| 摘要 |
<p>A magnetic recording medium having a support and provided thereon, a magnetic layer containing a ferromagnetic metal powder and a binder is disclosed. The ferromagnetic powder comprises an adsorbed moisture of not less than 1.0 weight % and not more than 2.5 weight % of said ferromagnetic metal powder, a pH value of not less than 9.0 and not morer than 11.5, and a specific surface area of not less than 45 m<2>/g measured by a BET method; and the binder comprises at least one polar group selected from the group consisting of: <CHEM> wherein M represents an atom selected from the group consisting of hydrogen, lithium, sodium, and potassium; and M<1> and M<2> represent atoms of hydrogen, lithium, sodium and potassium, and an alkyl group, provided that M<1> and M<2> may be same with or different from each other.</p> |
