Tributylphosphat

Bezeichnung:Tributylphosphat

CAS-Nr126-73-8

Englisch Name:Tributyl phosphate

CBNumberCB4187323

SummenformelC12H27O4P

Molgewicht266.31

MOL-Datei126-73-8.mol

Synonyma

Tributylphosphat

Tri-n-butylphosphat

Butylphosphat

Tributylphosphat physikalisch-chemischer Eigenschaften

Schmelzpunkt	-79 °C (lit.)
Siedepunkt	180-183 °C/22 mmHg (lit.)
Dichte	0.979 g/mL at 25 °C (lit.)
Dampfdichte	9.2 (vs air)
Dampfdruck	27 mm Hg ( 178 °C)
Brechungsindex	n20/D 1.424(lit.)
Flammpunkt	380 °F
storage temp.	Store below +30°C.
Löslichkeit	water: soluble1ml in 165ml water
Aggregatzustand	Liquid
Farbe	Clear
Geruch (Odor)	Odorless
Wasserlöslichkeit	0.6 g/100 mL
Merck	14,9618
BRN	1710584
Expositionsgrenzwerte	TLV-TWA 2.18 mg/m³ (0.2 ppm) (ACGIH), 5 mg/m³ (OSHA and NIOSH); IDLH 1300 mg/m³ (120 ppm) (NIOSH).
Dielectric constant	6.5（20℃）
Stabilität	Stable. Combustible. Incompatible with strong oxidizing agents. May be water sensitive.
LogP	4 at 20℃
CAS Datenbank	126-73-8(CAS DataBase Reference)
NIST chemische Informationen	Tri-n-butylphosphate(126-73-8)
EPA chemische Informationen	Tributyl phosphate (126-73-8)

Sicherheit

Kennzeichnung gefährlicher	Xn,F
R-Sätze:	22-38-40-62-48/20-36/37/38-11-20/22
S-Sätze:	36/37-46-45-36/37/39-16-53
RIDADR	UN 1208 3/PG 2
OEB	B
OEL	TWA: 0.2 ppm (2.5 mg/m3)
WGK Germany	2
RTECS-Nr.	TC7700000
Selbstentzündungstemperatur	770 °F
TSCA	Yes
HS Code	29190010
Giftige Stoffe Daten	126-73-8(Hazardous Substances Data)
Toxizität	LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter)
IDLA	30 ppm

Gefahreninformationscode (GHS)

Tributyl phosphate Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSE, GERUCHLOSE, VISKOSE FLüSSIGKEIT.
CHEMISCHE GEFAHREN
Zersetzung beim Verbrennen unter Bildung giftiger Rauche mit Phosphoroxiden.
ARBEITSPLATZGRENZWERTE
TLV: 0.2 ppm (als TWA); BEI vorhanden; (ACGIH 2005).
MAK: 1 ppm (als TWA); Hautresorption; Spitzenbegrenzung: überschreitungsfaktor II(4); Krebserzeugend Kategorie 4; Schwangerschaft: Gruppe C; (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation der Dämpfe, über die Haut und durch Verschlucken.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C tritt eine gesundheitsschädliche Kontamination der Luft nicht oder nur sehr langsam ein , viel schneller jedoch beim Versprühen oder Dispergieren.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt stark die Augen, die Haut und die Atemwege.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Beim Verschlucken sind Auswirkungen auf die Blase mit nachfolgenden Gewebeschädenmöglich .
LECKAGE
Persönliche Schutzausrüstung: Atemschutzfilter für organische Gase und Dämpfe. NICHT in die Umwelt gelangen lassen. Ausgelaufene Flüssigkeit in abdichtbaren Behältern sammeln. Keine Kunststoffbehälter benutzen. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen.
R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R38:Reizt die Haut.
R40:Verdacht auf krebserzeugende Wirkung.
R62:Kann möglicherweise die Fortpflanzungsfähigkeit beeinträchtigen.
R48/20:Gesundheitsschädlich: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R11:Leichtentzündlich.
S-Sätze Betriebsanweisung:
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S46:Bei Verschlucken sofort ärztlichen Rat einholen und Verpackung oder Etikett vorzeigen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
Beschreibung
On decomposition, TBP releases COx, toxic fumes of phosphoric acid, phosphorus oxides, and/or phosphine. TBP is incompatible with strong oxidising agents and alkalis. The major uses of TBP in industry are as a component of aircraft hydraulic fluid and as a solvent for rare earth extraction and purification. Minor uses of TBP include use as a defoamer additive in cement casings for oil wells, an anti-air entrainment additive for coatings and floor finishes, as well as a carrier for fluorescent dyes. The major uses of TBP comprise over 80% of the volume produced.
Chemische Eigenschaften
Stable, colorless liquid; odorless. Miscible with most solvents and diluents; soluble in water. Combustible.
Physikalische Eigenschaften
Clear, colorless to pale yellow, odorless, slightly flammable, oily liquid
Verwenden
Tributyl phosphate is used as a plasticizer for cellulose esters, vinyl resins, and lacquers; and in making fireretardants, biocides, defoamers, and catalysts.
Verwenden

