Laundry bluing

Laudanum Laumontite Laundering fastness Launder-ometer test Laundries Laundry bleaches Laundry bluing Laundry cleaners Laundry products Laundry sour Laur amide... 

Ultramarine pigments ate used in printing inks, textiles, mbber, artists colors, cosmetics, and laundry bluing. Because of their thermal stabiHty they are also used to color roofing granules. 

Products and Uses A laundry bluing used to offset yellow tones. Also added in soaps and cosmetics (eye shadows and mascaras). Used as a coloring agent. It occurs naturally as the blue pigmentation in the mineral lapis lazuli. 

An interesting set of reactions involves the complex ions [Fe(CN)6] and [Fe(CN)6] . These ions are commonly called ferrocyanide and ferricyanide, respectively. Fe (aq) yields a dark blue precipitate called Prussian blue when treated with potassium ferrocyanide, K4[Fe(CN)6](aq), whereas Fe (aq) yields a similar blue precipitate, called Turnbull s blue, when treated with potassium ferricyanide, K3[Fe(CN)6](aq). Together, these two and similar related precipitates are known commercially as iron blue. Iron blue is used as a pigment for paints, printing inks, laundry bluing, art colors, cosmetics (eye shadow), and blueprinting. An additional sensitive test for Fe " (aq) is the formation of a blood-red complex ion with thiocyanate ion, SCN (aq). 

Wasch-blau, n. bluing, laundry blue, -bottich, m. washing vat (tub, etc.), -biirste, /. washing brush, cleaning brush. -butte,/, washing tank, purifleation tub. 

USE As a pigment in calico printing, wall paper, mottled soap bluing in laundry use for coloring tiles, cements, rub -ber, bnt is now largely replaced by coat tar dyes as a color in food. 

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