126-83-0

Basic information

• Product Name: 3-CHLORO-2-HYDROXYPROPANESULFONIC ACID SODIUM SALT
• Synonyms: 1-Propanesulfonic acid,3-chloro-2-hydroxy-, sodiuM salt (1:1);Sodium 3-Chloro-2-hydroxypropanesulfonate(CHPS-Na);1-Chloro-2-hydroxy-propane-3-sulfonicacid,sodiumsalt;1-Propanesulfonicacid,3-chloro-2-hydroxy-,monosodiumsalt;3-Chloro-2-hydroxy-1-propanesulfonicacid,sodiumsalt;3-chloro-2-hydroxy-1-propanesulfonicacimonosodiumsalt;sodium2-hydroxy-3-chloropropanesulfonate;sodium3-chloro-2-hydroxy-1-propanesulfonate
• CAS NO: 126-83-0
• Molecular Formula: C3H6ClNaO4S
• Molecular Weight: 196.59
• EINECS: 204-807-0
• Mol File: 126-83-0.mol

Chemical Properties

• Appearance: white crystalline powder
• Density: 1.649 g/cm3
• Vapor Pressure: 0Pa at 20℃
• Storage Temp.: Inert atmosphere,Room Temperature
• Solubility: Soluble in water
• Water Solubility: 405g/L at 20℃
• CAS DataBase Reference: 3-CHLORO-2-HYDROXYPROPANESULFONIC ACID SODIUM SALT(CAS DataBase Reference)
• NIST Chemistry Reference: 3-CHLORO-2-HYDROXYPROPANESULFONIC ACID SODIUM SALT(126-83-0)
• EPA Substance Registry System: 3-CHLORO-2-HYDROXYPROPANESULFONIC ACID SODIUM SALT(126-83-0)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• Hazardous Substances Data: 126-83-0(Hazardous Substances Data)

Usage

Chemical Properties

White crystalline powder

Flammability and Explosibility

Notclassified

InChI:InChI=1/C3H7ClO4S.Na/c4-1-3(5)2-9(6,7)8;/h3,5H,1-2H2,(H,6,7,8);/q;+1/p-1

Synthetic route

epichlorohydrin (106-89-8) → sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0)

Conditions	Yield
With sodium hydrogensulfite In water at 85℃;	80.6%
With sodium hydrogensulfite In water
With sodium hydrogen sulfate In water

sodium metabisulfite + epichlorohydrin (106-89-8) → sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0)

Conditions	Yield
In sodium hydroxide; water	50%
In sodium hydroxide; water	50%

1,3-Dichloro-2-propanol (96-23-1) + Na2SO3 → sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0)

Conditions	Yield
With water

epichlorohydrin (106-89-8) + NaHSO3 → sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0)

Conditions	Yield
With water at 15℃;
beim Erhitzen auf dem Wasserbad;

sodium hydrogensulfite + epichlorohydrin (106-89-8) + sodium sulfite (7757-83-7) → sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0)

Conditions	Yield
In water	424.0 g (82%)

sodium hydrogensulfite + epichlorohydrin (106-89-8) → sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0)

Conditions	Yield
In not given 100°C;
In not given 100°C;

epoxychloropropane (66794-22-7) → sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0)

Conditions	Yield
With sodium sulfate under 1034.32 Torr; Inert atmosphere; Heating;

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + dimethyl amine (124-40-3) → 3-(dimethylamino)-2-hydroxy-1-propanesulfonic acid sodium salt

Conditions	Yield
In water at 2.8 - 20℃;	100%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-erucamidopropyl-N,N-dimethylamine (149968-48-9) → erucyl dimethylamidopropyl hydroxy sulfobetaine (164118-71-2)

Conditions	Yield
With sodium hydroxide In water; isopropyl alcohol at 78℃; for 12h;	92%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-methyldodecylamine (7311-30-0) → 2-hydroxy-3-(N-methyldodecylammonio)propanesulfonate (1414933-00-8)

