o-Xylene
- CAS No.
- 95-47-6
- Chemical Name:
- o-Xylene
- Synonyms
- XYLENES;1,2-DIMETHYLBENZENE;XYLOL;1，2-Xylene;o-Xylol;YLENE;ORTHO-XYLENE;2-methyltoluene;o-Dimethylbenzene;2-xylene
- CBNumber:
- CB1854693
- Molecular Formula:
- C8H10
- Molecular Weight:
- 106.17
- MOL File:
- 95-47-6.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/4/25 17:59:01
| Melting point | -26--23 °C (lit.) |
|---|---|
| Boiling point | 143-145 °C (lit.) |
| Density | 0.879 g/mL at 20 °C (lit.) |
| vapor density | 3.7 (vs air) |
| vapor pressure | <0.1 atm ( 21.1 °C) |
| refractive index |
n |
| Flash point | 90 °F |
| storage temp. | Store below +30°C. |
| solubility | water: partially soluble0.1705 g/L at 25°C |
| form | Solid or Crystalline Powder |
| pka | >15 (Christensen et al., 1975) |
| color | Yellow to beige |
| Odor | Benzene-like; characteristic aromatic. |
| explosive limit | 1.0-7.6%(V) |
| Odor Threshold | 0.38ppm |
| Water Solubility | Sparingly soluble in water. (0.2g/L) |
| λmax |
λ: 288 nm Amax: 1.00 λ: 300 nm Amax: 0.40 λ: 325 nm Amax: 0.05 λ: 350-400 nm Amax: 0.01 |
| Merck | 14,10081 |
| BRN | 1815558 |
| Henry's Law Constant | 14.0 at 45.00 °C, 16.4 at 50.00 °C, 19.0 at 55.00 °C, 21.3 at 60.00 °C, 26.3 at 70.00 °C (static headspace-GC, Park et al., 2004) |
| Exposure limits | NIOSH REL: 100 ppm (435 mg/m3), STEL 150 ppm (655 mg/m3), IDLH 900 ppm; OSHA PEL: TWA 100 ppm; ACGIH TLV: TWA 100 ppm, STEL 150 ppm (adopted). |
| Dielectric constant | 2.5699999999999998 |
| Stability | Stable. Incompatible with oxidizing agents. Flammable. Hygroscopic. |
| InChIKey | CTQNGGLPUBDAKN-UHFFFAOYSA-N |
| LogP | 3.16 at 20℃ |
| CAS DataBase Reference | 95-47-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzene, 1,2-dimethyl-(95-47-6) |
| EPA Substance Registry System | o-Xylene (95-47-6) |
SAFETY
Risk and Safety Statements
| 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 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 100 ppm (435 mg/m3), STEL: 150 ppm (655 mg/m3) | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | ZE2450000 | |||||||||
| Autoignition Temperature | 867 °F | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29024100 | |||||||||
| Toxicity | Acute oral LD50 in rats is approximately 5 g/kg (quoted, RTECS, 1992). | |||||||||
| IDLA | 900 ppm | |||||||||
| NFPA 704 |
|
o-Xylene price More Price(27)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | X1040 | o-Xylene reagent grade, ≥98.0% | 95-47-6 | 1L | ₹2710 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 95662 | o-Xylene puriss. p.a., ≥99.0% (GC) | 95-47-6 | 250ML | ₹3390 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | RTC000102 | o-Xylene Pharmaceutical Secondary Standard; Certified Reference Material | 95-47-6 | 20ML | ₹11410 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | PHR1312 | o-Xylene Pharmaceutical Secondary Standard; Certified Reference Material | 95-47-6 | 1G | ₹6900 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 95662 | o-Xylene puriss. p.a., ≥99.0% (GC) | 95-47-6 | 1L | ₹11630 | 2022-06-14 | Buy |
o-Xylene Chemical Properties,Uses,Production
Chemical Properties
colourless liquid
Physical properties
Clear, colorless liquid with an aromatic odor. An odor threshold concentration of 380 ppbv was reported by Nagata and Takeuchi (1990).
