$700.00
22 Tons (MOQ)
How to Buy Calcium Carbide Online 50-80mm Cac2
Xingtai Haina Chemical Products Co., Ltd
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Factory Supply High Purity Phenolphthalein 99% 77-09-8 USP Grade
| Price | $11.50 |
|---|---|
| Min Order | 500 kg |
| Availability | In Stock |
| Shipping From | Liaoning, China |
| Popularity | 517 people viewed |
Model NO.:
AR
CAS No.:
77-09-8
Formula:
C20h14o4
EINECS:
201-004-7
Classification:
Organic Analytical Reagents
Grade:
AR
Specific Usage:
For Biological Purpose, For Synthesis
Content:
99.5%
Usage:
Laboratory Reagents, Analytical Reagents
Source:
Concrete
Habit Appellation:
Fine Chemicals
Application:
Scientific Research
Property:
Organic Reagent
Molecular Weight:
318.3
Odor:
Odorless
Melting Point:
496 to 504 °f (Ntp, 1992)
Solubility:
Ess Than 1 Mg/Ml at 66° F (Ntp, 1992)
Density:
1.299 at 77 °f (Ntp, 1992)
Stability/Shelf Life:
Stable in Air.
Decomposition:
When Heated to Decomposition It Emits Acrid Smoke
Transport Package:
25 Kgs Fiber Drums
Specification:
99.5%
Origin:
Shenyang
HS Code:
293229100
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.
| 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:Positive B:Positive | A:Positive B: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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