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267961

Sigma-Aldrich

Arsenic

powder, ≥99.997% trace metals basis

Synonym(s):

Arsenic black, Arsenic-75

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About This Item

Empirical Formula (Hill Notation):
As
CAS Number:
7440-38-2
Molecular Weight:
74.92
EC Number:
231-148-6
MDL number:
MFCD00085309
UNSPSC Code:
12141906
PubChem Substance ID:
24856254
NACRES:
NA.23

Assay

≥99.997% trace metals basis

form

powder

resistivity

33.3 μΩ-cm

bp

613 °C (lit.)

mp

817 °C (lit.)

density

5.727 g/mL at 25 °C (lit.)

SMILES string

[As]

InChI

1S/As

InChI key

RQNWIZPPADIBDY-UHFFFAOYSA-N

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Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A - Repr. 1A - STOT RE 1 Oral

Target Organs

Respiratory organs,Cardio-vascular system,Gastro-intestinal system,Central nervous system,Nervous system

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Luis Rodríguez-Lado et al.
Science (New York, N.Y.), 341(6148), 866-868 (2013-08-24)
Arsenic-contaminated groundwater used for drinking in China is a health threat that was first recognized in the 1960s. However, because of the sheer size of the country, millions of groundwater wells remain to be tested in order to determine the
M G Mostafa et al.
Occupational and environmental medicine, 70(11), 768-773 (2013-10-22)
Data on the role of arsenic in renal cancer are suggestive but inconclusive. The present analysis aimed to determine whether renal cancers were more likely in Bangladeshi villagers exposed to high arsenic concentration in well water and, if so, whether
Lucia Cavalca et al.
Future microbiology, 8(6), 753-768 (2013-04-17)
Arsenic is present in many environments and is released by various natural processes and anthropogenic actions. Although arsenic is recognized to cause a wide range of adverse health effects in humans, diverse bacteria can metabolize it by detoxification and energy
Samuel M Cohen et al.
Critical reviews in toxicology, 43(9), 711-752 (2013-09-18)
Inorganic arsenic (iAs) at high exposures is a human carcinogen, affecting mainly the urinary bladder, lung and skin. We present an assessment of the mode of action (MOA) of iAs's carcinogenicity based on the United States Environmental Protection Agency/International Programme
M Azizur Rahman et al.
Aquatic toxicology (Amsterdam, Netherlands), 146, 212-219 (2013-12-11)
Arsenic (As) is extremely toxic to living organisms at high concentration. In aquatic systems, As exists in different chemical forms. The two major inorganic As (iAs) species are As(V), which is thermodynamically stable in oxic waters, and As(III), which is
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