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PH Indicators

PH Indicators works as halochromic chemical compound which when added to solution in small amounts allows determination of pH. With the possibility of determining it visually, it results in color of solution to change depending on pH. Indicators also show change in other physical properties compromising olfactory indicators show change in odor. Providing one of the main uses in biology and analytical chemistry, it also finds frequent usage in titrations in biology and analytical chemistry for determining extent of chemical reaction.


Methyl Orange

Methyl Orange works as pH indicator and finds suitability in titrations as it provides for changing color at pH of mid-strength. We can offer it in tamper proof finish in both standard as well as customized packaging support that meets the industrial standards.

Applications :
Used in –
  • Dyeing industry
  • Printing textiles industry

MOQ 50kg :

C.I.No. 114510
CAS NO 547-58-0
Molecular Formula C14H14N3NaO3S
Molecular Weight 327.33 gm/mole
Appearance Orange Powder
Infrared Spectrum Conforms To Structure
Clarity Of Solution Passes Test
Visual Transition PH 3.0 Pink Or Red
Interval PH 3.2 Pinkish-Orange

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Methyl Red

Methyl Red is used for conducting mixed-acid fermentation where it contains peptone, glucose, and phosphate buffer. It also produces desired acid for overcoming buffering capacity of broth that causes decrease in pH results. Further, organisms perform other types of fermentation also cannot overcome buffering capacity of broth.

Applications :
Suitable for conduction tests involving –
  • Indole
  • Methyl-Red

MOQ 50kg :

C.I.No. 13020
CAS NO 493-52-7
Chemical Formula C15H15N3O2
Molecular Weight 269.31 gm/mole
Melting Point 179-182° C
Dye Content =>95%
Absorption Max (pH4.5) 523-526 nm
Absorption Max (pH6.2) 430-434 nm
Absorptivity (1%,1cm) pH 4.5 >1330
Absorptivity (1%,1cm) pH 6.2 >700
Transition Range pH 4.2 - 6.2 Red - Yellow
Loss On Drying (110° c) < 5%

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