... HNO3 at room temperature.b. The content of N, H, O, C will increase in the air.c. Can ... TitaniumHDH powder>99.5-60—200 mesh0<0.25,H<0.03,N<0.03,Fe<0.05>99 ... 0.0599.4—99.240—200 mesh0<0.3, H<0.04,N<0.04,Fe<0.0699.4 ... Fe<0.0699—99.2-200 mesh0<0.6, H<0.05,N<0.05,Fe<0.06Pure titanium ... scrap powder95—99-40—150 mesh0<0.8, H<0.1, Fe<0.995—99-150 mesh0<0 ... .03,N<0.02>88 -40—325 meshH<0.01,0<0.15, Fe<0.3,AL>5.6 ...