Carboxymethyl starch sodium, preparation method thereof and absorbable styptic powder

The invention relates to carboxymethyl starch sodium, the water absorption rate of the carboxymethyl starch sodium is more than 70 times, and the viscosity of the carboxymethyl starch sodium in water is more than 4200.8 mPa.s. The invention also relates to a preparation method of the carboxymethyl starch sodium. The invention also relates to absorbable styptic powder containing the carboxymethyl starch sodium or the carboxymethyl starch sodium obtained by the preparation method. The absorbable styptic powder disclosed by the invention has high safety, high fluid absorption capacity and high adhesive force. 本发明涉及一种羧甲淀粉钠，该羧甲淀粉钠的吸水倍率为70倍以上，所述羧甲淀粉钠在水中的粘度为4200.8mPa.s以上。本发明还涉及一种羧甲淀粉钠的制备方法。本发明还涉及一种包括上述羧甲淀粉钠或由上述制备方法获得的羧甲淀粉钠的可吸收止血粉。本发明的可吸收止血粉，具备高安全性、高吸液力以及高黏附力。