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PHENYLARSONIC ACID

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PHENYLARSONIC ACID Basic information

Product Name:
PHENYLARSONIC ACID
Synonyms:
  • ai3-16050[qr]
  • Arsonicacid,phenyl-
  • Phenylarsonicacid,98%
  • Phenylarsonsure
  • Benzenearsonic acid: (Phenylarsonic acid)
  • Phenyldihydroxyarsine oxide
  • NSC 15566
  • arsonicacid,phenyl-[qr]
CAS:
98-05-5
MF:
C6H7AsO3
MW:
202.04
EINECS:
202-631-9
Product Categories:
  • organoarsenic compound
  • Organometallics
  • As (Arsenic) Compounds
  • Classes of Metal Compounds
  • Semimetal Compounds
Mol File:
98-05-5.mol
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PHENYLARSONIC ACID Chemical Properties

Melting point:
160 °C
Boiling point:
66 °C(Press: 1 Torr)
Density 
1,76 g/cm3
solubility 
3.2% in water and 15.5% in ethanol.
pka
pK2: 8.48(+1) (22°C)
form 
Powder
color 
white
Specific Gravity
1.76
Water Solubility 
31.6g/L(28 ºC)
Merck 
14,1067
CAS DataBase Reference
98-05-5(CAS DataBase Reference)
EPA Substance Registry System
Benzenearsonic acid (98-05-5)
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Safety Information

Hazard Codes 
N-T
Risk Statements 
50/53-23/25
Safety Statements 
61-60-45-28A-20/21
RIDADR 
3280
RTECS 
CY3150000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29310099
Toxicity
LDLo orl-rat: 50 mg/kg JPETAB 93,287,48

MSDS

  • Language:English Provider:ACROS
  • Language:English Provider:ALFA
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PHENYLARSONIC ACID Usage And Synthesis

Chemical Properties

white to slightly yellow crystalline powder

Chemical Properties

Benzenearsonic acid is a colorless, crystalline powder.

Uses

Reagent for tin.

Uses

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.]

PHENYLARSONIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

PHENYLARSONIC ACIDSupplier

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