Uses
o-Xylene is largely used in the production of phthalic anhydride, and is generally extracted by distillation from a mixed Xylene stream in a plant primarily designed for p-Xylene production.
Definition
ChEBI: A xylene substituted by methyl groups at positions 1 and 3.
General Description
A colorless watery liquid with a sweet odor. Less dense than water. Insoluble in water. Irritating vapor.
Air & Water Reactions
Highly flammable. Insoluble in water.
Reactivity Profile
1,2-Dimethylbenzene may react with oxidizing materials. .
Health Hazard
Vapors cause headache and dizziness. Liquid irritates eyes and skin. If taken into lungs, causes severe coughing, distress, and rapidly developing pulmonary edema. If ingested, causes nausea, vomiting, cramps, headache, and coma. Can be fatal. Kidney and liver damage can occur.
Fire Hazard
Behavior in Fire: Vapor is heavier than air and may travel considerable distance to a source of ignition and flash back.
Chemical Reactivity
Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
Safety Profile
Moderately toxic bj7 intraperitoneal route. Mldly toxic by ingestion and inhalation. An experimental teratogen. A common air contaminant. A very dangerous fire hazard when exposed to heat or flame. Explosive in the form of vapor when exposed to heat or flame. To fight fire, use foam, CO2, dry chemical. Incompatible with oxidzing materials. When heated to decomposition it emits acrid smoke and irritating fumes. Emitted from modern building materials (CENEAR 69,22,91). See also other xylene entries.
Purification Methods
o-Xylene (4.4Kg) is sulfonated by stirring for 4hours with 2.5L of conc H2SO4 at 95o. After cooling, and separating the unsulfonated material, the product is diluted with 3L of water and neutralised with 40% NaOH. On cooling, sodium o-xylene sulfonate separates and is recrystallised from half its weight of water. [A further crop of crystals is obtained by concentrating the mother liquor to one-third of its volume.] The salt is dissolved in the minimum amount of cold water, then mixed with the same amount of cold water, and with the same volume of conc H2SO4 and heated to 110o. o-Xylene is regenerated and steam distils. The distillate is saturated with NaCl, the organic layer is separated, dried and redistilled. [Beilstein 5 H 362, 5 I 179, 5 II 281, 5 III 807, 5 IV 917.]
o-Xylene Preparation Products And Raw materials
Raw materials
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Soham Chemical Industries | +91-7016081644 +91-7016081644 | Mumbai, India | 83 | 58 | Inquiry |
| Nyne Organics Pvt Ltd | +91-9920180386 +91-9920180386 | Mumbai, India | 53 | 58 | Inquiry |
| Choice Chemicals | +91-9895031268 +91-9895031268 | Kerela, India | 118 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Deepak Nitrite Limited | +91-2652765200 +91-9574004054 | Vadodara, India | 32 | 58 | Inquiry |
| Reliance Industries Limited | +91-2235555000 +91-2235555000 | Maharashtra, India | 15 | 58 | Inquiry |
| Haresh Kumar & Co. | 91-22-66312165 | Maharashtra, India | 42 | 58 | Inquiry |
| Deep Prabha Transchem | 91-22-24135966 | Maharashtra, India | 109 | 58 | Inquiry |
| Adarsh Chemicals | 91-44-26749591 | Tamil Nadu, India | 44 | 58 | Inquiry |
| Pon Pure Chem (P) Ltd. | 91-44-26161803 | Tamil Nadu, India | 58 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| Soham Chemical Industries | 58 |
| Nyne Organics Pvt Ltd | 58 |
| Choice Chemicals | 58 |
| JSK Chemicals | 58 |
| Deepak Nitrite Limited | 58 |
| Reliance Industries Limited | 58 |
| Haresh Kumar & Co. | 58 |
| Deep Prabha Transchem | 58 |
| Adarsh Chemicals | 58 |
| Pon Pure Chem (P) Ltd. | 58 |
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