sphygmomanometers.
Mercury remains in use in scientific research applications and in
amalgam material for dental restoration in some locales. It is used
in lighting: electricity passed through mercury vapor in a
fluorescent lamp produces short-wave ultraviolet light which then
causes the phosphor in the tube to fluoresce, making visible light.
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3. Packing & Delivery
4.1. Indium is a chemical element with symbol In and atomic number
49. It is a post-transition metalic element that is rare in Earth's
crust. It has no obvious role in biological processes, but is of
considerable industrial importance. The metal is very soft,
malleable and easily fusible, with a melting point higher than
sodium, but lower than lithium or tin. Given its physical nature
and position in the periodic table, it counts as a heavy metal, but
in common circumstances is not a toxic hazard. Chemically, indium
is similar to gallium and thallium, and it is largely intermediate
between the two in terms of its properties.
4.2 Gallium is a chemical element with symbol Ga and atomic number
31. Elemental gallium does not occur in free form in nature, but as
the gallium(III) compounds that are in trace amounts in zinc ores
and in bauxite. Gallium is a soft, silvery metal, and elemental
gallium is a brittle solid at low temperatures, and melts at 29.76
°C (85.57 °F) (slightly above room temperature). The melting point
of gallium is used as a temperature reference point. The alloy
galinstan (68.5% gallium, 21.5% indium, and 10% tin) has an even
lower melting point of −19 °C (−2 °F), well below the freezing
point of water. Since its discovery in 1875, gallium has been used
as an agent to make alloys that melt at low temperatures. It has
also been useful in semiconductors, including as a dopant.Gallium
is predominantly used in electronics. Gallium arsenide, the primary
chemical compound of gallium in electronics, is used in microwave
circuits, high-speed switching circuits, and infrared circuits.
Semiconductive gallium nitride and indium gallium nitride produce
blue and violet light-emitting diodes (LEDs) and diode lasers.
Gallium is also used in the production of artificial gadolinium
gallium garnet for jewelry.Gallium has no known natural role in
biology. Gallium(III) behaves in a similar manner to ferric salts
in biological systems and has been used in some medical
applications, including pharmaceuticals and radiopharmaceuticals.
Gallium thermometers are manufactured as an eco-friendly
alternative to mercury thermometers.
4.3 Selenium is a chemical element with symbol Se and atomic number
34. It is a nonmetal with properties that are intermediate between
those of its periodic table column-adjacent chalcogen elements
sulfur and tellurium. It rarely occurs in its elemental state in
nature, or as pure ore compounds. Selenium (Greek σελήνη selene
meaning "Moon") was discovered in 1817 by Jöns Jacob Berzelius, who
noted the similarity of the new element to the previously known
tellurium (named for the Earth).Selenium is found impurely in metal
sulfide ores, copper where it partially replaces the sulfur.
Commercially, selenium is produced as a byproduct in the refining
of these ores, most often during production. Minerals that are pure
selenide or selenate compounds are known, but are rare. The chief
commercial uses for selenium today are in glassmaking and in
pigments. Selenium is a semiconductor and is used in photocells.
Uses in electronics, once important, have been mostly supplanted by
silicon semiconductor devices. Selenium continues to be used in a
few types of DC power surge protectors and one type of fluorescent
quantum dot.Selenium salts are toxic in large amounts, but trace
amounts are necessary for cellular function in many organisms,
including all animals and is an ingredient in many multi-vitamins
and other dietary supplements, including infant formula. Selenium
is a component of the antioxidant enzymes glutathione peroxidase
and thioredoxin reductase (which indirectly reduce certain oxidized
molecules in animals and some plants). It is also found in three
deiodinase enzymes, which convert one thyroid hormone to another.
Selenium requirements in plants differ by species, with some plants
requiring relatively large amounts, and others apparently requiring
4.4 cobalt basic info:
Brand name: Landi
CAS No: 7440-48-4
Apperance: Silver white lump
Package: sealed cans
Payment: T/T, MG,BTC,WU,LTC
Place of Origin: Hebei
Min.Order: 1 Kg
Means of Transport: by ship, by air, by express
Production Capacity: 1000tons/month
Delivery Date: 1-7 days
|Physical Size||Lump, Granules, Powder|
|Melting Point||449.51 °C|
|Boiling Point||998 °C|
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7. Our service
a)Any inquires will be replied in within 24 hours.
b) Samples production and delivery service can be provided.
c) All products have been strictly quality test in our factory
8.Why choose us?
Our company is specializing in the production of mercury for years.
b). Quality Controlled The company is considering. "Quality First,
c). Favorable Price We will provide you favorable and reasonable
price! The larger quantity,the more discount.
d).Timely Delivery No matter how small or big your order is, timely
delivery is our long-term goal!
9.Landi Company info:
Xingtai Landi Trading Co. Ltd is first professional research and
production of mercury which founded in 2003. It Locates in Xingtai
city, in Hebei, China. We have passed ISO9001 national quality
management system certification. We'll try our best to available
excellent carbonless paper products for markets. We establish a
perfect marketing and servicing network in large and medium cities
of china. Expand to international market of Middle East, Africa,
Southeast Asia, and other countries & regions. Our products
have won the domestic and foreign customers supporting and
10. Welcome to email us: firstname.lastname@example.org