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The Ultimate Chemistry of Color
 
  Solvent Dyes  
 
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SOLVENT YELLOW 18
 
NAME OF THE PRODUCT OIL YELLOW DX
C.I.HUE NAME SOLVENT YELLOW 18
C.I.NUMBER 12740
CHEMICAL CLASS MONOAZO
HUE BRIGHT REDDISH YELLOW
PHYSICAL APPEREANCE YELOW POWDER
PH  7 TO 8
MOLECULAR WEIGHT  308
SOLUBILITY INSOLUBLE IN BENZENE - LESS THAN 2% , SOLUBLE OILS, FATS, BENZENE, TOLUENE ETC.
LOVIBOND TINTOMETER 
READING 0.002% 
COLOUR IN BENZENE IN 
1/4 INCH CELL
YELLOW 6.0 + 0.2 
RED 0.2 + 0.2
LEAD CONTENTS  LESS THAN 20 PPM
ARSENIC CONTENTS LESS THAN 2 PPM
HEAVY METAL CONTENTS LESS THAN 100 PPM
FREE AMINE CONTENTS LESS THAN 200 PPM
FASTNESS  
LIGHT GOOD (MINERAL OIL)
HEAT : MELTING POINT 
           : STABLE TO 
166oC +
90oC + 2
WATER INSOLUBLE
EFFECT OF 5% NA2CO3 UNAFFECTED
EFFECT OF 5% HCL UNAFFECTED
MATERIAL SUPPLIED AS HEAVY PAPER BAGS/ M.S. DRUMS/HDPE CARBOYS INSIDE DOUBLE POLYTHELENE BAGS
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