M xylol STH for hromatogr. (3 ml)
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M xylol STH for hromatogr. (3 ml)
Dimethylbenzenes (xylols) C6H4(CH3)2 — hydrocarbons of aromatic series.
Colorless liquids with characteristic smell. Are slightly soluble input, are well dissolved vorganichesky solvents. Show properties of aromatic compounds, легкоалкилируются, хлорируются, сульфируются and are nitrated. Physical properties of isomers
Apply as rastvoritelilak, paints, mastics, etc. Use in synthesis of dyes. The para - xylol is applied as raw materials to synthesis of terephthalic acid — semi - product for receiving polyethyleneterephthalate. Cleaning of the xylols used as solvents is similar to purification of toluene with that difference that they with water do not form constant boiling mixture, but boil much above it; thus, they can also be cleared by simple distillation.
Dimethylbenzenes (xylols) C6H4(CH3)2 — hydrocarbons of aromatic series.
Colorless liquids with characteristic smell. Are slightly soluble input, are well dissolved vorganichesky solvents. Show properties of aromatic compounds, легкоалкилируются, хлорируются, сульфируются and are nitrated. Physical properties of isomers
| Melting temperature | Boiling temperature | Density at 20 °C | |
|---|---|---|---|
| Ortho - xylol | - 25,2 °C [1] | 144,4 °C [1] | 0,8802 g/cm ³ |
| Meta - xylol | −47,8 °C | 139,1 °C | 0,8642 g/cm ³ |
| Para - xylol | 13,26 °C | 138,3 °C | 0,8611 g/cm ³ |
Apply as rastvoritelilak, paints, mastics, etc. Use in synthesis of dyes. The para - xylol is applied as raw materials to synthesis of terephthalic acid — semi - product for receiving polyethyleneterephthalate. Cleaning of the xylols used as solvents is similar to purification of toluene with that difference that they with water do not form constant boiling mixture, but boil much above it; thus, they can also be cleared by simple distillation.
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M xylol STH for hromatogr. (3 ml)