Hangzhou Lingrui Chemical Co.,Ltd.
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China (Mainland)
Business Type:Other
Tel: 86 571-88092529
Mobile: 18958069012
Tel: 86 571-88092529
Fax: 86 571-87334908
URL: http://www.lingruichem.com
Province/state: Zhejiang
City: Hangzhou
Street: 201-B 2# Building Qinglan science park, 321# JinPeng Str. Xihu District Hangzhou City, PR.CHINA
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CAS NO.2411-89-4
Competitive price 2411-89-4 High Quality o-Cresolphthalein Complexone
o-cresolphthalein is also called o-toluene phenolphthalein (C22H18O4mol346.38) white or yellow powder, easily soluble in ethanol and ether; Insoluble in water, soluble in dilute alkali, blue, pH 8.2-9.8 (color from colorless to red); The maximum absorption peak is 566(381)mm.
o-cresolphthalein complexing agent is a metal complexation indicator and also an acid-base indicator. Chelate with calcium and magnesium in acidic solution to form purple chelate.
| Molecular Formula | C32H32N2O12 |
| Molar Mass | 636.61 |
| Density | 1.515±0.06 g/cm3(Predicted) |
| Melting Point | 181-185°C (dec.)(lit.) |
| Boling Point | 892.1±65.0 °C(Predicted) |
| Flash Point | 493.4°C |
| Water Solubility | SLIGHTLY SOLUBLE |
| Solubility | Easily soluble in water, insoluble in ethanol and ether. Colorless alkali solution can be complexed with calcium, strontium, and barium salts to form purple or dark red, complexed with magnesium to be pink, and complexed with heavy metals to be colorless. Melting point 181~185 ℃ (decomposition). The maximum absorption wavelength is 575(377)nm. The commodity also has sodium containing water. |
| Vapor Presure | 3.5E-34mmHg at 25°C |
| Appearance | White to brown crystalline powder |
| Color | white to off-white |
| Maximum wavelength(λmax) | ['575nm, 377nm'] |
| BRN | 381994 |
| pKa | 1.47, 8.24(at 25℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| MDL | MFCD00005911 |
| Use | Used as complexation indicator |
Established in 2010, located in Hangzhou Qinglan science park, lingruichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals tovarious industries.n our R&D centre. we have a staff of skilled and experienced research chemists. This has enabled us to meet the special reauirements of our customers and it has enabled us to provide quality products at competitive prices.
1. How can we guarantee quality
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.What can you buy from us
Plant Extracts,Cosmetics Raw Materials,Vitamin Raw Materials,Pharmaceutical Raw Materials and Intermediates
3. Why should you buy from us not from other suppliers
Our company mainly devoted in producing pharmacetical intermediates , Vitamins , and health supplement , the quality and technical content can reach the advance level in China .Our products are sold well in China as well as in more than 20 countries.
Lingrui's credo is committed to your reliable business partner,reliable quality, competitive prices and superior service, lf you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future !