Ponceau 4R

Specification
PRODUCTS NAME PONCEAU 4R
Color SHADE
 
SYNONYMS Food Red-7
CHEMICAL NAME Trisodium 2-hydroxy-1-(4- sulfonato-1-naphtylazo)-naphtalene-6,8-disulfonate
Color INDEX NO. 16255
C.I. NAME Acid Red 18
FDA STATUS --
CAS NO. 2611-82-7
EINECS NO. 220-036-2
EEC NO. E-124
HUE NAME (FOOD) Red - 7
INDIAN STANDARD No. 2258
CLASS Monoazo
TOTAL DYE CONTENT % MIN. 82
LOSS ON DRYING AT 135 C & SODIUM
CHLORIDES & SULPHATES % MAX
18
WATER INSOLUBLE MATTER % MAX.
0.2
ETHER EXTRACTS % MAX.. 0.2
SUBSIDIARY DYE % MAX. 1.0
DYES INTERMEDIATES % MAX. 0.50
UNSULFONATED PRIMARY AROMATIC AMINES % MAX. 0.01
LEAD (AS "Pb") PPM (MAX.) 10.00
ARSENIC (AS "As" PPM (MAX.) 1.00
MERCURY (AS "Hg") PPM (MAX) 1.0
CHROMIUM (AS "Cr") PPM (MAX) 5.0
HEAVY METALS PPM (MAX) 40.00
Total organic compound other than Coloring matters, percent by mass.
4-aminonaphthalene-1-sulfonic acid
7-hydroxynaphthalene-1,3-disulfonic acid
3-hydroxynaphthalene-2,7-disulfonic acid
6-hydroxynaphthalene-2-sulfonic acid
7-hydroxynaphthalene-1,3-6- trisulfonic acid
Max 00.50
WATER (gms/ltr.) 140.0
GLYCERINE (gms/ltr.) 10.00
PROPYLENE GLYCON (gms/ltr.) 50.00
ETHANOL (95%) (gms/ltr.) Trace