Thymolphthalein
Also known as: LABOTEST-BB LT00451890
White crystalline powder. Soluble in ether, acetone, sulfuric acid and alkali solution, insoluble in water. It is often used as an indicator of acid and alkali, with a pH change range of 9.4-10.6 and a color change from colorless to blue. It is often used to prepare 0.1% 90% ethanol solution. It is also often combined with other indicators to form a gentle indicator, making its color change range narrower and observation clearer.
| Payment & Shipping Terms | Supply Capacity | ||
|---|---|---|---|
| Payment Terms: | T/T, WU | Production Capacity: | 100T/year |
| Min. Order: | 25KG | Packing: | according to the customer's requirements |
| Means of Transport: | Ocean, Air, Land | Delivery Date: | 7 days |
Thymolphthalein
CAS 125-20-2
White crystalline powder. Soluble in ether, acetone, sulfuric acid and alkali solution, insoluble in water. It is often used as an indicator of acid and alkali, with a pH change range of 9.4-10.6 and a color change from colorless to blue. It is often used to prepare 0.1% 90% ethanol solution. It is also often combined with other indicators to form a gentle indicator, making its color change range narrower and observation clearer.
We can customize according to customer's requirement
If you have any question pls mail us or call us.
| CAS Number | 125-20-2 |
|---|---|
| Molecular Formula | C28H30O4 |
| Molecular Weight | 430.54 |
| Place of Origin | Zhejiang,China (Mainland) |
Send an inquiry for Thymolphthalein
Related products
1,10-Phenanthroline Hydrate
O-phenanthroline (o-phenanthroline) is a commonly used redox indicator. As a simple, cheap and fast detection method, o-phenanthroline colorimetry is widely used in the detection and analysis of iron. The principle is that in the solution of pH = 3 ~ 9, o-phenanthrene and Fe2 + will form a stable orange red complex. The color depth of the complex can be used to determine the content of iron ions in the sample to be tested.
1-(2-Pyridylazo)-2-naphthol
Orange red amorphous powder. Melting point 141 ℃, soluble in methanol, ethanol, benzene, ether, chloroform and hot dilute alkali solution, insoluble in water. The solution is pink above pH12, orange red in weak acid and purple in concentrated sulfuric acid. Its metal complex is pink or red.
5,5′-Dithiobis(2-nitrobenzoic Acid)
Widely used in biochemical research, it is a sensitive reagent for the determination of thiol group in protein, polypeptide and tissue. Monitoring of organophosphorus pesticide poisoning (determination of cholinesterase).
8-Hydroxyquinoline
8-hydroxyquinoline is a white or light yellow crystalline or crystalline powder. It is a white or light yellow crystalline or crystalline powder, insoluble in water and ether, soluble in ethanol, acetone, chloroform, benzene or dilute acid, and can be sublimated. Less corrosive. Low toxicity, ld504800mg / kg.
AZURE II EOSINATE
The main components are the mixture of methylene blue, azure I and eosin.
Acid Blue 93
It is a weak acid dye, soluble in water and alcohol. Methyl blue is widely used in animal and plant production technology. When combined with eosin, it can dye nerve cells, which is also an indispensable dye in bacterial production. Aqueous solution is the living dye of protozoa. Methyl blue is very easy to oxidize, so it can not be preserved for a long time after dyeing.
Acid Green 1
Biological staining, complexation indicator. Naphthol green B can be combined with acid chrome blue K to form a mixed indicator KB indicator, which makes its color change more acute, from purplish red to blue green.
