Sigma-Aldrich
P-Xylene, Reagent Plus® 99%, 4 Liter
- Part Number:
- MIL-134449-4L
- Lead Time:
- 2-4 weeks
- Shipping:
- FREE SHIPPING on most orders over $50*
- Quantity:
- each
- Size:
- 4 liter / 1 gallon
- Style:
- chemical
- DOT Rated:
- HazMat Transport Fee Required
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Description
P-Xylene ReagentPlus 99%, 4 Liter
Synonym: 1,4-Dimethylbenzene
- CAS Number 106-42-3
- Linear Formula C6H4(CH3)2
- Molecular Weight 106.17
- Beilstein/REAXYS Number 1901563
- EC Number 203-396-5
- MDL number MFCD00008556
- PubChem Substance ID 329750177
General description
p-Xylene is an isomeric form of xylene. It undergoes Friedel-Crafts acylation reaction with various acids in the presence of zeolites (catalyst). It can be obtained from the mixtures of isomeric forms of xylene and ethylbenzene isolated from the naptha fraction of petroleum. Also, it can be prepared from toluene by employing ZSM (Zeolite Socony Mobil)-5 catalysts. It is a raw material for the manufacture of PET (poly(ethylene terephthalate)) bottles. Its sustainable synthesis from ethylene and dimethylfuran in the presence of zeolite catalysts has been reported.
Application
p-Xylene may be used in the synthesis of poly-p-xylene and terephthalic acid.
p-xylene may be used in the single drop microextraction of the corresponding organochlorine pesticides in vegetables, separated via gas chromatography(GC)coupled with mass spectrometry(MS).
| Grade | ReagentPlus® |
| Vapor Density | 3.7 (vs air) |
| Vapor Pressure | 9 mmHg (20°C) |
| InChI Key | URLKBWYHVLBVBO-UHFFFAOYSA-N |
| Assay | 99% |
| Autoignition Temperature | 984°F |
| Expl. Lim. | 7 % |
| Refractive Index | n20/D 1.495 (lit.) |
| bp | 138°C (lit.) |
| mp | 12-13°C (lit.) |
| Solubility | water: soluble 0.2 g/L |
| Density | 0.861 g/mL at 20°C (lit.) |
Safety Information
GHS02, GHS07
Signal word Warning
Hazard statements H226-H312 + H332-H315
Precautionary statements P210-P261-P280-P370 + P378RIDADR UN1307 - class 3 - PG 3 - Xylenes
WGK Germany 2
RTECS ZE2625000
Flash Point(F) 77°F
Flash Point(C) 25°C
Documents
Warnings
Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.
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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning
Please note: This product is not returnable.
1.045 g/mL at 25°C (lit.)