scholarly journals Synthesis of Novel Dark Red Phosphate Pigments in Imitation of Natural Ore

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hiroaki Onoda ◽  
Syohei Fujikado
Keyword(s):  
Phosphate Pigments

Corrosion inhibition at galvanized steel cut edges by phosphate pigments

2009 ◽  
Vol 54 (15) ◽  
pp. 3857-3865 ◽  
Author(s):  
A.M. Simões ◽  
J. Torres ◽  
R. Picciochi ◽  
J.C.S. Fernandes
Keyword(s):  
Corrosion Inhibition ◽  
Galvanized Steel ◽  
Phosphate Pigments

Anticorrosive properties enhancement by means of phosphate pigments in an epoxy 2k coating. Assessment by NSS and ACET

2014 ◽  
Vol 77 (12) ◽  
pp. 2024-2030 ◽  
Author(s):  
M.J. Gimeno ◽  
S. Chamorro ◽  
R. March ◽  
E. Oró ◽  
P. Pérez ◽  
...  
Keyword(s):  
Phosphate Pigments

scholarly journals Synthesis of novel red phosphate pigments from manganese carbonate to imitate natrophilite

Cerâmica ◽  
2018 ◽  
Vol 64 (372) ◽  
pp. 623-626
Author(s):  
H. Onoda ◽  
S. Fujikado
Keyword(s):  
Color Space ◽  
Xrd Analysis ◽  
Manganese Carbonate ◽  
X Ray Diffraction ◽  
Manganese Phosphate ◽  
A Value ◽  
Higher Temperature ◽  
Phosphate Pigments ◽  
Xrd Patterns ◽  
Visible Reflectance

Abstract A novel red pigment, sodium manganese phosphate (NaMnPO4), imitating natrophilite, was synthesized from manganese carbonate by heating under various conditions. The powders obtained were investigated by X-ray diffraction (XRD) analysis, infrared spectroscopy, ultraviolet-visible reflectance spectroscopy, and L*a*b* color space. Samples synthesized at 500-800 °C presented XRD patterns associated with NaMnPO4. By heating at a higher temperature, the samples exhibited lighter color. The sample synthesized at 700 °C indicated the highest a* value. Furthermore, the effects of varying relative amounts of constituents were also studied. The temperature and period of heating, volume of water, and phosphate content affected the color phase of the pigments.

Synthesis of novel phosphate pigments in imitation of Turquoise

2018 ◽  
Vol 23 (5) ◽  
pp. 266-269
Author(s):  
Hiroaki Onoda ◽  
Ryota Sasaki
Keyword(s):  
Phosphate Pigments

The influence of the solubility of zinc phosphate pigments on their anticorrosive behaviour

2000 ◽  
Vol 29 (2) ◽  
pp. 100-107 ◽  
Author(s):  
G. Blustein ◽  
B. del Amo ◽  
R. Romagnoli
Keyword(s):  
Zinc Phosphate ◽  
Phosphate Pigments
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