Advertisement
Advertisement
arsenic
[ahr-suh-nik, ahrs-nik, ahr-sen-ik]
noun
a grayish-white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. As; 74.92; 33.
a mineral, the native element, occurring in white or gray masses.
adjective
of or containing arsenic, especially in the pentavalent state.
arsenic
noun
a toxic metalloid element, existing in several allotropic forms, that occurs principally in realgar and orpiment and as the free element. It is used in transistors, lead-based alloys, and high-temperature brasses. Symbol: As; atomic no: 33; atomic wt: 74.92159; valency: –3, 0, +3, or +5; relative density: 5.73 (grey); melting pt: 817°C at a pressure of 3MN/m² (grey); sublimes at 613°C (grey)
a nontechnical name for arsenic trioxide
adjective
of or containing arsenic, esp in the pentavalent state
arsenic
A metalloid element most commonly occurring as a gray crystal, but also found as a yellow crystal and in other forms. Arsenic and its compounds are highly poisonous and are used to make insecticides, weed killers, and various alloys. Atomic number 33; atomic weight 74.922; valence 3, 5. Gray arsenic melts at 817°C (at 28 atm pressure), sublimes at 613°C, and has a specific gravity of 5.73.
See Periodic Table
Other 51Թ Forms
- nonarsenic adjective
51Թ History and Origins
Origin of arsenic1
51Թ History and Origins
Origin of arsenic1
Example Sentences
The county has used 12 mg/kg as a reference level, based on an estimate of the highest naturally occurring arsenic levels in all of Southern California.
The Times found two properties cleared by the Army Corps in Altadena still had contamination above the state’s typical health-based cleanup goals: one arsenic, one lead.
This is virtually always the case for arsenic, which has a health-based level of 0.032 mg/kg, but often naturally occurs in California at levels ranging from 2 to 11 mg/kg.
The lab results also showed arsenic in amounts higher than federal and state levels, but below another common level used in California.
But another possible source could have been from repeated applications of fertilizers containing lead and arsenic that were widely used over the last century, Wallace said.
Advertisement
Advertisement
Advertisement
Advertisement
Browse