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 Click to enlarge image
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Magnetite for video tape
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EP-288MK |
EP-288MK is able to keep excellent picture
quality despite thin film coating due to high % of Fe2+ from magnetite particles
covered with cobalt and great remained magnetization. |
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Items
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Unit
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Data
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Hc (Coercivity)
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Oe
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60
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σr (Remained Magnetization)
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emu/g
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85
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TD (Tap Density)
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g/ml
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5.0
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AD (Apparent Density)
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g/ml
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0.75
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SA (Solvent Absorption)
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ml/g
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2.72
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pH
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-
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6.0
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BET (Specific Surface)
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m2/g
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8.5
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EP-350MS
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EP-350MS improved recording density of video
tape through granulating particles. Also, its high % of Fe2+ allowed high
generating power. |
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Items
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Unit
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Data
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Hc (Coercivity)
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Oe
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655
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σr (Remained Magnetization)
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emu/g
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84
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TD (Tap Density)
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g/ml
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0.85
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AD (Apparent Density)
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g/ml
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0.53
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SA (Solvent Absorption)
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ml/g
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0.78
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pH
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-
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8.6
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BET (Specific Surface)
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m2/g
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30
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