Patent Blue V Specifications

Product Name Patent Blue V
Colour Shade
Synonyms Food Blue 5, Sulphan Blue
Chemical Name Bis[hydrogen [4-[4-(diethylamino)-5'-hydroxy-2',4'-disulphonatobenzhydrylidene] cyclohexa- 2,5-dien-1-ylidene]diethyl ammonium
C.I. No 42051
C.I. Name Acid Blue 3
FDA Status ---
CAS No. 3536-49-0
EINECS No. 222-573-8
Test EEC (Limit)
Total colouring matters calculated as the sodium salt percent by mass Min. 85
Water insoluble matter, percent by mass Max. 0.20
Combined ether extract, percent by mass Max. 0.20
Unsulfonated Primary Aromatic amines. percent by mass Max. 0.01
Subsidiary dyes, percent by mass Max. 2
Total organic compound other than colouring matters, percent by mass
(a) 3 Hydroxy benzaldyhyde
(b) 3 Hydroxy benzoic acid
(c) 3 Hydroxy 4 sulfonic acid,N,N-diethyle amino benzene sulfonic acid
Max. 0.50
Leuco base, percent by mass Max. 4
Heavy metals as pb(mg/kg.) Max. 40
Arsenic, (mg/kg.) Max. 3
Lead (mg/kg.) Max. 10
Mercury (mg/kg.) Max. 1
Cadmium (mg/kg.) Max. 1

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