Sodium arsenate, dibasic heptahydrate

arsenic acid sodium · SODIUM ARSENATE DIBASIC HEPTAHYDRATE · Sodiumarseniate · SodiumArsenateGr · Dibasicsodiumarsenate · Alvimopan Impurity 44 · SODIUM ARSENATE HYDRATE · SODIUM HYDROGEN ARSENATE

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Molekülstruktur von Sodium arsenate, dibasic heptahydrate

Identifikatoren & physikalische Daten

CAS No.	10048-95-0
Summenformel	Na2(AsHO4).7H2O
Durchschnittliche Molmasse	312,01 g/mol
Monoisotopische Masse	311,96257136 g/mol
SMILES	O.O.O.O.O.O.O.O=[As]([O-])([O-])O.[Na+].[Na+]
InChIKey	KOLXPEJIBITWIQ-UHFFFAOYSA-L
PubChem CID	61460
ChEMBL	CHEMBL3188962
ChEBI	CHEBI:91257
EC No.	677-900-0
DTXSID	DTXSID3032048

Chemische & physikalische Eigenschaften

Polarare Oberfläche (TPSA)	90,4
H-Brücken-Donoren	8
H-Brücken-Akzeptoren	11
Frei drehbare Bindungen	0
Schwere Atome	14
Formalladung	0
Komplexität	46,5
Stoffklassen	Metals -> Arsenic Compounds, Inorganic
pH	Alkaline to litmus8.5-9.0 (25°C, 50g/L)
Geruch	Odorless
Dichte	1.88 (NTP, 1992) - Denser than waterwill sink1.871.9 g/cm³1,88 g/cm3
Color/Form	Colorless, monoclinic crystals
Löslichkeit	greater than or equal to 100 mg/mL at 77 °F (NTP, 1992)5.46 g/100 cc water @ 0 °C100 g/100 cc water @ 100 °Csol in glycerolSolubility in water, g/100ml at 21 °C: 39H2O: slightly soluble(lit.)Soluble in water and glycerol.
Siedepunkt	356 °F at 760 mmHg (decomposes) (NTP, 1992)
Decomposition	When heated to decomp it emits toxic fumes of arsenic.180 °C
Schmelzpunkt	135 °F (NTP, 1992)57 °C when rapidly heated130 °C180 °C (dec.)(lit.)
Brechungsindex	Index of refraction: 1.462, 1.466 & 1.478
Physical Description	Sodium arsenate heptahydrate appears as odorless white crystals. Becomes anhydrous at 212 °F. Aqueous solution is alkaline to litmus. (NTP, 1992)Odorless solidEffloresces in warm air[Merck Index] Colorless solid[ICSC] White odorless solid[CAMEO] White crystalline solid[MSDSonline]COLOURLESS CRYSTALS.
Stability/Shelf Life	Effloresces in warm air
Aggregatzustand	Granular
Wichte	1.88
Farbe	White
Stabilität	Stable. Incompatible with strong reducing agents, strong oxidizing agents, strong acids. Incompatible with iron, aluminium and zinc in the presence of water.
InChI	1S/AsH3O4.2Na.7H2O/c2-1(3,4)5/h(H3,2,3,4,5)71H2/q2+1/p-2
InChIKey	KOLXPEJIBITWIQ-UHFFFAOYSA-L
SMILES	O.O.O.O.O.O.O.[Na+].[Na+].O[As]([O-])([O-])=O
CAS Datenbank	10048-95-0(CAS DataBase Reference)
EPA chemische Informationen	Disodium arsenate heptahydrate (10048-95-0)

Sicherheit & Vorschriften

GHS-Einstufung	DangerH301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]P203, P261, P264, P270, P271, P273, P280, P301+P316, P304+P340, P316, P318, P321, P330, P391, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 44 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H301: Toxic if swallowed [Danger Acute toxicity, oral]
Regulatorische Informationen	Chemical: Arsenic acid (H3AsO4), disodium salt, heptahydrateRestricted substance: Sodium arsenate dibasic heptahydrateSodium arsenate, dibasic, heptahydrate: HSNO Approval: HSR006141 Approved with controls
Weitere Sicherheitsinformationen	IMAP assessments - Pentavalent arsenate salts: Human health tier II assessment
DOT-Kennzeichnung	Poison
Brandgefahren	Literature sources indicate that this chemical is nonflammable. (NTP, 1992)Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on contact with metals. See Chemical Dangers.
Gesundheitsgefahren	SYMPTOMS: Symptoms of exposure to this class of compounds may include garlicky odor of the breath and feces, sweetish metallic taste, constriction of the throat, difficulty in swallowing, burning and colicky pains in the esophagus, stomach and bowelvomiting, profuse and painful diarrhea (feces may become bloody), dehydration with intense thirstmuscular cramps, hematuria, albuminuria, glycosuria, sinus tachycardia and occasionally ventricular arrhythmiascyanosis, feeble pulse, cold extremities, vertigo, headache, stupor, delirium, mania, syncope, coma, convulsions, general paralysis, ventricular fibrillation, peripheral neuropathy with sensory and motor involvement, severe gastritis or gastroenteritis, weakness, loss of fluid and electrolytes resulting in collapse, shock and deathmuscle spasm, encephalopathy, mild gastrointestinal disturbances, anorexia, low-grade fever, pallor, inflammation of the nose, throat, eyes and larynxstomatitis, salivation, skin afflictions such as erythema, eczema, pigmentation (arsenic melanosis), diffuse alopecia, keratosis (especially of the palms and soles), scaling and desquamation, brittle nails, white lines or bands in the nails (Mees lines), loss of hair and nails, and localized subcutaneous edema (especially of the eyelids)

Anwendungen & Verwendung

Verwenden

It is used as a source of soluble arsenic.