Conditions	Yield
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 130℃; for 24h; Inert atmosphere;	91%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + Dimethyl-((E)-octadec-9-enyl)-amine → C23H47NO4S

Conditions	Yield
at 80℃; for 6h;	90.43%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + tris(4-aza-2-hydroxydodecyl)amine (175897-85-5) + butan-1-ol (71-36-3) → tris(4-aza-2,6-dihydroxy-4-octyl-7-sulfoheptyl)amine

Conditions	Yield
In ethanol	88.2%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + C31H56N2O → C34H62N2O5S

Conditions	Yield
In methanol at 130℃; under 2250.23 Torr; for 10h;	88%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-(2-perfluorobutyl)ethyl dipropylamine → C15H24F9NO4S

Conditions	Yield
In isopropyl alcohol for 14h; Reflux;	88%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-(1,1,2,3,3,4,4,5,5-decafluorobutyl)dipropylamine → C16H23F12NO4S

Conditions	Yield
In water; isopropyl alcohol for 16h; pH=9; Reflux;	87.8%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-perfluorohexyldiethanolamine → C11H12F13NO6S

Conditions	Yield
In water; isopropyl alcohol for 16h; pH=9; Reflux;	86.2%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-(2-perfluorohexyl)methyl diethanolamine → C14H18F13NO6S

Conditions	Yield
In water; isopropyl alcohol for 16h; pH=9; Reflux;	85.7%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) → sodium 2,3-epoxypropanesulfonate

Conditions	Yield
With sodium phosphate In water at 55℃; for 4h;	85.2%
With sodium phosphate In water at 55℃; for 4h;

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-(2-perfluorohexyl)ethyl diallylamine → C17H20F13NO4S

Conditions	Yield
In water; isopropyl alcohol for 16h; pH=9; Reflux;	85.2%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoro-1-octyl diethanolamine (27607-35-8) → C15H20F13NO6S

Conditions	Yield
In water; isopropyl alcohol for 16h; pH=9; Reflux;	84.4%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-ethyl-m-toulidine (102-27-2) → N-ethyl-N-(2-hydroxy-3-sulfonatopropyl)-3-methylaniline sodium salt (82692-93-1)

Conditions	Yield
With sodium hydroxide In water; isopropyl alcohol for 3h; Heating;	83.4%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-(2-perfluorobutyl)ethyl dibenzylamine → C23H24F9NO4S

Conditions	Yield
In water; isopropyl alcohol for 18h; pH=9; Reflux;	83.2%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + 3-(3,5-di-tert-butyl-4-hydroxyphenyl)-N-(2-di-methylaminoethyl)propanamide → 3-({2-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanamido]ethyl}-N,N-dimethylammonium)-2-hydroxypropane-1-sulfonate

Conditions	Yield
Stage #1: sodium 3-chloro-2-hydroxypropane-sulfonate; 3-(3,5-di-tert-butyl-4-hydroxyphenyl)-N-(2-di-methylaminoethyl)propanamide In water; isopropyl alcohol for 6h; Reflux; Stage #2: With sodium carbonate In water; isopropyl alcohol for 7h; Reflux;	83%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N,N-dimethyl-2-propen-1-amine (2155-94-4) → C8H17NO4S

Conditions	Yield
In ethanol at 80℃; for 12h; Temperature; Inert atmosphere;	83%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + 3-(3,5-di-tert-butyl-4-hydroxyphenyl)-N-(3-di-methylaminopropyl)propanamide → 3-({3-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanamido]propyl}-N,N-dimethylammonium)-2-hydroxypropane-1-sulfonate

Conditions	Yield
Stage #1: sodium 3-chloro-2-hydroxypropane-sulfonate; 3-(3,5-di-tert-butyl-4-hydroxyphenyl)-N-(3-di-methylaminopropyl)propanamide In water; isopropyl alcohol Reflux; Stage #2: With sodium carbonate In water; isopropyl alcohol Reflux;	80%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-ethyl-N-phenylamine (103-69-5) → sodium salt of N-ethyl-N-(2-hydroxy-3-sulfopropyl)aniline (82692-89-5)

