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131-69-1

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Solid-solid reaction between sulfacetamide and phthalic anhydride
Thermal and kinetic data for the solid-state addition reaction of sulfacetamide and phthalic anhydride are presented. A compaction method was used so that the influence of some pharmaceutical parameters (compressional pressure, particle size, concentration, and temperature) on the reaction kinetics could be observed.
Weng,Parrott
p. 1059 - 1063
(1984)
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Solid-state reaction between sulfacetamide and phthalic anhydride by grinding
Sulfacetamide reacted with phthalic anhydride in the solid state and was gradually converted into phthalylsulfacetamide with mechanical grinding. Formation of phthalylsulfacetamide was confirmed by high pressure liquid chromatography and Fourier transform infrared spectroscopy. The X-ray diffraction pattern of ground powder of sulfacetamide and phthalic anhydride mixture (1:1 by molar ratio) gradually became a halo with the formation of phthalylsulfacetamide, indicating that amorphous phthalylsulfacetamide was obtained by the solid-state reaction with mechanical grinding. The solid- state reaction between sulfacetamide and phthalic anhydride also occurred when a mixture of the two was heated. Crystalline phthalylsulfacetamide was formed by the solid-state reaction with heating.
Fukuoka,Makita,Yamamura,Yoshihashi
p. 1342 - 1344
(1994)
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Chemical Properties

Melting Point: 196°
Boiling Point: °Cat760mmHg
Flash Point:°C
Density: 1.478 g/cm3
Storage Temp.:Sealed in dry,Room Temperature
Refractive Index: 1.637
PSA: 138.02000
LogP: 3.00660

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