Chemical · Product Detail
Phenolphthalein
Acid-base indicator and specialty organic intermediate for professional chemical use.
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Phenolphthalein at a Glance
ZXCHEM is a phenolphthalein supplier and exporter in China. Phenolphthalein, CAS 77-09-8, is an organic acid-base indicator and specialty synthesis intermediate supplied as white to almost-white powder.
Request a free sample for testing.
Standard lead time is approximately 14 days from order confirmation.
Phenolphthalein Specifications
Grade-specific supply limits. The agreed specification and batch COA govern delivery.
Commercial Information
Storage & Shipping
Storage Conditions
Store locked and tightly closed in a cool, dry, ventilated area. Protect from light, moisture and heat; segregate from strong oxidizing agents. Restrict access to trained personnel.
Packaging Integrity
Inspect container seals, liners and pallet wrapping before unloading. Retain product and lot labels; use clean, dry tools and reseal opened packages promptly.
Packaging
25 kg fibre drums with PE liners
Handling & Protection
Use contained powder handling and effective dust extraction. Avoid ingestion and all unnecessary exposure; wear suitable gloves, protective clothing and eye protection. Establish respiratory controls through a qualified exposure assessment.
What Is Phenolphthalein?
Phenolphthalein, CAS 77-09-8, C20H14O4, is an acid-base indicator that turns pink above about pH 8.2. It is used in titration, test kits and concrete carbonation testing, and as a synthesis intermediate.
The supply grade has assay 98.0–101.0%, related substances ≤0.5%, loss on drying ≤0.5% and sulfated ash ≤0.1%. It is practically insoluble in water and soluble in alcohol.
It is not regulated as dangerous goods.
As a phenolphthalein supplier and exporter in China, ZXCHEM packs the white powder in 25 kg fibre drums with PE liners.
See all chemical intermediates in our catalog.
Phenolphthalein Applications
Titration indicator
Indicator for acid-base titration, dissolved in alcohol.
Test kits and concrete testing
Indicator for carbonation depth in concrete and test kits.
Synthesis
Intermediate for specialty chemicals.
Why Source Phenolphthalein from ZXCHEM
Combined chemical orders
Source several chemical raw materials through one ZXCHEM contact. We coordinate product selection, quotations and suitable consolidated shipments so you can plan the order with one team.
Dedicated R&D Laboratory
Discuss specifications, sample results and application questions with our technical team. Our dedicated R&D laboratory supports product testing and helps clarify material selection.
Experienced Chemical Logistics
ZXCHEM has more than 30 years of experience in dangerous-goods transportation. We coordinate suitable shipments through logistics companies in which we hold equity interests in Qingdao, Shanghai, Guangzhou and Tianjin.
Dedicated Purchasing Support
Your account manager follows the order from quotation and contract signing through shipment and after-sales support. One contact coordinates technical documents, commercial details and delivery updates.
Phenolphthalein FAQ
Which Phenolphthalein grade should I choose?
The listed supply specification is Assay 98.0–101.0%. Check the TDS for assay and impurity limits, then test a sample for compatibility and performance in your process.
Can I request a Phenolphthalein sample for testing?
Yes. We can provide free samples for testing. Tell us the application, the grade you need and the tests you plan to run.
How is Phenolphthalein packed and shipped?
Standard packing is 25 kg fibre drums with PE liners. The usual MOQ is 1,000 kg, with a lead time of approximately 14 days from order confirmation. It ships as non-dangerous goods.
Which documents are available for Phenolphthalein?
The TDS lists the supply specification and the SDS covers safety and transport; both can be downloaded on this page. Each shipment comes with a batch COA.
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