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| Name︰ | Iron oxide red/yellow/green/brown |
| Country of Origin︰ | China |
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Red Iron Oxide 130
Iron content[indicated by Fe2Ο3[at 105℃]backing 95.8
Volatile matter at 105℃ 0.66
Matter soluble in water 0.13
Sieve Residue on 63μm mesh 0.05
PH Value of water suspension 6.01
Oil absorption 20.46
Color comparison[contrast with standard specification] nil
Comparison of relative tinting strength [contrast with standard specimen] 101
Yellow Iron Oxide 313
Iron content[indicated by Fe2Ο3[at 105℃]backing 86.3
Volatile matter at 105℃ 0.6
Matter soluble in water 0.12
Sieve Residue on 45μm mesh 0.07
PH Value of water
suspension 4.72
Oil absorption 28.6
Color comparison[contrast with standard specification] nil
Comparison of relative tinting strength [contrast with standard specimen] 101
GatheringliquidPH,ML 18
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