Answers

2015-04-02T17:15:23+05:30
Chromatography is the process . there are various types of chromatography as well
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isn't chromatography used to separate different color of black
maybe u r right i though pigments so chromatography
i am thinking this because i blue is primary color
oh alright ! no prob there :)
2015-04-02T17:56:55+05:30
Crystallization would the process to blue ink pigments 
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Crystallization is absolutely wronv