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Saturday, February 2, 2019
Friday, February 1, 2019
Thursday, January 31, 2019
Wednesday, January 30, 2019
Azo Dye Preparation/ Grinding Method
1-napthol, sulfanilic acid and sodium nitrite ground in an ice-water bath for five minutes.
Resultant red dye taken up in water and clear acrylic binder and kaolin clay added to prepare paint.
Adjusting PH can vary the color by ionizing the phenol.
Resultant red dye taken up in water and clear acrylic binder and kaolin clay added to prepare paint.
Adjusting PH can vary the color by ionizing the phenol.
Tuesday, January 29, 2019
Monday, January 28, 2019
Sunday, January 27, 2019
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