| Customization: | Available |
|---|---|
| CAS No.: | 77-09-8 |
| Formula: | C20h14o4 |
|
Still deciding? Get samples of US$ 50/kg
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Product Name Phenolphthalein
Identification
Synonyms 2-[Bis(4-hydroxyphenyl)methyl]benzoic acid; 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone; 3,3-Bis(4-hydroxyphenyl)phthalide
Molecular Formula C20H14O4
Molecular Weight 318.33
CAS Number 77-09-8
EINECS/ELINCS 201-004-7
Structure
Properties
Appearance white powder
Melting Point 258-263ºC
Density 1.299 g/cm3
Solubility <0.1 g/100ml
Stability stable under ordinary conditions
Specification
| Items | Specifications |
| Characteristics | A white or almost white powder, practically insoluble in water, soluble in alcohol |
| Melting Point | it melts at about 260ºC |
| Identification | A:positive B:positive |
| Appearance Of Solution | The solution is clear and not more intensely coloured than reference solution Y7 |
| Related Substances | 0.5% max |
| Heavy Metals | 0.001% max |
| Acidity Or Alkalinity | complies |
| Chlorides | 0.01% max |
| Sulphates | 0.02% max |
| Loss On Drying | 0.5% max |
| Sulphated Ash | 0.1% max |
| Assay | 98.0-101.0%(c20h14o4) |
| Microorganism | tpc<1000cfu/g |
| y and m <100cfu/g | |
| e.coli: absent | |
| staphylcoccus aureus: absent |
Application
Phenolphthalein is one of the most widely used indicators. Phenolphthalein is used as a laxative to treat incomplete and infrequent bowel movement.
Phenolphthalein also is used in automotive and aviation industries.
Packing and Storage
Packing In 25kgs cardboard drum.
Storage Keep container tightly closed in a dry and well-ventilated place.
Safety Information
Non-hazardous for air, sea and road freight.
Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.
Frequently Asked Questions
Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight;
For those high value products, you just need to freight and certain product cost. When we both cooperate for
some times or when you are our VIP customer, free sample will be offered when you need.
Q2: Which payment is available for your company?
Re: T/T, L/C. You can choose the one which is convenient for you.
Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)
or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,
shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on
where the port is.
Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.
Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide
for you all are qualified. We will have goods tested and provide COA before delivery for sure.
){kind=link}