P-XYLENE manufacturers and suppliers

P-XYLENE suppliers

Properties

Melting point:: 12-13 °C (lit.)

Boiling point:: 138 °C (lit.)

Density: 0.861 g/mL at 20 °C (lit.)

vapor density: 3.7 (vs air)

vapor pressure: 9 mm Hg ( 20 °C)

refractive index: n20/D 1.495(lit.)

Flash point:: 77 °F

storage temp.: Store at +5°C to +30°C.

solubility: water: soluble0.2g/L

form: Liquid

pka: >15 (Christensen et al., 1975)

color: Colorless

Relative polarity: 0.074

Odor: Like benzene; characteristic aromatic.

Odor Threshold: 0.058ppm

explosive limit: 1.1-7%(V)

Water Solubility: Miscible with alcohol, ether, acetone, benzene and chloroform. Immiscible with water.

λmax: λ: 294 nm Amax: 1.00
λ: 320 nm Amax: 0.10
λ: 350 nm Amax: 0.05
λ: 380-400 nm Amax: 0.01

Merck: 14,10081

BRN: 1901563

Henry's Law Constant: 16.1 at 45.00 °C, 18.6 at 50.00 °C, 20.3 at 55.00 °C, 23.4 at 60.00 °C, 30.5 at 70.00 °C (static headspace-GC, Park et al., 2004)

Exposure limits: TLV-TWA100 ppm (～434 mg/m³) (ACGIH, MSHA, and OSHA); STEL 150 ppm (～651 mg/m³) (ACGIH); ceiling 200 ppm/ 10 min (NIOSH); IDLH 1000 ppm (NIOSH).

Dielectric constant: 2.6（20℃）

Stability:: Stable. Incompatible with oxidizing agents. Hygroscopic. Flammable.

InChIKey: URLKBWYHVLBVBO-UHFFFAOYSA-N

LogP: 3.16 at 20℃

Safety Information

Symbol(GHS): GHS02,GHS07,GHS08

Signal word: Danger

Hazard statements: H226-H304-H312+H332-H315-H335-H412

Precautionary statements: P210-P273-P280-P301+P310-P303+P361+P353-P331

Hazard Codes: Xn,T,F

Risk Statements: 10-20/21-38-39/23/24/25-23/24/25-11

Safety Statements: 25-45-36/37-16-7

RIDADR: UN 1307 3/PG 3

WGK Germany: 2

RTECS: ZE2625000

Autoignition Temperature: 984 °F

TSCA: Yes

HazardClass: 3

PackingGroup: III

HS Code: 29024300

Toxicity: LD50 orally in Rabbit: 3910 mg/kg

Use

p-xylene is an aromatic hydrocarbon based on benzene with two methyl substituents with the chemical formula C8H10 or C6H4(CH3)2. It is one of the three isomers of dimethylbenzene known collectively as xylenes. The p stands for para, identifying that he two methyl groups in p-xylene occupy the diametrically opposite substituent positions 1 and 4. p-Xylene is a colorless, flammable liquid practically insoluble in water. p-Xylene is a colorless watery liquid with a sweet odor and is dangerously flammable, with a flash point of 27C. p-Xylene is widely used as a feedstock (or building block) to manufacture other industrial chemicals, notably terephthalic acid (TPA), purified terephthalic acid (PTA) and dimethyl-terephthalate (DMT). It also may be polymerised directly to produce parylene.

You can find P-XYLENE suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.