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.
Tá go leor monarchana ardchaighdeáin againn le comhar domhain, ar féidir leo táirgí ardchaighdeáin agus praghsanna iomaíocha a sholáthar duit. Agus is féidir linn lascainí a thabhairt freisin le haghaidh ceannach mórchóir. Tá an t-am seachadta thart ar 3-20 lá tar éis an íocaíocht a dhaingniú.
Molecular Formula | C7H8O2 |
Molar Mass | 124.14 |
Density | 1.2900 |
Leáphointe | 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 |
Dealramh | 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. |
Cobhsaíocht | Hygroscopic |
Sensitive | Air Sensitive |
Refractive Index | 1.4922 (estimate) |
1. An bhfuil tú ag monarcha nó ag cuideachta thrádála?
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3. An bhfuil aon deimhnithe agat a bhaineann le rialú cáilíochta?
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4. Cad ba cheart dom a sholáthar chun luachan a fháil?
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5. Cén cineál modh íocaíochta is fearr leat? Cén cineál téarmaí a nglactar leo?
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