Bis(2-ethylhexyl) phthalate
Bis(2-ethylhexyl) phthalate
CAS: 117-81-7;275818-89-8;40120-69-2;50885-87-5;607374-50-5;8033-53-2
Molecular Formula: C24H38O4
Bis(2-ethylhexyl) phthalate - Names and Identifiers
Bis(2-ethylhexyl) phthalate - Physico-chemical Properties
| Molecular Formula | C24H38O4 |
| Molar Mass | 390.56 |
| Density | 0.985 g/mL at 20 °C (lit.) |
| Melting Point | -50 °C |
| Boling Point | 386 °C (lit.) |
| Flash Point | 405°F |
| Water Solubility | Negligible |
| Solubility | Miscible with mineral oil and hexane (U.S. EPA, 1985) |
| Vapor Presure | 1.2 mm Hg ( 93 °C) |
| Vapor Density | >16 (vs air) |
| Appearance | Liquid |
| Color | APHA: ≤10 |
| Odor | Very slight, characteristic. |
| Exposure Limit | Potential occupational carcinogen. NIOSH REL: TWA 5, STEL 10,IDLH 5,000; OSHA PEL: TWA 5; ACGIH TLV: TWA 5 (adopted). |
| Merck | 14,2864 |
| BRN | 1890696 |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.488 |
| MDL | MFCD00009493 |
| Physical and Chemical Properties | Colorless transparent liquid with special odor. Melting Point -55 ℃, boiling point 386.9 ℃,222-230 ℃(0.53kPa), relative density 0.986(20/4 ℃), refractive index 1.4852, flash point 217 ℃, ignition point 241 ℃, viscosity 81.4mPa-s, vapor pressure (200 C) 176Pa. At 25 ° C, the solubility of the product in water is <0.01%, and the solubility of water in the product is 0.2%. Soluble in most organic solvents and hydrocarbons, slightly soluble in glycerol, ethylene glycol. It has good compatibility with most industrial resins. Partially compatible with cellulose acetate, polyvinyl acetate. |
| Use | The product is the most widely used plasticizer, in addition to cellulose acetate, polyvinyl acetate, and the vast majority of industrial use of synthetic resins and rubber have good compatibility. This product has good comprehensive performance, good mixing performance, high plasticizing efficiency, low volatility, good low temperature flexibility, water resistance, high electrical performance, good heat resistance and weather resistance. |
Bis(2-ethylhexyl) phthalate - Risk and Safety
| Risk Codes | R60 - May impair fertility R61 - May cause harm to the unborn child R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S16 - Keep away from sources of ignition. |
| UN IDs | UN 1230 3/PG 2 |
| WGK Germany | 1 |
| RTECS | TI0350000 |
| TSCA | Yes |
| HS Code | 29173400 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | Acute oral LD50 for guinea pigs 26 gm/kg, mice 30 gm/kg, rats 30,600 mg/kg, rabbits 34 gm/kg (quoted, RTECS, 1985). |
Bis(2-ethylhexyl) phthalate - Upstream Downstream Industry
Bis(2-ethylhexyl) phthalate - Nature
Open Data Verified Data
colorless transparent liquid with special odor. The relative density was 0.986. Melting Point -55 °c. The boiling point is 386.9 ° C, and the flash point is 217 ° C. Ignition point 241 °c. Refractive index 4852. Viscosity 81. 4MPa. s. Vapor pressure (200 C) 176Pa. Insoluble in water, soluble in most organic solvents and hydrocarbons. It has good compatibility with most industrial resins. Partially compatible with cellulose acetate, polyvinyl acetate.
Last Update：2024-01-02 23:10:35
Bis(2-ethylhexyl) phthalate - Preparation Method
Open Data Verified Data
by phthalic anhydride and 2 ethyl hexanol (isooctyl alcohol) in sulfuric acid or titanate, stannous oxide, aluminate and other non-acidic catalyst for esterification reaction, esterification solution after neutralization, washing, decolorization, pressure filtration to obtain the finished product.
