98-05-5 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 98-05-5 differently. You can refer to the following data:
1. white to slightly yellow crystalline powder
2. Benzenearsonic acid is a colorless, crystalline
powder.
Uses
Different sources of media describe the Uses of 98-05-5 differently. You can refer to the following data:
1. Reagent for tin.
2. Arsonic acids (arsonic acid, phenylarsonic acid, p-hydroxyphenylarsonic acid,
arsanilic acid) react with the tetravalent metals of group IV of the periodic
system to give water-insoluble complexes of composition MA2 . The composition
of the precipitates is not exactly stoichiometric, and hence the precipitates are not
suitable for direct gravimetric analysis. Instead, the precipitates are transformed
by ignition to the corresponding metal oxides and weighed as such. The main
advantage of the application of these reagents is the possibility offered of the
selective determination of zirconium(IV), hafnium(IV) and titanium(IV) in the
presence of many other metals, such as zinc, manganese, nickel, cobalt, aluminium,
copper, calcium, magnesium and chromium. In practice they are utilized most
frequently for the determination of zirconium.
In strong mineral acidic media phenylarsonic acid forms water-insoluble precipitates
with zirconium and hafnium only. In highly concentrated acetic acid
solution the thorium phenylarsonate complex is also precipitated, which makes
possible the separation of thorium from rare earth metals.
The procedure gives satisfactory results in the presence of alkaline earth metals,
iron, aluminium, manganese, cobalt, nickel, copper, zinc and bismuth.
General Description
Colorless solid. Used as an analytical reagent for tin.
Reactivity Profile
PHENYLARSONIC ACID emits poisonous fumes of arsenic when heated to decomposition. [EPA, 1998].
Health Hazard
PHENYLARSONIC ACID is a deadly poison. (Non-Specific -- Arsenic Compounds) Chronic exposure to arsenic compounds can cause dermatitis and digestive disorders. Renal damage may develop.
Fire Hazard
PHENYLARSONIC ACID emits poisonous fumes of arsenic when heated to decomposition.
Safety Profile
A deadly poison by ingestion andintravenous routes. When heated to decomposition it emits toxic fumes of As.
Potential Exposure
This material is used as an analytical
reagent for tin.
Shipping
UN3280 Organoarsenic compound, liquid, n.o.s.,
Hazard Class: 6.1; Labels: 6.1—Poisonous materials,
Technical Name Required. Potential Inhalation Hazard
(Special Provision 5).
Purification Methods
Crystallise it from H2O (3mL/g) between 90o and 0o. Alternatively dissolve 600g of the acid in 500mL of boiling H2O, add 20g of Norite, filter hot, cool, filter off the crystals and dry them. On heating at ~154-160o it is converted to the anhydride. [Bullard & Dickery Org Synth Coll Vol II 494 1943, for the 4-nitro derivative see Ruddy & Starkey Org Synth Coll Vol III 665 1955, Beilstein 16 H 868, 16 I 448, 16 II 457, 16 III 1057, 16 IV 1183.]
Check Digit Verification of cas no
The CAS Registry Mumber 98-05-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 98-05:
(4*9)+(3*8)+(2*0)+(1*5)=65
65 % 10 = 5
So 98-05-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H7AsO3/c8-7(9,10)6-4-2-1-3-5-6/h1-5H,(H2,8,9,10)
98-05-5Relevant articles and documents
ARSENIC COMPLEXES FOR POTENTIAL DIAGNOSTIC APPLICATIONS
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Paragraph 0110-0111, (2014/03/24)
The present invention provides radioactive arsenic complex useful in diagnostic and therapeutic applications and methods for forming those arsenic complexes.
Substituted phenylarsonic acids; structures and spectroscopy
Lloyd, Nicholas C.,Morgan, Hugh W.,Nicholson, Brian K.,Ronimus, Ron S.
, p. 2443 - 2450 (2008/09/20)
Full NMR and ESI-MS spectra, and differential scanning calorimeter data are presented for 15 substituted phenylarsonic acids, including two new fluoro-substituted examples. X-ray crystal structure determinations of five examples (phenylarsonic acid and the 4-fluoro-, 4-fluoro-3-nitro-, 3-amino-4-hydroxy- and 3-amino-4-methoxy-substituted derivatives) were determined and the H-bonding crystal-packing patterns analysed.
Reaction of 4-Methyl-2-phenyl-1,3-dioxa-2-arsenacyclohexane 2-Oxide with Acyclic Boric Acid Derivatives
Kuznetsov, V. V.,Mazepa, A. V.,Brusilovskii, Yu. E.
, p. 812 - 812 (2007/10/03)
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