Conditions	Yield
With sodium hydroxide In water; isopropyl alcohol for 3h; Heating;	79%

Quinuclidine (100-76-5) + sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) → 1-(3-sulfo-2-hydroxypropyl)quinuclidinium inner salt

Conditions	Yield
Stage #1: Quinuclidine; sodium 3-chloro-2-hydroxypropane-sulfonate In 1,4-dioxane; water at 80℃; for 3h; Stage #2: With Dowex 50x8	77%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + 3,5-dimethyl-N-ethylaniline (13342-22-8) → sodium salt of 3,5-dimethyl-N-ethyl-N-(2-hydroxy-3-sulfopropyl)aniline (82692-97-5)

Conditions	Yield
With sodium hydroxide In water; isopropyl alcohol for 3h; Heating;	68%

piperidine (110-89-4) + sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) → 2-hydroxy-3-piperidin-1-ylpropane-1-sulfonic acid

Conditions	Yield
Stage #1: piperidine; sodium 3-chloro-2-hydroxypropane-sulfonate In water at 70 - 80℃; for 7h; Stage #2: With Dowex 50x8	68%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + N-ethyl-m-anisidine (41115-30-4) → sodium salt of N-ethyl-N-(2-hydroxy-3-sulfopropyl)-m-anisidine (82692-96-4)

Conditions	Yield
With sodium hydroxide In water; isopropyl alcohol for 3h; Heating;	65%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + oxiranyl-methanol (556-52-5) → 1-hydroxy-2-sulfoethyl-N,N-dimethyl-N-(2,3-dihydroxypropyl)-N-methaneaminium hydroxide

Conditions	Yield
With dimethyl amine In nitrogen; water	65%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + 3,5-dimethoxy-phenylethylamine (73674-62-1) → sodium salt of 3,5-dimethoxy-N-ethyl-N-(2-hydroxy-3-sulfopropyl)aniline (83777-30-4)

Conditions	Yield
With sodium hydroxide In water; isopropyl alcohol for 3h; Heating;	61%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + tert-butylamine (75-64-9) → 3-(tert-butylamino)-2-hydroxy-1-propanesulfonic acid

Conditions	Yield
Stage #1: sodium 3-chloro-2-hydroxypropane-sulfonate; tert-butylamine In methanol; water at 35 - 45℃; for 3.56h; Stage #2: With Dowex 50x8	59%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + benzylamine (100-46-9) → 1-(N-benzylamino)-2-hydroxy-1-propanesulfonic acid sodium salt

Conditions	Yield
In 1,4-dioxane; water at 80℃; for 4.5h;	50%

sodium 3-chloro-2-hydroxypropane-sulfonate (126-83-0) + (3-tert-butyl-4-methoxybenzyl)-piperazine dihydrochloride → 3-(1-(3-tert-butyl-4-methoxybenzyl)piperazine-4-yl)-2-hydroxy-1-propanesulfonic acid potassium salt (1383744-17-9)

Conditions	Yield
Stage #1: (3-tert-butyl-4-methoxybenzyl)-piperazine dihydrochloride With potassium hydrogencarbonate In water Stage #2: sodium 3-chloro-2-hydroxypropane-sulfonate With potassium iodide In water for 5h; Reflux;	45%

Upstream product

• 96-23-1 1,3-Dichloro-2-propanol 
• 106-89-8 epichlorohydrin 
• 7757-83-7 sodium sulfite 
• 66794-22-7 epoxychloropropane 

