1.07297
Phthalein purple
metal indicator Reag. Ph Eur
Synonym(s):
Phthalein purple, Xylenolphthalein-bis(iminodiacetic acid), Metal phthaleine, Cresol phthalexone
About This Item
Recommended Products
agency
reag. Ph. Eur.
Quality Level
form
solid
impurities
≤10% Water (Karl Fischer)
mp
186 °C
bulk density
50 kg/m3
λmax
577-580 nm in 0.1 M NaOH
storage temp.
2-30°C
InChI
1S/C32H32N2O12.4Na/c1-17-7-21(9-19(29(17)43)11-33(13-25(35)36)14-26(37)38)32(24-6-4-3-5-23(24)31(45)46-32)22-8-18(2)30(44)20(10-22)12-34(15-27(39)40)16-28(41)42;;;;/h3-10,43-44H,11-16H2,1-2H3,(H,35,36)(H,37,38)(H,39,40)(H,41,42);;;;/q;4*+1/p-4
InChI key
KSMPPVYJZJBIES-UHFFFAOYSA-J
Related Categories
Analysis Note
Absorption maximum λmax.(Sodium hydroxide solution 0.1 mol/l): 577 - 580 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l;sodium hydroxide solution 0.1 mol/l;calc. on anhydrous substance): ≥ 750
Water (according to Karl Fischer): ≤ 10 %
Suitability as indicator (for metal titration): passes test
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service