Benzenesulfinic acid, 4-chloro-, sodium salt (1:1)
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Benzenesulfinic acid, 4-chloro-, sodium salt (1:1)
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CAS No:
14752-66-0
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Formula:
C6H5ClO2S.Na
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Chemical Name:
Benzenesulfinic acid, 4-chloro-, sodium salt (1:1)
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Synonyms:
Benzenesulfinic acid,4-chloro-,sodium salt (1:1);Benzenesulfinic acid,p-chloro-,sodium salt;Benzenesulfinic acid,4-chloro-,sodium salt;Sodium p-chlorobenzenesulfinate;Sodium 4-chlorobenzenesulfinate;Sodium 4-chlorophenylsulfinate;Sodium p-chlorophenylsulfinate;4-Chlorobenzenesulfinic acid sodium salt;NSC 67146;53271-65-1;1423065-41-1
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CAS No:
Benzenesulfinic acid, 4-chloro-, sodium salt (1:1) Basic Attributes
198.6
197.95200
3575604
238-811-9
29309090
Characteristics
59.3
2.44370
white crystalline powder
300 °C
363.9°C at 760 mmHg
173.9ºC
almost transparency
6.22E-06mmHg at 25°C
Safety Information
III
24/25-22
P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501
H302
Benzenesulfinic acid, 4-chloro-, sodium salt (1:1) Use and Manufacturing
General procedure: A solution of sodium sulfite (17.93g, 142.26 mmol) in HTo chlorosulfonic acid (10 g, 86 mmol), chlorobenzene(3.23 g, 28 mmol) was added dropwise, not to increase temperature over 20°C. The solution was stirredat room temperature by 1 hour and it was slowly poured onto ice (50 g). The precipitate wasfiltered off, washed with water and added portionwise to the solution ofnatrium sulfite (7.5 g, 60 mmol) in water (28 mL) at temp. 80°C.The mixture was stirred at 90°Cby 1 hour and 50percent natrium hydroxide was slowly dropped to maintain pH= 8-9. Thehot mixture was filtered off and the filtrate was keep at room temperature for10 hours. The white crystals of product 4-chlorobenzenesulfinate natrium saltwas filtered off, washed by cold water and dried at room temperature. Product 3was obtained in 75percent yield (4.3 g). IR (cmUnder normal pressure, to a 100 mL three-necked flask with mechanical agitation, 25 mL of dichloromethane was added successively at 25 ° C, 6.2 mmol of chlorobenzene, 18.8 mmol of aluminum trichloride, 6.2 mmol of the above-mentioned self-made DABSO, and then heated to 30-35 ° C, the reaction 12-14h, liquid chromatography to the reaction solution chlorobenzene content of less than 5percent, and no longer reduced, The reaction ends. The post-treatment was carried out as in to give 1.08 g of sodium 4-chlorobenzenesulfinate as a white solid in 88percent yield.
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Business licensedTrader Supplier of Organic Intermediate,Organic Intermediate,Organic Intermediate,Organic Intermediate,Organic IntermediateInquiryUnit Price: $0.43-0.53 /KG FOBCAS No.: 14752-66-0Grade: Industrial GradeContent: 99%
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