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Product Name |
Bis(4-hydroxyphenyl) Sulfone |
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Formula |
C12H10O4S |
Molecular Weight |
250.27 |
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CAS NO. |
80-09-1 |
Quantity |
500KG |
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Items |
Specification |
Results |
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Appearance |
Colorless crystal |
Conforms |
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Assay |
≥99% |
99.1% |
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Boiling point
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363.4°C | 363.4°C |
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CONCLUSION |
The result conform with standard |
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Melting point 245-250 ° C (L)
Boiling point 363.4 ° C (rough estimate)
Density 1.366
Steam pressure <0.0001pa (20 ° C)
Refractive index 1.5220 (estimated)
Low temperature +30 ° C storage conditions
Solubility 1.1g/l
Morphology crystalline powder
Acidity coefficient (PKA) 7+- 0.15 (forecast)
The color is white to grayish green
PH value 6.6-7.0 (100g/l, H2O, 20 ℃)
4,4 '- dihydroxydiphenylsulfone is mainly used as a color fixing agent. In addition, it can be used as plating solution additive, leather tanning agent, dispersant of disperse dyes for high temperature dyeing, phenolic resin hardening accelerator, resin flame retardant, etc. It is also an intermediate of pesticides, dyes and additives. As a substitute of bisphenol A, it can be used as the raw material of polycarbonate, epoxy resin, chemicalbook polyester and phenolic resin, as well as the raw material of polysulfone and polyethersulfone. It is also used in the manufacture of color photographic materials, photographic contrast enhancers, thermal recording materials (chromogenic agents), daily surfactants and high-efficiency deodorants. Using bisphenol s as raw material, color fixing agent a (foreign trade name cibatexpa) can be prepared.