Tributyl phosphate is used as an antifoaming agent; plasticizer for cellulose esters, lacquers, plastic, and vinyl resins; component in hydraulic fluids for aircraft control systems.
Verwenden
Plasticizer for cellulose esters, lacquers, plastics, and vinyl resins.
Definition
ChEBI: A trialkyl phosphate that is the tributyl ester of phosphoric acid.
Vorbereitung Methode
Prepared by the reaction of phosphorus oxychloride with butyl alcohol.
Allgemeine Beschreibung
Tributyl phosphate is an organophosphorus compound, which is widely used as a flame retardant and plasticizer in a variety of industrial products.
Air & Water Reaktionen
Water insoluble. Reacts slowly with water under basic conditions.
Reaktivität anzeigen
Tributyl phosphate is incompatible with strong oxidizing agents and strong bases. Attacks some forms of plastics and rubber .
Health Hazard
Tributyl phosphate is a neurotoxic compound and an irritant. The toxic effects are characteristic of organic phosphates. It inhibits cholinesterase activity and causes paralysis. Inaddition,itcancausedepressionofthecentralnervoussystem,aswellasirritationofthe skin,eyes,andrespiratorypassage.Inhalation toxicity data in the literature are inconsistent.
The oral toxicity in rats was low; the LD50 value was reported as 1189 mg/kg (NIOSH 1986).
The pure liquid instilled into rabbits’ eyes caused severe irritation but no permanent damage. The irritation effect on the skin is mild.
Tributyl phosphate exhibited teratogenic effects in rats. There is no report on its carcinogenicity..
Brandgefahr
Special Hazards of Combustion Products: Toxic fumes of PO x
Industrielle Verwendung
1. As an antifoaming agent.
2. As a plasticizer for cellulose esters, lacquers, plastics, and vinyl resins.
3. As a complexing agent in the extraction of heavy metals, especially for the extraction of metal ions from solutions of reactor products in nuclear fuel reprocessing.
4. As an aircraft hydraulic fluid.
5. As a heat exchange medium and dielectric.
6. As a pigment-grinding agent.
Sicherheitsprofil
Poison by intraperitoneal and intravenous routes. Moderately toxic by ingestion, inhalation, and subcutaneous routes. Experimental reproductive effects. A skin, eye, and mucous membrane irritant. Combustible when exposed to heat or flame. To fight fire, use CO2, dry chemical, fog, mist. When heated to decomposition it emits toxic fumes of POx.
Carcinogenicity
TBP was not genotoxic in a variety of in vivo and in vitro assays.7 It has been suggested that the carcinogenic effects of TBP are species- and organ specific. The necrotic actions of TBP (or a metabolite) on rat urinary bladder epithelium may induce chronic repair processes that cause the normal epithelium to be transformed into its metaplastic and neoplastic forms.
TBP was not teratogenic when administered to rats and rabbits during gestation; fetotoxic effects (delayed ossification and reduced fetal body weights) occurred in rats at doses that caused severe maternal toxicity. There was no evidence of reproductive toxicity or reproductive organ pathology in twogeneration studies in rats fed TBP in the diet.
Environmental Fate
Biological. Indigenous microbes in Mississippi River water degraded tributyl phosphate to carbon dioxide. After 4 wk, 90.8% of the theoretical carbon dioxide had evolved (Saeger et al., 1979).
Chemical/Physical. Complete hydrolysis yields 1-butanol and phosphoric acid via the intermediates dibutyl phosphate and monobutyl phosphate (Thomas and Macaskie, 1996).
läuterung methode
The main contaminants in commercial samples are organic pyrophosphates, monoand dibutyl phosphates and butanol. It is purified by washing successively with 0.2M HNO3 (three times), 0.2M NaOH (three times) and water (three times), then fractionally distilled under vacuum. [Yoshida J Inorg Nucl Chem 24 1257 1962.] It has also been purified via its uranyl nitrate addition compound, obtained by saturating the crude phosphate with uranyl nitrate. This compound is crystallised three times from n-hexane by cooling to -40o, and then decomposed by washing with Na2CO3 and water. Hexane is removed by steam distillation; the water is then evaporated under reduced pressure, and the residue is distilled under reduced pressure. [Siddall & Dukes J Am Chem Soc 81 790 1959.] Alternatively, wash it with water, then with 1% NaOH or 5% Na2CO3 for several hours, then finally with water. Dry it under reduced pressure and fractionate it carefully under vacuum. It is a stable colourless oil, sparingly soluble in H2O (1mL dissolves in 165mL of H2O), but freely miscible in organic solvents. [Kuivila & Masterton J Am Chem Soc 74 4953 1952, Cox & Westheimer J Am Chem Soc 80 5441 1958, 31P NMR: Van Wazer J Am Chem Soc 78 5715 1956, Fertig et al. J Chem Soc 1488 1957, Beilstein 1 IV 1531.]
Waste disposal
Tributyl phosphate is dissolved in a combustible solvent and is burned in a chemical incinerator equipped with an afterburner and scrubber.

Tributyl phosphate Upstream-Materialien And Downstream Produkte

Tributylphosphat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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