Downstream Products

• 82692-97-5 sodium salt of 3,5-dimethyl-N-ethyl-N-(2-hydroxy-3-sulfopropyl)aniline 
• 82692-96-4 sodium salt of N-ethyl-N-(2-hydroxy-3-sulfopropyl)-m-anisidine 
• 83777-30-4 sodium salt of 3,5-dimethoxy-N-ethyl-N-(2-hydroxy-3-sulfopropyl)aniline 
• 82692-89-5 sodium salt of N-ethyl-N-(2-hydroxy-3-sulfopropyl)aniline 
• 82692-93-1 N-ethyl-N-(2-hydroxy-3-sulfonatopropyl)-3-methylaniline sodium salt 
• 106-89-8 epichlorohydrin 
• 68399-77-9 3-(N-Morpholino)-2-hydroxypropanesulfonic acid 
• 115010-26-9 Sodium 2-hydroxy-3-(4-benzoylphenoxy)propane sulphonate 
• 107-57-3 3-chloro-2-hydroxypropane-1-sulfonic acid 
• 1383744-17-9 3-(1-(3-tert-butyl-4-methoxybenzyl)piperazine-4-yl)-2-hydroxy-1-propanesulfonic acid potassium salt 
• 76201-56-4 C₁₆H₂₃F₁₃N₂O₆S₂ 

Relevant articles and documents

Synthesis and properties of lauric acid-2-hydroxy-3-propane sulfonic acid sodium salt

The lauric acid-2-hydroxy-3-propane sulfonic acid sodium salt was synthesized by using sodium bisulfite, epichlorohydrin, sodium phosphate and lauric acid. The influence factors on reaction temperature, reaction time, the amount of catalyst and reactant molar ratio to the yield were investigated. The favorable conditions of synthesizing were determined:epichlorohydrin was added into the solution of sodium bisulfite of 85 °C, stirring for 2 h and left for 1.5 h. 3-Chloro-2-hydroxy-propane sulfonic acid sodium was synthesized. 3-Chloro-2-hydroxy-propane sulfonic acid sodium was mixed into the solution of sodium phosphate at 55 °C and 4 h reaction time. The 2,3-oxiranemethane sulfonic acid sodium salt was formed. 2,3-Oxiranemethane sulfonic acid sodium salt solution was dropped into the solution of lauric acid at 90 °C, the dropping time 0.5 h and left for 2.5 h. Lauric acid-2-hydroxy-3-propane sulfonic acid sodium salt was obtained. The yield was 85.2 % and was characterized by FTIR.

A novel water-soluble hydrophobically associating polyacrylamide based on oleic imidazoline and sulfonate for enhanced oil recovery

3-(2-(2-Heptadec-8-enyl-4,5-dihydro-imidazol-1-yl)ethylcarbamoyl)acrylic acid (NIMA), 3-(diallyl-amino)-2-hydroxypropyl sulfonate (NDS), acrylamide (AM) and acrylic acid (AA) were successfully utilized to prepare novel acrylamide-based copolymers (named AM/AA/NIMA and AM/AA/NDS/NIMA) which were functionalized by a combination of imidazoline derivative and/or sulfonate via redox free-radical polymerization. The two copolymers were characterized by infrared (IR) spectroscopy, 1H nuclear magnetic resonance (1H NMR), viscosimetry, pyrene fluorescence probe, thermogravimetry (TG) and differential thermogravimetry (DTG). As expected, the polymers exhibited excellent thickening property, shear stability (viscosity retention rate 5.02% and 7.65% at 1000 s-1) and salt-tolerance (10:000 mg L-1 NaCl: viscosity retention rate up to 17.1% and 10.2%) in comparison with similar concentration partially hydrolyzed polyacrylamide (HPAM). The temperature resistance of the AM/AA/NDS/NIMA solution was also remarkably improved and the viscosity retention rate reached 54.8% under 110 °C. According to the core flooding tests, oil recovery could be enhanced by up to 15.46% by 2000 mg L-1 of the AM/AA/NDS/NIMA brine solution at 80 °C.

