Petroleum Mixed Xylene

1、 Product overview

Name	Petroleum Mixed Xylene	CAS：	1330-20-7
Synonymous	Xylene	Chinese name	石油混合二甲苯
Molecular formula	C8H16	Molecular weight	112
Stable explosion limit	1.0%-7.0%	Density	0.88
Solubility	Soluble in ethanol and ether, insoluble in water.	Danger marking	3.2

2、 Quality index

Item	Index		Experimental method
Item	3 ℃ mixed xylene	5 ℃ mixed xylene
Appearance	Transparent liquid, free of insoluble water and mechanical impurities	Transparent liquid, free of insoluble water and mechanical impurities	-
The color (Hazen unit platinum cobalt color number) is not darker than	20	20	GB/T3143
Density（20℃）/（kg/m³）	862-868	860-870	GB/T2018 SH/T0604
The initial boiling point shall not be lower than	137.5	137	GB/TR3146
Final boiling point not higher than	141.5	143	GB/TR3146
The total distillation range is greater than	3	5	GB/TR3146
Pickling colorimetry: the color of the acid layer is not deeper than the weight of potassium dichromate in the standard solution containing potassium dichromate in 1000ml dilute acid (g)	0.3	0.5	GB/T2012
Total sulfur content / (mg / kg) not more than	2	2	SH/T0253
Evaporation residue (mg / 100ml) not more than	3	3	GB/T3209
Copper corrosion	Pass	Pass	GB/T11138
Neutral test	neutral	neutral	GB/T1816
Bromine index / (mg / 100ml)	The supplier and the Buyer agree on one of the following three detection methods: SH / t0630, SH / t1551 and SH / t1767

3、 Purpose:

It is a mixture of p-xylene, o-xylene, m-xylene and ethylbenzene, colorless and transparent liquid. It is widely used as organic solvent and raw material for synthetic medicine, coating, resin, dye, pesticide and so on.

4、 Precautions

This product is a flammable hazardous chemical. Pay attention to ventilation, fire prevention and cooling during use, transportation and storage to avoid safety accidents.

Properties

Xylene is a colorless, transparent and aromatic liquid. It is the product of two hydrogen substituted by methyl on the benzene ring. The boiling point is 137 ~ 140 ℃. Xylene is divided into three isomers: o-xylene, m-xylene and p-xylene according to the different positions of the two methyl groups. In industry, xylene refers to the mixture of the above isomers and ethyl benzene. The grade is generally superior grade and first grade of purified water with distillation range of 3 ℃ and 5 ℃. It can be freely mixed with ethanol, chloroform or ether and is insoluble in water. It is widely used in organic solvents and synthetic medicine, coatings, resins, dyes, explosives and pesticides. Xylene is moderately toxic and carcinogenic. Xylene pollution mainly comes from synthetic fiber, plastic, fuel, rubber, additives of various coatings, adhesives and waterproof materials, as well as combustion gas of fuel and tobacco leaves.

CAS No.

1330-20-7

Formula

C8H10

Molecular Mass

106.16500

Exact Mass

106.07800

PSA

0.00000

Logp

2.30340