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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
    Arsenic is a chemical element; it has the symbol As and atomic number 33 It is a metalloid and one of the pnictogens, and therefore shares many properties with its group 15 neighbors phosphorus and antimony Arsenic is notoriously toxic It occurs naturally in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal It has various allotropes, but
  • 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 - World Health Organization (WHO)
    WHO fact sheet on arsenic provides key facts and information on sources of exposure, health effects, WHO response
  • Arsenic and Your Health fact sheet - National Institute of . . .
    Arsenic and Your Health Arsenic is a naturally occurring, semimetallic element widely distributed in the Earth’s crust Arsenic levels in the environment can vary by locality, and it is found in water, air, and soil There are two general forms of arsenic:
  • 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 combined with these elements is called inorganic arsenic Arsenic combined with carbon and hydrogen
  • Arsenic - Element information, properties and uses | Periodic Table
    Some scientists think that arsenic may be an essential element in our diet in very, very low doses In small doses it is toxic and a suspected carcinogen Once inside the body it bonds to atoms in the hair, so analysing hair samples can show whether someone has been exposed to arsenic Some foods, such as prawns, contain a surprising amount of arsenic in a less harmful, organic form
  • Arsenic - Simple English Wikipedia, the free encyclopedia
    Arsenic burning in the air Arsenic is a relatively chemically inert element, similar to copper in reactivity It burns in air to make garlic -smelling arsenic trioxide Arsenic, as well as some of its compounds, do not have a liquid state; they sublime Arsenic reacts with fluorine to make arsenic pentafluoride It reacts with the rest of the halogens to make the arsenic tri halides Arsenic
  • Arsenic Poisoning: Causes, Symptoms Treatment - Cleveland Clinic
    Arsenic poisoning can occur when you take in high levels of arsenic Drinking contaminated water causes most cases Symptoms of immediate arsenic poisoning include nausea, vomiting and diarrhea Long-term exposure can cause skin changes such as darkening and lesions Treatment may include the use of a chelating agent or bowel irrigation
  • Fact Sheet on Arsenic - U. S. Environmental Protection Agency
    Arsenic 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 These compounds occur either naturally or as a result of mining, ore smelting, and industrial use of arsenic Organic arsenic compounds are found mainly in fish and





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