Synthesis, characterization and performance of unsaturated long-chain carboxybetaine and hydroxy sulfobetaine

The unsaturated long-chain carboxybetaine and hydroxy sulfobetaine were synthesized by the reaction of unsaturated octadecyl tertiary amine with sodium chloroacetate and 3-chloro-2-hydroxypropanesulfonic acid sodium salt, respectively. The structures of the two betaines were characterized by IR and 1H-NMR spectroscopy. The Krafft points of the two betaines are below 0 C and the isoelectric points are at pH 8.2 and 8.0, respectively. The surface tensions (γ CMC) at the critical micelle concentrations (CMC) were measured to investigate the surface activities of the prepared compounds when the pH is equal to 4.0, 6.5 and 10.0 at 50 C, respectively. Meanwhile, the corresponding saturated betaines were synthesized and determined for comparison. The double bond in the non-polar tail leads to a slightly higher CMC and a lower γ CMC. Though the CMC of the unsaturated betaine is slightly higher than that of saturated betaine for the double bond in the non-polar tail, the applied range of the unsaturated betaine is broader than corresponding saturated betaine for low Krafft point. The CMC and ΓCMC of the four betaines increase, but the pC20 decreases, with increasing pH. As a whole, the impact of pH on the performance of the four betaines is not very obvious.

Tertiary amine sulfonic acid type surfactant, and preparation method and application thereof

The invention belongs to the technical field of fine chemical engineering, and relates to a tertiary amine sulfonic acid type surfactant and a preparation method thereof. The molecular structure general formula of the tertiary amine sulfonic acid type surfactant is shown in the specification, and n in the formula is 12, 14, 16 and 18. The tertiary amine sulfonic acid type surfactant is prepared from fatty amine, an alcohol solvent, 2-acrylamide-2-methylpropanesulfonic acid and acrylic acid according to a molar ratio 1: (7.00-13.00): (1.00-1.05): (1.00-1.10). The alcohol solvent is ethanol or isopropanol. The tertiary amine sulfonic acid type surfactant has the advantages of easily available synthetic raw materials, low production cost and simple production process, and the foam inhibition performance and the emulsifying performance of the tertiary amine sulfonic acid type surfactant are superior to those of a surfactant OP-10.

Ammonium sulfonate zwitterionic silane coupling agent, siloxane ring body and preparation method of ammonium sulfonate zwitterionic silane coupling agent and siloxane ring body

The invention discloses an ammonium sulfonate zwitterionic silane coupling agent and a preparation method thereof, and a siloxane ring body and a preparation method thereof, wherein the structure formulas of the ammonium sulfonate zwitterionic silane coupling agent and a first intermediate and a second intermediate for preparing the ammonium sulfonate zwitterionic silane coupling agent are respectively represented by a formula (1), a formula (2) and a formula (3), R is C1-C3 alkyl, a is 0, 1 or 2, and R and R are methyl or ethyl. According to the invention, the ammonium sulfonate zwitterionic silane coupling agent and the siloxane ring body meet the application requirements of chemical modification and graft modification on the surface of materials, and can be commercialized. Theinvention further provides a method capable of efficiently synthesizing the zwitterionic ammonium sulfonate type ionic silane coupling agent and the siloxane ring body.

Quaternary ammonium salt type hydroxypropyl phosphate sodium quick-cracking type asphalt emulsifier and preparation method thereof

The invention discloses a quaternary ammonium hydroxypropyl sodium phosphate quick breaking asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials according to molar ratio: octadeyl dimethyl tertiary amine, an alcohol solvent, epoxy chloropropane and sodium dihydrogen phosphate with the molar ratio of 1mol to (4.00-9.00)mol to (1.00-1.15)mol to (1.50-1.73)mol, or octadeyl dimethyl tertiary amine, an alcohol solvent, epoxy chloropropane, rtiary sodium phosphate and hydrochloric acid with the molar ratio of 1mol to 4.00-9.00)mol to (1.00-1.15)mol to (1.30-1.50)mol to (1.40-1.61)mol. The alcohol solvent adopts ethanol, methanol or isopropanol. The asphalt emulsifier has the advantages that the raw materials are available, the production cost is low, the technology is simple, and high-temperature reaction is not required, various different models of asphalt can be emulsified, formed emulsified asphalt is fine and uniform, the storage stability is good, and cationic emulsified asphalt can be prepared.

