In-stock Factory Supply High Purity USP Grade Phenolphthalein 99% CAS 77-09-8

Product Description

Phenolphthalein appears as white or yellowish-white to pale orange fine crystalline powder. Odorless. Aqueous solution is acidic. Colorless to pH 8.5; pink to deep-red above pH 9. Colorless in presence of large amounts of alkali. Tasteless.Phenolphthalein is an organic compound used as a laboratory reagent and pH indicator. Phenolphthalein exerts laxative effects by stimulating the intestinal mucosa and constricting smooth muscles. However, phenolphthalein is no longer used as a laxative due to the suspected carcinogenicity of this compound.
Product Spesfication

TEST ITEM:	SPECIFICATION:	RESULTS:
Characteristics:	A white or almost white powder, practically insoluble in water, soluble in alcohol.	A white powder, practically insoluble in water, soluble in alcohol.
Melting Point	It melts at about 260°C-262°C	261°C ~262°C
Identification	A:PositiveB:Positive	A:PositiveB:Positive
Appearance of solution	The solution is clear and not more intensely coloured than reference solution Y7	Complies
Related substances	Less than 0.01%	<0.01%
Heavy metals	Not more than0.001%	<0.0009%
Acidity or alkalinity	Complies	Complies
Chlorides	Not more than 0.01%	<0.01%
Sulphates	Not more than 0.02%	<0.02%
Loss on drying	Not more than 0.5%	0.12%
Sulphated ash	Not more than 0.1%	0.01%
Assay	98.0%-101.0%(C20H14O4)	99.6%
Storage condition:	Store in well closed drums, in cool and dry storage area.

USUAL PACKAGE: 25kg net paper drum SHELF LIFE: Three Years

Packaging & Shipping

TRANSPORTATION

Samples or samll order we suggest Express by airline.

Mass order we suggest using container by sea.

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Company Profile

GreatAp Chemicals Co. Ltd established in 2000, is a high-tech enterprise specializing in the research, production, and global sales of water treatment chemicals, polyquaternium series for daily use, metal hydrides, new energy materials, and specialty chemicals.

The company operates automated production lines equipped with advanced quality control systems, including gas and liquid chromatography. It collaborates closely with universities and research institutions in Shanghai, Hebei, and Tianjin to enhance product quality and R&D capabilities.

With the mission of "Creating a cleaner, safer, and better life for humanity," GreatAp Chemicals is committed to becoming a world-class supplier of specialty chemical products, working hand-in-hand with customers to build a brighter future.

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