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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 | 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 - Element information, properties and uses | Periodic Table
    A small amount of arsenic is found in its native state It is mainly found in minerals The most common arsenic-containing mineral is arsenopyrite Others include realgar, orpiment and enargite Most arsenic is produced as a by-product of copper and lead refining
  • 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
  • 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
  • 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: Toxic Element with Diverse Uses and Applications
    Explore the complex world of Arsenic, an element known for its toxicity but also valued in various industrial and medical applications Learn about its chemical properties, uses, safety precautions, and its role in biological systems
  • Arsenic: A centuries-old poison
    What is arsenic? Arsenic is a natural element found in water, soil, and air It is a metalloid with properties of metals and nonmetals It exists in organic and inorganic forms Arsenic compounds are found in some pharmaceuticals, commercial, and industrial products
  • Arsenic | ToxFAQs™ | ATSDR - Centers for Disease Control and Prevention
    Arsenic is a naturally occurring element widely distributed in the earth's crust In the environment, arsenic is combined with oxygen, chlorine, and sulfur to form inorganic arsenic compounds
  • Lower Arsenic in Drinking Water Reduces Death Risk, Even After Years of . . .
    A new 20-year study of nearly 11,000 adults in Bangladesh found that lowering arsenic levels in drinking water was associated with up to a 50 percent lower risk of death from heart disease, cancer, and other chronic illnesses, compared with continued exposure The study highlights the importance of ensuring access to arsenic-free drinking water and provides the first long-term, individual





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