Chemical Phenolphthalein 77

Basic Info.

Model NO.	77-09-8
Color Range of Indicator	8.2-10.0
Transport Package	Fiber Can
Specification	10kg, 25kg
Trademark	SHANYU
Origin	China
HS Code	293229100
Production Capacity	9000tons Per Year

Product Description

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.

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