Amide quaternary ammonium salt sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof

The invention discloses an amide quaternary ammonium salt sodium hydroxypropyl sulfonate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from coconut oil acyl propyl dimethyl tertiary amine, alcohol solvent, acrylic acid, epoxy chloropropane and sodium hydrogen sulfite according to a molar ratio of 1mol:(4.00-9.00)mol):(1.00-1.10)mol:(1.0-1.15)mol:(1.05-1.25)mol, wherein the alcohol solvent is alcohol, methanol or isopropanol. The asphalt emulsifier is easy-to-obtain in synthesis raw materials, low in production cost, simple in process and needless of high-temperature reaction and can emulsify asphalt different in type, emulsified asphalt prepared by using the asphalt emulsifier is exquisite, uniform and high in storage stability, and cationic emulsified asphalt can be prepared.

Secondary amide quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier and preparation method thereof

The invention discloses a secondary amide quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier and a preparation method thereof, wherein the secondary amide quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier is prepared from the following raw materials octadecylamine, an alcohol solvent, N-hydroxymethyl acrylamide, epichlorohydrin and sodium bisulfite according to a molar ratio of 1:(4.00-9.00):(2.00-2.10):(1.00-1.15):(1.05-1.25), and the alcohol solvent is ethanol, methanol or isopropanol. According to the present invention, the preparation method has advantages of easily available raw material, low production cost, simple process and no requirement of high temperature reaction; and the obtained secondary amide quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier can emulsify a variety of different types of asphalts, and can be used for preparing cationic emulsified asphalts, and the emulsified asphalt prepared from the secondary amide quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier has advantages of fine and uniform property and good storage stability.

Preparation method of sodium 3-chloro-2-hydroxy propanesulfonate

A preparation method of sodium 3-chloro-2-hydroxy propanesulfonate is characterized in that distilled water, TBAB (tetra-n-butylammonium bromide) and sodium bisulfite are mixed and heated to a certain temperature, then ECH (epichlorohydrin) is added dropwise, after dropwise adding of ECH is finished, heat is preserved for a period of time at the temperature, a product is cooled in an ice-water bath to the temperature lower than 10 DEG C after reaction, crystallized and subjected to vacuum pumping filtration, solid substances are separated out, and a solvent is recovered. The solid substances are washed twice with ethyl alcohol and dried, and white powdery solids (crude products) are obtained; the crude products are recrystallized with distilled water, white crystals are obtained, and reaction mother liquor or recrystallization mother liquor is recovered, wherein the mass of TBAB is 3%-8% of the mass of ECH, the mole ratio of sodium bisulfite to ECH is 1.05-1.30, the mole ratio of the distilled water to sodium bisulfite is 9-11, the dropwise adding time is 0.75-2.5 h, the reaction time is 0.75-2.5 h, and the reaction temperature is 80-90 DEG C.

Preparation method of novel sulfobetaine-type gemini surfactant

The invention relates to a preparation method of a novel sulfobetaine-type gemini surfactant, and relates to the field of surfactants. Existing gemini surfactants have poor temperature and salt resistances, and surfactant solution interfacial surface tension and critical micelle concentration are high. Aiming at the above defects, the invention provides the preparation method of the novel sulfobetaine-type gemini surfactant. According to the method, methyl conjugated bisnonylphenol is synthesized with nonylphenol paraformaldehyde as a raw material; methyl conjugated bisnonylphenol is subjected to an amination reaction with dimethylamine, such that methyl conjugated bisnonylphenol tertiary amine is produced; and a quaternization reaction is carried out, such that the novel sulfobetaine-type gemini surfactant with a clear structure, good performance and higher purity is synthesized. With the method, the prepared novel sulfobetaine-type gemini surfactant has good temperature resistance and salt resistance. The solution interfacial surface tension and critical micelle concentration of the surfactant are lower by 10-100 times than common surfactants. The interfacial surface tension of the gemini surfactant can reach 10-10mN/m.