TEPP (ISO) Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSE HYGROSKOPISCHE FLüSSIGKEIT.
CHEMISCHE GEFAHREN
Zersetzung beim Erhitzenüber 150°C unter Bildung von entzündlichem Gas (Ethylen) und giftigen Rauchen mit Phosphoroxiden. Greift einige Kunststoff-, Gummi- und Beschichtungsarten an. Ver?tzt die meisten Metalle.
ARBEITSPLATZGRENZWERTE
TLV: 0,05 mg/m?(als TWA); Hautresorption; BEI vorhanden; (ACGIH 2005).
MAK: 0,005 ppm 0,06 mg/m? Spitzenbegrenzung: überschreitungsfaktor II(2); Hautresorption; (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Inhalation, über die Haut, durch Verschlucken und über die Augen.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C kann schnell eine gesundheitssch?dliche Kontamination der Luft eintreten, beim Versprühen sehr viel schneller.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Die Substanz reizt die Augen und die Haut. M?glich sind Auswirkungen auf das Zentralnervensystem mit nachfolgenden Kr?mpfen, Atemversagen und Tod. Cholinesterasehemmer. Die Auswirkungen treten u.U. verz?gert ein. ?rztliche Beobachtung notwendig. (s.Anm.)
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Cholinesterasehemmer. Kumulative Wirkung m?glich (s. AKUTE GEFAHREN/SYMPTOME).
LECKAGE
Ausgelaufene Flüssigkeit m?glichst in abdichtbaren Beh?ltern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen. NICHT in die Kanalisation spülen. Pers?nliche Schutzausrüstung: Vollschutzanzug mit umgebungsluftunabh?ngigem Atemschutzger?t. NICHT in die Umwelt gelangen lassen.
R-S?tze Betriebsanweisung:
R27/28:Sehr giftig bei Berührung mit der Haut und beim Verschlucken.
R50:Sehr giftig für Wasserorganismen.
S-S?tze Betriebsanweisung:
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S38:Bei unzureichender Belüftung Atemschutzger?t anlegen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Chemische Eigenschaften
Water-white to amber liquid depending
on purity; hygroscopic. Miscible
with water and all organic solvents except aliphatic
hydrocarbons; hydrolyzed in water with formation
of mono-, di-, and triethyl orthophosphates; water
solutions attack metals; commercial material contains
40% TEPP.
Physikalische Eigenschaften
Colorless to amber liquid with an agreeable, fruity odor
Verwenden
Insecticide for aphids and mites, rodenticide.
Allgemeine Beschreibung
Water-white to amber liquid, depending on purity.
Air & Water Reaktionen
Hygroscopic. Hydrolyzed in water with formation of mono. di, and triethyl orthophosphates, water solutions attack metal surfaces. Reacts slowly with water to form phosphoric acid
Reaktivit?t anzeigen
Organophosphates, such as TETRAETHYL PYROPHOSPHATE, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Hazard
Toxic by skin contact, inhalation, or
ingestion; rapidly absorbed through skin; repeated
exposure may, without symptoms, be increasingly
hazardous; cholinesterase inhibitor, use may be
restricted.
Health Hazard
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Brandgefahr
Combustible material: may burn but does not ignite readily. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Sicherheitsprofil
Human poison by ingestion and intramuscular routes. Experimental poison by ingestion, skin contact, intraperitoneal, intramuscular, subcutaneous, parenteral, and intravenous routes. Human systemic effects by ingestion, intramuscular, and parenteral routes: paresthesia, wakefulness, excitement, muscle contraction or spasticity, nausea or vomiting and other gastrointestinal changes. The action is sidar to that of parathion: causing an irreversible inhbition of the cholinesterase molecules and the consequent accumulation of large amounts of acetylcholine. Small doses at frequent intervals are largely additive. When heated to decomposition it emits toxic fumes of POx. See also PARATHION.
m?gliche Exposition
A potential danger to those engaged in the manufacture, formulation and application of this aphicide and acaricide; used as an insecticide to control aphids, thrips, and mites; as an anticholinesterase.
Environmental Fate
Chemical/Physical. Tetraethyl pyrophosphate is quickly hydrolyzed by water. The
hydrolysis half-lives at 25 and 38°C are 6.8 and 3.3 hours, respectively (Sittig, 1985).
Decomposes at 170–213°C releasing large amounts of ethylene (Hartley and Kidd,
1987; Keith and Walters, 1992).
Versand/Shipping
UN2810 Toxic liquids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3018 Organophosphorus pesticides, liquid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. Note: See T:0305 for TEPP 1compressd gas.
Inkompatibilit?ten
Tetraethyl pyrophosphate may be susceptible to formation of highly toxic and flammable phosphine gas in the presence of hydrides and other strong reducing agents. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides. Hygroscopic. Hydrolyzed in water with formation of mono. di-, and triethyl-orthophosphates. Reacts slowly with cold water forming phosphoric acid. Attacks metals in the presence of water.
Waste disposal
Return refillable compressed gas cylinders to supplier. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. TEPP is 50% hydrolyzed in water in 6.8 hours @ 25℃, and 3.3 hours @ 38℃; 99% hydrolysis requires 45.2 hours @ 25 ℃, or 21.9 hours @ 38℃. Hydrolysis of TEPP yields nontoxic products. Incineration is, however, an option for TEPP disposal. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.
TEPP (ISO) Upstream-Materialien And Downstream Produkte
Upstream-Materialien
1,2,4-Triazin-6(1H)-one, 2,5-dihydro-5-(1-methylethyl)-
1,2,4-Triazin-6(1H)-one, 2,5-dihydro-5-methyl-
Phosphoramidic acid, N-(phenylmethyl)-, diethyl ester
MONOTHIONO TEPP
Benzaldehyd
Triethylorthoformiat
N-Benzylidenbenzylamin
Diethylhydrogenphosphat
Diethylphosphonat
Diethylchlorphosphat
Downstream Produkte
