Phenylarsonsure

Bezeichnung:Phenylarsonsure

CAS-Nr98-05-5

Englisch Name:PHENYLARSONIC ACID

CBNumberCB9684423

SummenformelC6H7AsO3

Molgewicht202.04

MOL-Datei98-05-5.mol

Synonyma

Phenylarsonsure

Phenylarsonsäure

Phenylarsonsure physikalisch-chemischer Eigenschaften

Schmelzpunkt	160 °C
Siedepunkt	66 °C(Press: 1 Torr)
Dichte	1,76 g/cm³
Löslichkeit	3.2% in water and 15.5% in ethanol.
pka	pK2: 8.48(+1) (22°C)
Aggregatzustand	Powder
Farbe	white
Wichte	1.76
Wasserlöslichkeit	31.6g/L(28 ºC)
Merck	14,1067
CAS Datenbank	98-05-5(CAS DataBase Reference)
EPA chemische Informationen	Benzenearsonic acid (98-05-5)

Sicherheit

Kennzeichnung gefährlicher	N-T
R-Sätze:	50/53-23/25
S-Sätze:	61-60-45-28A-20/21
RIDADR	3280
RTECS-Nr.	CY3150000
TSCA	Yes
HazardClass	6.1
PackingGroup	III
HS Code	29310099
Giftige Stoffe Daten	98-05-5(Hazardous Substances Data)
Toxizität	LDLo orl-rat: 50 mg/kg JPETAB 93,287,48

Gefahreninformationscode (GHS)

PHENYLARSONIC ACID Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSER FESTSTOFF IN VERSCHIEDENEN FORMEN.
CHEMISCHE GEFAHREN
Zersetzung beim Erhitzen unter Bildung giftiger Rauche mit Arsen (s. ICSC 0013).
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation und durch Verschlucken.
INHALATIONSGEFAHREN
Verdampfung bei 20°C vernachlässigbar; eine gesundheitsschädliche Partikelkonzentration in der Luft kann jedoch beim Dispergieren schnell erreicht werden, vor allem als Pulver.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
(S. Anm.)
LECKAGE
Persönliche Schutzausrüstung: Vollschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät. Verschüttetes Material in abdichtbaren Behältern sammeln. NICHT in die Kanalisation spülen. Reste sorgfältig sammeln. An sicheren Ort bringen.
R-Sätze Betriebsanweisung:
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R23/25:Giftig beim Einatmen und Verschlucken.
S-Sätze Betriebsanweisung:
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S20/21:Bei der Arbeit nicht essen, trinken,rauchen.
Beschreibung
Benzenearsonic acid is a colorless, crystallinepowder. Molecular weight = 202.05; Specific gravity(H2O:1)= 1.76; Freezing/Melting point=160℃ (decomposes). Hazard Identification (based on NFPA-704 MRating System): Health 4, Flammability 1, Reactivity 0.Soluble in water.
Chemische Eigenschaften
Benzenearsonic acid is a colorless, crystalline powder.
Chemische Eigenschaften
white to slightly yellow crystalline powder
Verwenden
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.
Verwenden
Reagent for tin.
Definition
ChEBI: Phenylarsonic acid is an organoarsonic acid and a member of arsonic acids. It is a conjugate acid of a phenylarsonate(1-).
Allgemeine Beschreibung
Colorless solid. Used as an analytical reagent for tin.
Reaktivität anzeigen
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.
Brandgefahr
PHENYLARSONIC ACID emits poisonous fumes of arsenic when heated to decomposition.
Sicherheitsprofil
A deadly poison by ingestion andintravenous routes. When heated to decomposition it emits toxic fumes of As.
mögliche Exposition
This material is used as an analytical reagent for tin.
Erste Hilfe
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Speed in removing material from skinis of extreme importance. Shampoo hair promptly if contaminated. Seek medical attention immediately. If thischemical has been inhaled, remove from exposure, beginrescue breathing (using universal precautions, includingresuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
Note to physician: For severe poisoning BAL [British AntiLewisite, dimercaprol, dithiopropanol (C3H8OS2)] has beenused to treat toxic symptoms of certain heavy metals poisoning—including arsenic. Although BAL is reported tohave a large margin of safety, caution must be exercisedbecause toxic effects may be caused by excessive dosage.Most can be prevented by premedication with 1-ephedrinesulfate (CAS: 134-72-5). For milder poisoning penicillamine (not penicillin) has been used, both with mixed success. Side effects occur with such treatment and it is nevera substitute for controlling exposure. It can only be doneunder strict medical care
Lager
Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Store in tightly closed containers in a cool, well-ventilated area.
Versand/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).
läuterung methode
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 Upstream-Materialien And Downstream Produkte

Phenylarsonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

98-05-5, PHENYLARSONIC ACID Verwandte Suche:

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