
Characteristic description: monoclinic needle shaped or sheet-like crystals. Melting point 156 ℃ (147-148 ℃), benzenesulfonamide is insoluble in water but soluble in ethanol and ether. Easy to dissolve in alkali.
Physical constants:
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English: benzenesulphonamide
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CAS: 98-10-2
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molecular formula: C6H7NO2S
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molecular weight: 157.19
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Quality standards:
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number
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Specification Project
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indicator
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1
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appearance
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White crystalline powder
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2
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content
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≥99%
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3
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melting point
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≥152℃
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4
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moisture
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≤0.3%
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5
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chroma
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≤50APHA
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6
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Diphenyl sulfone
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≤0.3%
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7
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chloride
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≤300ppm
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|
8
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free acid
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≤0.2%
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Usage: For organic synthesis and pharmaceutical intermediates
