HFC-245fa (1,1,1,3,3-Pentafluoropropane)
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Value (LD50 or LC50)
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Animal
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Routes
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Components
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> 100,000 ppm/4h
no deaths
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Mouse
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Acute Inhalation
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1,1,1,3,3-Pentafluoropropane
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> 200,000 ppm/4h
no deaths
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Rat
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Acute Inhalation
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1,1,1,3,3-Pentafluoropropane
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> 2,000 mg/kg
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Rabbit
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Acute Dermal
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1,1,1,3,3-Pentafluoropropane
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Read more...
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There are no translations available
INTRODUCTION
Replacements for
chloroflurorcarbon (CFC) were developed using HCFCs
(hydro-chloro-fluoro-carbons) and HFCs (hydro-fluoro-carbons). In
addition to use of pure fluids such as the HFC
1,1,1,2-tetrafluoroethane (R134a), numerous blends and azeotropes
based on HFCs and HCFCs were developed. Today these refrigerants,
among them R-410A, R-507, R-407C, R-404A, R-408A, R-402A, R-409A are
familiar to most everyone in the HVAC&R industry.
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There are no translations available
Journal of Cellular Plastics, Vol. 33, No. 3,
238-263 (1997)
DOI: 10.1177/0021955X9703300304
© 1997 SAGE Publications
Update on the Development of HFC-245fa as a Liquid HFC Blowing Agent
D. J. Williams
AlliedSignal, Inc., 20 Peabody Street, Buffalo, NY 14210
M. C. Bogdan
AlliedSignal, Inc., 20 Peabody Street, Buffalo, NY 14210
R. C. Parker
AlliedSignal, Inc., 20 Peabody Street, Buffalo, NY 14210
G. M. Knopeck
AlliedSignal, Inc., 20 Peabody Street, Buffalo, NY 14210
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There are no translations available
El poliuretano es por lo general la mezcla de dos componentes o sistema
bi-componente: el A y el B en una proporción estequiométricamente
definida por el químico que diseña la fórmula. Existen además
poliuretano monocomponentes que se usan para la industria de la
construcción.
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There are no translations available
Los poliuretanos se clasifican en dos formas principalmente: Rígidas y Flexibles.
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Información Técnica 
