Phenolphthalein manufacturers and suppliers in india

Phenolphthalein

Properties

Melting point:: 261-263 °C (lit.)

Boiling point:: 417.49°C (rough estimate)

Density: 1.27 g/cm3 at 32 °C

refractive index: 1.5400 (estimate)

Flash point:: 24 °C

storage temp.: no restrictions.

solubility: Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane.

Colour Index: 764

form: Solid

pka: 9.4(at 25℃)

color: White to yellow-white

PH Range: 8.0(colorless)-10(Red)

PH: 7.8～10.0

Odor: Odorless

Water Solubility: <0.1 g/100 mL

λmax: 552nm, 553nm, 374nm, 205nm, 229nm, 276nm

Merck: 14,7243

BRN: 284423

Stability:: Stable. Incompatible with strong oxidizing agents, alkalies.

Major Application: Display device, sensors, semiconductors, fuel cells, photoreceptors, electronic packaging, authentication system for secure documents, inks, correction fluid, paints, detection of defects in films, floor coatings, textiles, corrosion testing, explosive, concrete, toys, detecting lipase activity of crop seeds, soaps, method for prevention of drugmisuse, cosmetics, diapers, detecting viable cells, carbohydrates, antimalarial, treating amyloid-associated diseases

LogP: 2.410

Safety Information

Symbol(GHS): GHS07,GHS08

Signal word: Danger

Hazard statements: H315-H341-H350-H361f

Precautionary statements: P202-P264-P280-P302+P352-P308+P313-P332+P313

Hazard Codes: Xn,T,F,Xi

Risk Statements: 40-22-10-36/38-23/25-11-36/37/38-68-62-45-39/23/24/25-23/24/25

Safety Statements: 45-36/37-33-24-16-7-36-26-53

WGK Germany: 3

RTECS: SM8380000

TSCA: Yes

HS Code: 29322910

Use

Phenolphthalein is a commonly used acid indicator with the range of color change between pH 8.2 (colorless) to 10.0 (red). It is also a drug, can be used as a laxative, acting on the colon for the treatment of constipation. It can be used as a pharmaceutical raw material in the pharmaceutical industry: it is suitable for habitual intractable constipation, and it has a variety of dosage forms such as tablets and suppositories. Also used in organic synthesis: mainly used in the synthesis of plastics, especially the synthesis of phthalazinone polyaryl ether ketone polyaryl ether ketone polymers, which have excellent heat resistance, water resistance, and chemical resistance Fibers, coatings and composite materials made from them are quickly widely used in electronic appliances, mechanical equipment, transportation, aerospace, atomic energy engineering, military and other fields. Phenolphthalein can be used as an acid-base indicator, an indicator for non-aqueous titration, and a reagent for chromatography.