Indicators

Eosin Y alcohol soluble 25g Eosin yellowish, C.I. Acid Red 87 C20H6Br4Na2O5 M.W: 691.9 g/mol CAS Number 17372-87-1 https://pubchem.ncbi.nlm.nih.gov/compound/11048

Eriochrome Black T (25gr) Sodium 1-[1-Hydroxynaphthylazo]-6-nitro-2-naphthol-4-sulfonate, Sodium 4-[2-(1-hydroxynaphthalen-2-yl)hydrazin-1-ylidene]-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate, Sodium 4-[2-(1-hydroxynaphthalen-2-yl)hydrazin-1-ylidene]-7-nitro-3-oxonaphthalene-1-sulfonate; Solochrome Black T; ET-00; Erio T C₂₀H₁₂N₃O₇SNa 461.381 g/mol Cas Number: 1787-61-7 https://en.wikipedia.org/wiki/Eriochrome_Black_T

Indigo Carmine 25gC₁₆H₈N₂Na₂O₈S₂M.W. : 466.346CAS Number : 860 - 22 - 0https://en.wikipedia.org/wiki/Indigo_carminehttps://pubchem.ncbi.nlm.nih.gov/compound/Indigo_carmine

[:en] Litmus Solution (100ml) [:]

m-Cresol Purple (5gr)

Bromophenol blue 25g 3,3-Bis(3,5-dibromo-4-hydroxyphenyl)-2,1λ⁶-benzoxathiole-1,1(3H)-dione C₁₉H₁₀Br₄O₅S M.W: 669.96 g·mol⁻¹ Cas Number: 115-39-9 https://pubchem.ncbi.nlm.nih.gov/compound/8272

Bromophenol blue 5g 3,3-Bis(3,5-dibromo-4-hydroxyphenyl)-2,1λ⁶-benzoxathiole-1,1(3H)-dione C₁₉H₁₀Br₄O₅S M.W: 669.96 g·mol⁻¹ Cas Number: 115-39-9 https://pubchem.ncbi.nlm.nih.gov/compound/8272

Thymol Blue (5g)3,3-Bis[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl]-2,1λ⁶-benzoxathiole-1,1(3H)-dioneCAS Number: 76-61-9MW: 466.59 g·mol⁻¹https://pubchem.ncbi.nlm.nih.gov/compound/65565 

BiCarbonate Indicator (500ml) A hydrogencarbonate indicator (hydrogencarbonate indicator) is a type of pH indicator that is sensitive enough to show a color change as