Detail of "12656-85-8"

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CAS Number:
12656-85-8
Name:
Pigment Red 104
Formula:
PbCrO₄, PbMoO₄, PbSO₄
Deleted CAS:
12213-61-5|64523-06-4|8005-36-5
Synonyms:
C.I. 77605;Chrome Vermilion;Horna Molybdate Orange MLH 84SQ;Krolor Orange KO 906D;Krolor Orange RKO 786D;Lead chromate molybdate sulfate red;Mineral Fire Red5DDS;Mineral Fire Red 5GGS;Mineral Fire Red 5GS;MolybdateOrange Y 786D;Molybdate Orange YE 421D;Molybdate Orange YE 698D;MolybdateRed;Molybdate Red AA 3;Molybden Red;Molybdenum Red;Molybdenum orange;Renol Molybdate Red RGS;Vynamon Scarlet BY;Vynamon Scarlet Y;Molybdate orange;
EINECS:
235-759-9
Hazard Symbols:
T,N
Risk Codes:
61-33-40-50/53-62
Safety:
53-45-60-61 Details

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Molybdenum red pigment: Molybdenum red pigment. Orban, Nicolae; Schon, Andrei; Nabosnyi, Ludovic; Bordas, Agneta (Intreprinderea Chimica "Sinteza", Rom.). Rom. RO 77759 B 30 Nov 1981, 3 pp. (Romanian). (Romania). CODEN: RUXXA3. CLASS: IC: C09C001-00. APPLICATION: RO 79-97825 13 Jun 1979. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 37, 49 The stability and dispersibility of molybdenum red [12656-85-8] pigment for paints and plastics, prepd. from Pb(NO3)2, Na2Cr2O7, Na molybdate, and Na2SO4, are improved by pptg. the pigment at pH 2.5-2.8 and 20-25°, washing the ppt. at pH 4-4.5, adding simultaneously and sep. a Na silicate soln. (4-5% SiO2 based on pigment) and an SbCl3 soln. (1.5-2% Sb2O3 based on pigment) at 75-90° and pH 8-9, and treating the ppt. with a soln. of a quaternary ammonium salt (1-3% based on pigment). An acrylic coating contg. the pigment on sheet metal exhibited no change in color after 500 h in the Xenotest app. or after 5 min in a H2S-satd. soln., and plastics contg. the pigment exhibited a high color d. after extrusion at 200°.

2,9-Dichloroquinacridone pigment compositions: 2,9-Dichloroquinacridone pigment compositions. Jaffe, Edward Ephraim (du Pont de Nemours, E. I., and Co., USA). U.S. US 4015998 5 Apr 1977, 5 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C09B048-00. NCL: 106288000Q. APPLICATION: US 75-616378 24 Sep 1975. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) The heat stable, highly dispersible magenta colorant 2,9-dichloroquinacridone (I) [3089-17-6] was combined with C.I. Pigment Red 104 (II) [12656-85-8] to give a true red pigment of superior intensity, lightfastness and heat stability suitable for use in plastics. The I was prepd. by ball milling a conventional I in crude .gamma. or a mixt. of .beta. and .gamma. 9003-53-6 and 3089-17-6 are also in the experiment. forms in the presence of Al2(SO4)3.15-18 H2O and tetrachloroethylene, followed by extn. in dil. H2SO4. Thus, a blend of polystyrene (III) [9003-53-6] and I and an blend of III and silica-encapsulated II were incorporated and blended with ABS resin [9003-56-9] at 200.degree. in a ratio of I and II to give a product with a very intense red color which could be injection molded at .ltoreq.290.degree.. .