Abstract: An aqueous solution containing an alkali metal bis(fluorosulfonyl)imide, in which a total content of the alkali metal bis(fluorosulfonyl)imide and water is 98 mass % or more with respect to a total amount of the aqueous solution, and a pH is ?3 to 10.

Abstract: In the present invention, a bis (fluorosulfonyl) imide metal salt is an alkali metal salt of bis (fluorosulfonyl) imide or an alkaline earth metal salt of bis (fluorosulfonyl) imide. The bis (fluorosulfonyl) imide metal salt has an average particle diameter of not less than 0.1 mm, or has an average moisture absorption rate of not more than 2.5 mass ppm/cm2·min when sealed in a PE bag having a thickness of 80 ?m and left for 30 minutes at 23° C. and 65% humidity.

Abstract: Provided is a method the enables easy production of bis(fluorosulfonyl)imide suitable for a non-aqueous electrolytic solution for a lithium ion secondary battery, etc. The method for producing a bis(fluorosulfonyl)imide alkali metal salt according to the present invention comprises reacting bis(fluorosulfonyl)imide with an alkali metal compound in a reaction solution containing an organic solvent, wherein the organic solvent includes at least one organic solvent (A) selected from the group consisting of carbonate solvents, cyclic ether solvents, linear ether solvents having two or more oxygen atoms in the molecule, cyclic ester solvents, sulfolane solvents, N,N-dimethyl formamide, dimethyl sulfoxide, and N-methyl oxazolidinone.

Abstract: Provided is a method the enables easy production of bis(fluorosulfonyl)imide suitable for a non-aqueous electrolytic solution for a lithium ion secondary battery, etc. The method for producing a bis(fluorosulfonyl)imide alkali metal salt according to the present invention comprises reacting bis(fluorosulfonyl)imide with an alkali metal compound in a reaction solution containing an organic solvent, wherein the organic solvent includes at least one organic solvent (A) selected from the group consisting of carbonate solvents, cyclic ether solvents, linear ether solvents having two or more oxygen atoms in the molecule, cyclic ester solvents, sulfolane solvents, N,N-dimethyl formamide, dimethyl sulfoxide, and N-methyl oxazolidinone.

Abstract: Provided is a method with which it is possible to conveniently produce bis(fluorosulfonyl)imide suitable as a nonaqueous electrolyte of a lithium ion secondary cell. The method for producing a bis(fluorosulfonyl)imide alkali metal salt of the invention is a production method for producing a bis(fluorosulfonyl)imide alkali metal salt by reacting bis(fluorosulfonyl)imide and an alkali metal halide in a reaction solution including an organic solvent, the method including a purification step for filtering out the bis(fluorosulfonyl)imide alkali metal from the solution after the reaction.

Abstract: To provide a composition in which when the composition is formed into a solution, the clogging of a filter is less likely to be caused, and the solution can be filtered in a short time. A composition comprising: lithium bis(fluorosulfonyl)imide; and an impurity, wherein when the composition is dissolved in a mixed solvent obtained by mixing ethylene carbonate and ethyl methyl carbonate at a volume ratio of 3:7, to prepare a solution having a concentration of the lithium bis(fluorosulfonyl)imide of 1 M, and 50 mL of the solution is pressure-filtered at a pressure of 0.1 MPa using a membrane filter having a pore diameter of 0.2 ?m and a filtration area of 47 mm?, insoluble particles having an average particle diameter of 5 to 150 ?m remain on the membrane filter.

Abstract: A compound represented by the following formula (1): wherein R1, R2 and R3 each independently represent fluorine, an alkyl group having 1 to 6 carbon atoms or a fluoroalkyl group having 1 to 6 carbon atoms; and M+ represents an alkali metal ion.

Abstract: The present invention provides a method for producing a bis (fluorosulfonyl) imide alkali metal salt by a reaction of a mixture containing bis (fluorosulfonyl) imide and an alkali metal compound is provided. According to this method for producing a bis (fluorosulfonyl) imide alkali metal salt, a total of weight ratios of the bis (fluorosulfonyl) imide, the alkali metal compound and the bis (fluorosulfonyl) imide alkali metal salt to an entire reacted mixture is not less than 0.8, after the reaction.

Abstract: In the present invention, a bis (fluorosulfonyl) imide metal salt is an alkali metal salt of bis (fluorosulfonyl) imide or an alkaline earth metal salt of bis (fluorosulfonyl) imide. The bis (fluorosulfonyl) imide metal salt has an average particle diameter of not less than 0.1 mm, or has an average moisture absorption rate of not more than 2.5 mass ppm/cm2·min when sealed in a PE bag having a thickness of 80 ?m and left for 30 minutes at 23° C. and 65% humidity.

