Name | 1,3-Benzenedimethanol |
Synonyms | m-Xylene glycol m-xylene-α,α'-diol m-xylene-à,à'-diol Isophthalyl alcohol 1,3-Benzenedimethanol 1,3-Phenylenebismethanol m-Xylene-alpha,alpha-diol benzene-1,3-diyldimethanol 1,3-DI (Hydroxymethyl) Benzene 1,3-Bis(hydroxymethyl)benzene~m-Xylene-alpha,alpha-diol |
CAS | 626-18-6 |
EINECS | 210-934-2 |
InChI | InChI=1/C8H10O2/c9-5-7-2-1-3-8(4-7)6-10/h1-4,9-10H,5-6H2 |
Molecular Formula | C8H10O2 |
Molar Mass | 138.16 |
Density | 1.1610 |
Melting Point | 56-60 °C (lit.) |
Boling Point | 154-159 °C/13 mmHg (lit.) |
Flash Point | 154-159°C/13mm |
Water Solubility | Soluble in water. |
Vapor Presure | 0.00157mmHg at 25°C |
Appearance | Solution, may develop some turbidity precipitate |
Color | Clear to hazy colorless to yellow |
BRN | 1562398 |
pKa | 13.98±0.10(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.5090 (estimate) |
MDL | MFCD00004649 |
Hazard Symbols | Xn - Harmful |
Risk Codes | R20/22 - Harmful by inhalation and if swallowed. R36 - Irritating to the eyes R22 - Harmful if swallowed |
Safety Description | S9 - Keep container in a well-ventilated place. S7 - Keep container tightly closed. S23 - Do not breathe vapour. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29062900 |
Introduction | 1, 3-benzenedimethanol is an organic intermediate, which can be reduced from isophthalonitrile to 1,3-benzene dimethyl amine, and then diazotization reaction to obtain 1,3-benzene dimethanol; Or reduction of ester group from dimethyl isophthalate to obtain 1,3-benzene dimethanol. |
preparation | put isophthalonitrile into the autoclave, control the pressure of the autoclave to 4.0MPa, add anhydrous ethanol and potassium hydroxide, hydrogen gas was introduced and the reaction time was 10min to obtain 1, 3-xylylenediamine. Sulfuric acid was added to 1, 3-xylylenediamine, the pH was controlled to 5, stirred and heated, the temperature was controlled to 180-200 ° C., the reaction was 30-40min, and then the temperature was lowered to obtain 1, 3-benzenedimethanol. |
EPA chemical substance information | information is provided by: ofmpeb.epa.gov (external link) |