24308-84-7

Basic information

• Product Name: Zinc benzenesulfinate dihydrate
• Synonyms: BENZENESUIFINIC ACID ZINC SALT;BENZENESULFINIC ACID ZINC SALT DEHYDRATE;BENZENESULFINIC ACID ZINC SALT DIHYDRATE;zincbenzenesulfinate;zincbis(benzenesulfinate);ZINC BENZENESULFINATE DIHYDRATE;ZBS;zinc bis(benzenesulphinate)
• CAS NO: 24308-84-7
• Molecular Formula: 2C₆H₅O₂S*Zn
• Molecular Weight: 383.76
• EINECS: 246-148-1
• Product Categories: Industrial/Fine Chemicals;Organic-metal salt;Pharmaceutical Intermediates
• Mol File: 24308-84-7.mol
• Article Data: 3

Chemical Properties

• Melting Point: 217-221 °C
• Boiling Point: 339.4 °C at 760 mmHg
• Flash Point: 159.1 °C
• Appearance: white powder
• Density: 1.701[at 20℃]
• Vapor Pressure: 3.58E-05mmHg at 25°C
• Water Solubility: 886.9mg/L at 20℃
• CAS DataBase Reference: Zinc benzenesulfinate dihydrate(CAS DataBase Reference)
• NIST Chemistry Reference: Zinc benzenesulfinate dihydrate(24308-84-7)
• EPA Substance Registry System: Zinc benzenesulfinate dihydrate(24308-84-7)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 2
• RTECS: DA9172500
• Hazardous Substances Data: 24308-84-7(Hazardous Substances Data)

Usage

Chemical Properties

Zinc benzenesulfinate dihydrate is white powder

Uses

Zinc benzenesulfinate dihydrate is used for lubricant stuffing, flame retardants and AC foaming agent, Activator could evidently improve product performance. This product non-toxic, do not belong to dangerous goods.

Flammability and Explosibility

Notclassified

InChI:InChI=1/2C6H6O2S.Zn/c2*7-9(8)6-4-2-1-3-5-6;/h2*1-5H,(H,7,8);/q;;+2/p-2

Synthetic route

benzenesulfonyl chloride (98-09-9) + zinc(II) oxide → zinc benzenesulfinate (24308-84-7)

Conditions	Yield
With sodium sulfite In water at 20℃; for 3h; Temperature; Reagent/catalyst; Reflux;	99.8%

benzenesulfonyl chloride (98-09-9) + zinc(II) chloride (7646-85-7) → zinc benzenesulfinate (24308-84-7)

Conditions	Yield
With sodium sulfite In water at 65 - 100℃; for 5h; pH=6 - 7; Reagent/catalyst; Temperature; pH-value;	98.1%

sodium benzenesulfonate (873-55-2) + zinc(II) chloride (7646-85-7) → zinc benzenesulfinate (24308-84-7)

Conditions	Yield
In water at 74℃; for 1.5h; Temperature;	99.4 mol

[(difluoromethyl)thio]methylbenzene (68965-44-6) + zinc benzenesulfinate (24308-84-7) → S-(difluoromethyl) benzenesulfonothioate

Conditions	Yield
Stage #1: [(difluoromethyl)thio]methylbenzene With chlorine In chloroform at -10℃; for 1h; Stage #2: zinc benzenesulfinate In chloroform at -10 - 20℃;	65%

Methyl 3-mercaptopropionate (2935-90-2) + zinc benzenesulfinate (24308-84-7) → methyl 3-phenylthiopropanoate (22198-59-0)

Conditions	Yield
With silver nitrate; palladium dichloride In dimethyl sulfoxide; N,N-dimethyl-formamide at 120℃; for 0.166667h; Microwave irradiation;	62%

diethyl diazodicarboxylate (4143-61-7) + zinc benzenesulfinate (24308-84-7) → diethyl 1-(phenylsulfonyl)hydrazine-1,2-dicarboxylate (57049-53-3)

Conditions	Yield
In dimethyl sulfoxide

Trifluoromethylsulfenyl chloride (421-17-0) + zinc benzenesulfinate (24308-84-7) → S-(trifluoromethyl) benzenesulfonothioate (15398-96-6)

Conditions	Yield
With N,N-dimethyl-formamide In diethyl ether
In diethyl ether byproducts: ZnCl2; 25-31°C;
In diethyl ether byproducts: ZnCl2; 25-31°C;

zinc benzenesulfinate (24308-84-7) → p-tolyl benzenethiosulfonate (17041-81-5)

Conditions	Yield
Multi-step reaction with 2 steps 1: DMF / diethyl ether 2: ethanol View Scheme

zinc benzenesulfinate (24308-84-7) → S-(4-nitrophenyl) benzenesulfonothioate (1150-28-3)

Conditions	Yield
Multi-step reaction with 2 steps 1: DMF / diethyl ether 2: ethanol View Scheme

Upstream product

• 873-55-2 sodium benzenesulfonate 
• 7646-85-7 zinc(II) chloride 
• 98-09-9 benzenesulfonyl chloride 

Downstream Products

• 15398-96-6 S-(trifluoromethyl) benzenesulfonothioate 
• 22198-59-0 methyl 3-phenylthiopropanoate 
• 1150-28-3 S-(4-nitrophenyl) benzenesulfonothioate 
• 17041-81-5 p-tolyl benzenethiosulfonate 
• 57049-53-3 diethyl 1-(phenylsulfonyl)hydrazine-1,2-dicarboxylate 

Relevant articles and documents

Preparation method of zinc benzenesulfinate compound

The invention relates to a preparation method of a zinc benzenesulfinate compound, namely, the zinc benzenesulfinate compound is prepared by mixing and reacting a benzenesulfonyl chloride compound, sodium sulfite, inorganic alkali and zinc salt in water through a one-step method. The method is simple in process, convenient to operate, high in product yield and good in quality; the method can be carried out on conventional equipment, and is a process route suitable for industrial production.

Preparation method of alkyl zinc sulfinate series compound

The invention relates to a preparation method of an alkyl zinc sulfinate series compound. Alkyl sulfonyl chloride is added into a mixed system of sodium sulfite, zinc oxide and water, an alkyl zinc sulfinate series product is obtained by a one-pot method, and salt-containing mother liquor provides a zinc source for zinc dialkyl dithiocarbamate. The method can be carried out on conventional equipment, no organic solvent is used, the operation is simple and convenient, and the safety is high; hydrolysis of alkyl sulfonyl chloride is effectively controlled, and the product yield is remarkably increased; and recycling of by-products is achieved.