Abstract: The present invention provides an ionic compound containing a cyanoborate; a process for production thereof; and an electrolytic solution and a device. The electrolytic solution comprises an ionic compound represented by general formula (1) and a solvent, Mn+([B(CN)4-mYm]?)n??(1) wherein Mn+ represents an organic or inorganic cation having a valency of 1 to 3; Y represents a halogen, a hydrocarbon group which has a main chain having 1 to 10 carbon atoms and which may optionally contain a halogen, —C(O)R14, —S(O)lR14, —Z(R14)2, or —XR14; R14 represents H, a halogen, or an organic substituent group which has a main chain having 1 to 10 atoms; Z represents N or P; X represents O or S; R13 represents H, or an hydrocarbon group which has a main chain having 1 to 10 atoms; l represents an integer of 1 to 2; m and n represent an integer of 1 to 3 respectively.

Abstract: The present invention provides a stable electrolyte material that provides high safety, exhibits favorable ionic conductivity not only at room temperature but also in the low temperature range at or below room temperature, has excellent reduction resistance, and can be suitably used as a material of a lithium ion cell. The electrolyte material includes, as essential components, a specific polymer having an ether bond in a side chain thereof, and a specific electrolyte salt.

Abstract: The present invention has an object to provide a polymer-containing composition for dispersants for cement which exhibits higher cement dispersibility even when used in a small amount, and can provide high flowability to a cement composition such as mortar and concrete and stably maintain this high flowability for a certain period, and to provide a production method thereof. The polymer-containing composition for dispersants for cement includes a polymer including a repeating unit derived from an unsaturated polyalkylene glycol ether monomer (I) having a specific structure and a repeating unit derived from an unsaturated carboxylic acid monomer (II) having a specific structure, and is prepared by polymerizing an unsaturated polyalkylene glycol ether monomer (I)-containing composition that includes specific amounts of specific components.

Abstract: To provide a production method of a (poly)alkylene glycol chain-containing polymer which can be preferably used in various applications such as an admixture for cement and which can exhibit extremely high dispersibility to a cement composition. The unsaturated (poly)alkylene glycol ether monomer of the present invention is an unsaturated (poly)alkylene glycol ether monomer production method for producing an unsaturated (poly)alkylene glycol ether monomer by addition reaction of an alkylene oxide on an unsaturated alcohol, wherein the production method includes a step of carrying out addition reaction under condition of existence of 0.01 to 25 parts by mass of an unsaturated (poly)alkylene glycol diether monomer to 100 parts by mass of the unsaturated alcohol, and a (poly)alkylene glycol chain-containing polymer production method, wherein a monomer component including an unsaturated (poly)alkylene glycol ether monomer produced by the production method.

Abstract: The present invention provides an ionic compound containing a cyanoborate; a process for production thereof; and an electrolytic solution and a device, each utilizing the ionic compound. The electrolytic solution of the present invention comprises an ionic compound represented by general formula (1) and a solvent. Further, a production process of the present invention comprises reacting a compound represented by general formula (8) with a substitution reaction reagent to obtain a compound represented by general formula (1).

Abstract: The present invention provides a stable electrolyte material that provides high safety, exhibits favorable ionic conductivity not only at room temperature but also in the low temperature range at or below room temperature, has excellent reduction resistance, and can be suitably used as a material of a lithium ion cell. The electrolyte material includes, as essential components, a specific polymer having an ether bond in a side chain thereof, and a specific electrolyte salt.

Abstract: The present invention has an object to provide a polymer-containing composition for dispersants for cement which exhibits higher cement dispersibility even when used in a small amount, and can provide high flowability to a cement composition such as mortar and concrete and stably maintain this high flowability for a certain period, and to provide a production method thereof. The polymer-containing composition for dispersants for cement includes a polymer including a repeating unit derived from an unsaturated polyalkylene glycol ether monomer (I) having a specific structure and a repeating unit derived from an unsaturated carboxylic acid monomer (II) having a specific structure, and is prepared by polymerizing an unsaturated polyalkylene glycol ether monomer (I)-containing composition that includes specific amounts of specific components.

Abstract: To provide a production method of a (poly)alkylene glycol chain-containing polymer which can be preferably used in various applications such as an admixture for cement and which can exhibit extremely high dispersibility to a cement composition. The unsaturated (poly)alkylene glycol ether monomer of the present invention is an unsaturated (poly)alkylene glycol ether monomer production method for producing an unsaturated (poly)alkylene glycol ether monomer by addition reaction of an alkylene oxide on an unsaturated alcohol, wherein the production method includes a step of carrying out addition reaction under condition of existence of 0.01 to 25 parts by mass of an unsaturated (poly)alkylene glycol diether monomer to 100 parts by mass of the unsaturated alcohol, and a (poly)alkylene glycol chain-containing polymer production method, wherein a monomer component including an unsaturated (poly)alkylene glycol ether monomer produced by the production method.

Abstract: The present invention provides polyalkylene glycols hardly containing impurities and a production method thereof. Specifically, the present invention provides: polyalkylene glycols hardly containing diols such as polyethylene glycol, diesters, halogens, metals, water, coloring-causing substances; and a production method thereof. A polymerizable polyalkylene glycol satisfying the characteristics (1) and/or (2): (1) a polymerizable dimer content is 0.001 to 10% by weight and (2): a metal content is 50 ppm or less. It is more preferable that the polymerizable dimer content is 0.001 to 3.5% by weight, and it is still more preferable that the above-mentioned characteristics (1) and (2) are satisfied.