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Merck

202657

Arsenic

99.999% trace metals basis

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About This Item

Empirical Formula (Hill Notation):
As
CAS Number:
7440-38-2
Molecular Weight:
74.92
NACRES:
NA.23
PubChem Substance ID:
24852109
UNSPSC Code:
12141906
EC Number:
231-148-6
MDL number:
MFCD00085309

Key Documents

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InChI key

RQNWIZPPADIBDY-UHFFFAOYSA-N

InChI

1S/As

SMILES string

[As]

assay

99.999% trace metals basis

resistivity

33.3 μΩ-cm

bp

613 °C (lit.)

mp

817 °C (lit.)

density

5.727 g/mL at 25 °C (lit.)

Quality Level

100

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Application

Arsenic pieces may be used to prepare α-realgar (As4S4).

signalword

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

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

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

7440-38-2

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX6073
MKCW8798
MKCT0417
MKCT5811
MKCQ5817

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Valence and core-level binding energy shifts in realgar (As 4 S 4) and pararealgar (As 4 S 4) arsenic sulfides.
Bullen HA, et al.
Surface Science, 531(3), 319-328 (2003)
Arsenic binding to proteins.
Shengwen Shen et al.
Chemical reviews, 113(10), 7769-7792 (2013-07-03)
Meryene C Teixeira et al.
Food chemistry, 154, 38-43 (2014-02-13)
We have developed an eletroanalytical method that employs Cu(2+) solutions to determine arsenic in sugarcane brandy using an electrode consisting of carbon paste modified with carbon nanotubes (CNTPE) and polymeric resins. We used linear sweep (LSV) and differential-pulse (DPV) voltammetry
Ilona Dudka et al.
Environment international, 68, 71-81 (2014-04-10)
Environmental metabonomics is the application of metabonomics to characterize the interactions of organisms with their environment. Metabolic profiling is an exciting addition to the armory of the epidemiologist for the discovery of new disease risk biomarkers and diagnostics. This work
Tse-Yen Yang et al.
Environmental research, 128, 57-63 (2013-11-26)
Arsenic is a well-documented carcinogen of human urothelial carcinoma (UC) with incompletely understood mechanisms. This study aimed to compare the genome-wide DNA methylation profiles of arsenic-induced UC (AsUC) and non-arsenic-induced UC (Non-AsUC), and to assess associations between site-specific methylation levels
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