3, 5-dihydroxytoluene, also known as p-hydroxycresyl
Nature:
Appearance: 3, 5-dihydroxytoluene is a colorless to pale yellow crystal or crystalline powder.
Solubility: It can be dissolved in alcohols, ethers and phenolic solvents, slightly dissolved in water.
Stability: 3, 5-dihydroxytoluene is stable at room temperature, but it is easy to burn at open flames and high temperatures.
Preparation:
The preparation of 3, 5-dihydroxytoluene can be obtained by sulfonic reaction of toluene, and then through the steps of reduction and turbidization, hydrogen hydrolysis and purification.
Safety information:
3, 5-dihydroxytoluene is irritating to the eyes and skin and should be rinsed with plenty of water immediately after contact.
Avoid inhaling steam from powder or solution. The workplace should be well ventilated.
Wear personal protective equipment such as protective gloves, glasses, and protective clothing during operation to ensure safe operation.
Keep away from fire and oxidants, and avoid high temperature and direct sunlight.
Chemical reagent: 3, 5-dihydroxytoluene can be used as a chemical reagent for catalysts, ligands and reducing agents in organic synthesis reactions.
Pigments and dyes: It is widely used in the preparation of pigments and dyes, and can be used to produce phenolic resin, phenolic glass and other products.
Peb muaj ntau lub Hoobkas zoo nrog kev koom tes sib sib zog nqus, uas tuaj yeem muab koj cov khoom zoo thiab cov nqi sib tw. Thiab peb tseem tuaj yeem muab cov luv nqi rau kev yuav khoom ntau.Thiab peb koom tes nrog ntau lub tuam txhab xa khoom xa tuaj, tuaj yeem xa cov khoom lag luam kom nyab xeeb thiab ntseeg nkaws rau koj txhais tes. Lub sij hawm xa tuaj yog li 3-20 hnub tom qab tau txais kev pom zoo ntawm kev them nyiaj.
Molecular Formula | C7H8O2 |
Molar Mass | 124.14 |
Density | 1.2900 |
Melting Point | 106-112°C(lit.) |
Boling Point | 290 °C |
Flash Point | 159 °C |
Solubility | Soluble in water, soluble in alcohol and ether, easily soluble in benzene; slightly soluble in chloroform and carbon disulfide. |
Vapor Presure | 0.00122mmHg at 25°C |
Qhov tshwm sim | White rhomboid crystal |
Color | Pink-gray to pink-brown |
Merck | 14,6864 |
BRN | 1071903 |
pKa | 9.56±0.10(Predicted) |
Storage Condition | Store at <= 20°C. |
Kev ruaj ntseg | Hygroscopic |
Sensitive | Air Sensitive |
Refractive Index | 1.4922 (estimate) |
1. Koj puas yog lub Hoobkas lossis tuam txhab lag luam?
Peb yog ib qho kev sib koom ua ke kev lag luam thiab kev lag luam, muab kev pabcuam ib-nres.OEM tuaj yeem txais.
2. Koj puas muab cov qauv? Puas yog dawb lossis ntxiv?
Cov qauv dawb.Cov qauv tus nqi thauj khoom yuav tsum tau them los ntawm koj sab.
3. Koj puas muaj daim ntawv pov thawj ntsig txog kev tswj xyuas zoo?
ISO 9001: 2008 ntawv pov thawj los xyuas kom meej qhov zoo.
4. Kuv yuav muab dab tsi kom tau txais cov lus hais?
Pls qhia peb txog cov khoom lag luam uas koj xav tau, xaj kom muaj nuj nqis, chaw nyob thiab cov kev xav tau tshwj xeeb.Cov lus hais yuav ua rau koj siv sijhawm.
5. Hom kev them nqi twg koj nyiam? Cov nqe lus twg raug lees txais?
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Cov khoom qeb