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arsenic    音标拼音: ['ɑrsənɪk]
n. 砷,砒霜

砷,砒霜

arsenic
n 1: a white powdered poisonous trioxide of arsenic; used in
manufacturing glass and as a pesticide (rat poison) and
weed killer [synonym: {arsenic}, {arsenic trioxide}, {arsenous
anhydride}, {arsenous oxide}, {white arsenic}, {ratsbane}]
2: a very poisonous metallic element that has three allotropic
forms; arsenic and arsenic compounds are used as herbicides
and insecticides and various alloys; found in arsenopyrite
and orpiment and realgar [synonym: {arsenic}, {As}, {atomic
number 33}]

Arsenic \Ar*sen"ic\, a. (Chem.)
Pertaining to, or derived from, arsenic; -- said of those
compounds of arsenic in which this element has its highest
equivalence; as, arsenic acid.
[1913 Webster]


Arsenic \Ar"se*nic\ ([aum]r"s[-e]*n[i^]k; 277), n. [L.
arsenicum, Gr. 'arseniko`n, 'arreniko`n, yellow orpiment,
perh. fr. 'arseniko`s or better Attic 'arreniko`s masculine,
'a`rrhn male, on account of its strength, or fr. Per.
zern[imac]kh: cf. F. arsenic.]
1. (Chem.) One of the elements, a solid substance resembling
a metal in its physical properties, but in its chemical
relations ranking with the nonmetals. It is of a
steel-gray color and brilliant luster, though usually dull
from tarnish. It is very brittle, and sublimes at 356[deg]
Fahrenheit. It is sometimes found native, but usually
combined with silver, cobalt, nickel, iron, antimony, or
sulphur. Orpiment and realgar are two of its sulphur
compounds, the first of which is the true arsenicum of the
ancients. The element and its compounds are active
poisons. Specific gravity from 5.7 to 5.9. Atomic weight
75. Symbol As.
[1913 Webster]

2. (Com.) Arsenious oxide or arsenious anhydride; -- called
also {arsenious acid}, {white arsenic}, and {ratsbane}.
[1913 Webster]

25 Moby Thesaurus words for "arsenic":
DDD, DDT, Paris green, antimony, arsenic trioxide, beryllium,
bichloride of mercury, cadmium, carbolic acid, carbon monoxide,
carbon tetrachloride, chlorine, cyanide, hydrocyanic acid,
hyoscyamine, lead, mercuric chloride, mercury, mustard gas,
nicotine, phenol, poison gas, prussic acid, selenium, strychnine


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  • Arsenic - Wikipedia
    The primary use of arsenic is in alloys of lead (for example, in car batteries and ammunition) Arsenic is also a common n-type dopant in semiconductor electronic devices, and a component of the III–V compound semiconductor gallium arsenide
  • Arsenic - World Health Organization (WHO)
    Key facts Arsenic is naturally present at high levels in the groundwater of several countries Arsenic is highly toxic in its inorganic form Contaminated water used for drinking, food preparation and irrigation of food crops poses the greatest threat to public health from arsenic
  • Arsenic | Definition, Symbol, Uses, Facts | Britannica
    Arsenic, a chemical element in the nitrogen group (Group 15 [Va] of the periodic table), existing in both gray and yellow crystalline forms Its chemical symbol is As, and it was first clearly identified as a free substance in 1649 by German pharmacist Johann Schroeder
  • Arsenic | National Institute of Environmental Health Sciences
    Arsenic is a naturally occurring element that is widely distributed in the Earth’s crust It is found in water, air, food, and soil Exposure to arsenic affects human health
  • Arsenic | Public Health Statement | ATSDR
    Arsenic is an element that is widely distributed in the earth's crust Elemental arsenic is ordinarily a steel grey metal-like material that sometimes occurs naturally However, arsenic is usually found in the environment combined with other elements such as oxygen, chlorine, and sulfur
  • Arsenic: A centuries-old poison | Poison Control
    Organic arsenic is less toxic than inorganic arsenic Inorganic arsenic contaminates groundwater Vomiting, neurological, and cardiac toxicity, anemia and rashes occur with acute toxicity Chronic toxicity is associated with gastrointestinal symptoms, anemia, decreased white cells, peripheral neuropathy, liver damage, and vascular insufficiency
  • How Does Arsenic Exposure Impact Health? | ColumbiaDoctors
    Dr Navas-Acien explains how arsenic in the environment can impact health, who is most affected, and how to lessen your exposure What is arsenic? Arsenic is a naturally occurring metal found in soil and water However, it’s also a human-made contaminant produced by some farms, factories, and mines due to the chemicals they use
  • Arsenic What is arsenic? - NCDHHS
    If you live in an area with a high level of arsenic in the water or soil, substituting cleaner sources of water and limiting contact with soil (for example, through use of a dense groundcover or thick lawn) would reduce family exposure to arsenic
  • The Facts on Arsenic | Dartmouth Toxic Metals
    This ore, known since the Greeks of Aristotle’s time, is an important commercial source of arsenic A less common form of arsenic found in nature is the silver-gray rock called arsenic trioxide, which also goes by several common names including elemental, native, pure and white arsenic
  • Fact Sheet on Arsenic - U. S. Environmental Protection Agency
    Arsenic is a naturally occurring element that is found in combination with either inorganic or organic substances to form many different compounds Inorganic arsenic compounds are found in soils, sediments, and groundwater





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