| abstract |
Per 100 moles of iron and cobaltn n n 5 to 20 moles of cobalt,n n n 1 to 5 moles of aluminum,n n n 3 to 10 moles of silicone,n n n 0.7 mol to 3.5 mol of phosphorus,n n n And oxygenn n n A needle-like ferromagnetic iron- and cobalt-containing pigment containing N, wherein the total weight of iron, cobalt, aluminum, silicon, phosphorus and oxygen elements is 95 to 100% by weight based on the total weight of the pigment. |