98-05-5 Usage
Description
Phenylarsonic acid, also known as phenylarsonic acid, is an organic compound with the chemical formula C6H5AsO(OH)2. It is a derivative of arsonic acid and has a phenyl group attached to the arsenic atom. Phenylarsonic acid is a white crystalline solid that is soluble in water and has a strong, garlic-like odor.
Uses
Used in Chemical Analysis:
Phenylarsonic acid is used as a reagent for the selective determination of tetravalent metals of group IV of the periodic system, such as zirconium(IV), hafnium(IV), and titanium(IV), in the presence of many other metals. It forms water-insoluble complexes with these metals, which can be transformed by ignition to the corresponding metal oxides and weighed for analysis.
Used in Mineral Analysis:
In strong mineral acidic media, phenylarsonic acid forms water-insoluble precipitates with zirconium and hafnium only, allowing for their selective determination. In highly concentrated acetic acid solution, the thorium phenylarsonate complex is also precipitated, enabling the separation of thorium from rare earth metals.
Used in Analytical Chemistry:
Phenylarsonic acid is used for the determination of zirconium, as it provides satisfactory results in the presence of alkaline earth metals, iron, aluminum, manganese, cobalt, nickel, copper, zinc, and bismuth. It is frequently utilized in practice for this purpose.
Overall, phenylarsonic acid is a versatile reagent in various fields of analysis, particularly in the selective determination and separation of specific metal ions.
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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