| abstract |
Provided is a water-absorbing agent having excellent water absorption retention ability and excellent liquid suction. The water-absorbing agent has a polyacrylic acid (salt) water-absorbing resin as a main component and satisfies all of the following physical properties (a) to (e). (A) The weight average particle size (D50) is 300 μm or more and less than 400 μm, (b) the proportion of particles having a particle size of 600 μm or more and less than 850 μm is less than 10% by weight, and (c) the average gap radius is 100 μm or more and 180 μm. (D) CRC is 28 g / g or more and less than 34 g / g, (e) AAP is 24 g / g or more. |