Last Update：2022-01-01 10:44:19
Bis(2-ethylhexyl) phthalate - Introduction
This standard substance is mainly used for measuring instrument calibration, analytical method evaluation and quality control, as well as the content determination and residue detection of corresponding components in related fields such as food, hygiene, environment and agriculture. It can also be used for value traceability or as a standard liquid reserve solution. It is diluted step by step and configured into various standard solutions for work. 1. Sample Preparation This standard substance is made of pure dioctyl phthalate with accurate purity and fixed value as raw material, chromatographic methanol as solvent, and accurately configured by weight-volume method. Dioctyl phthalate, English name: Dioctyl phthalate in acetone,CAS number: 117-81-7 2. traceability and fixed value method This standard substance takes the configuration value as the standard value, and uses high performance liquid chromatography-diode array detector (HPLC -DAD) to compare this batch of standard substances and quality control control samples, and verify the preparation value. By using preparation methods, measurement methods and measuring instruments that meet the requirements of metrological characteristics, the traceability of the value of the standard substance is guaranteed. 3. characteristic value and uncertainty (see certificate for details) Number Name Standard Value (ug/mL) Relative Expansion Uncertainty (%)(k = 2)BW10386 The uncertainty of the 5002 standard value of dioctyl phthalate in methanol is mainly synthesized by uncertainty components such as raw material purity, weighing, constant volume, uniformity and stability. 4. uniformity test and stability inspection According to the JJF1343-2012 [General Principles and Statistical Principles of Standard Substance Setting], random sampling of sub-packed samples is carried out, uniformity test of solution concentration is carried out, and stability inspection is carried out. The results show that the standard material has good uniformity and stability. The standard substance is valid for 18 months from the date of setting the value. The development unit will continue to monitor the stability of the standard substance. If the value changes are found during the validity period, the user will be notified in time. 5. packaging, transportation and storage, use and precautions 1. Packaging: This standard substance is packed in borosilicate glass ampoules, about 1.2 mL/branch. When removing or diluting, the pipette quantity shall prevail. 2. Transportation and storage: normal temperature transportation, transportation should avoid extrusion and collision; Storage under refrigerated (2-8)℃ and protected from light. 3. Use: Balance at room temperature (20±3 ℃) before unsealing, and shake well. Once the ampoule is opened, it should be used immediately and cannot be used as a standard substance after being fused again.
Last Update：2022-10-16 17:12:25
Bis(2-ethylhexyl) phthalate - Use
Open Data Verified Data
due to the compatibility, flexibility, low volatility and extraction resistance and other aspects of the performance of the overall good, is considered to be a general plasticizer for PVC industry standard, and used as a reference for comparison with other plasticizers. Is an ideal main plasticizer, extensive
Applied to the processing of polyvinyl chloride, cellulose resin. It can also be used as a softening agent for synthetic rubber.
Last Update：2022-01-01 10:44:18
Bis(2-ethylhexyl) phthalate - Safety
Open Data Verified Data
- This product is low toxicity, animal oral LD50> 30000mg/kg. France, Britain, Japan, Germany and other countries allow this product for contact with food (except fatty food) plastic products, the United States allows this product for food packaging with cellophane, paint, adhesive, rubber products. There was a debate about whether DOP can cause cancer in the Eighties of the 20th century. Although there is no clear evidence to prove it, all countries are looking for a substitute for DOP.
- the use of iron drum packaging, specifications 200kg/barrel. Storage should be cool and ventilated, to prevent water leakage into the barrel, transport in accordance with the provisions of the general provisions of dangerous goods.
Last Update：2022-01-01 10:44:20
Bis(2-ethylhexyl) phthalate - Reference Information
| freezing point | |
| Henry's Law Constant | (x 10-5 atm?m3/mol):1.1 at 25 °C (calculated, Howard, 1989) |
| LogP | 7.5 at 20℃ |
| (IARC) carcinogen classification | 2B (Vol. Sup 7, 77, 101) 2013 |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | Used as the main plasticizer of plastics, widely used in polyvinyl chloride products It can be used as a substitute for DOP, especially suitable for plasticized paste, Good viscosity stability Used as gas chromatography fixative, plasticizer Used as cold-resistant plasticizer This product is the most widely used plasticizer, in addition to cellulose acetate and polyethylene acetate, it has good compatibility with synthetic resins and rubbers used in most industries. This product has good comprehensive performance, good mixing performance, high plasticizing efficiency, low volatility, good low temperature flexibility, water extraction resistance, high electrical performance, good heat resistance and weather resistance. As a main plasticizer, this product is widely used in the processing of various soft PVC products, such as films, sheets, artificial leather, cable materials and molded products. The product is non-toxic and can be used for packaging materials in contact with food, but it is not suitable for fatty food packaging materials because it is easy to be extracted from fat. It can also be used for nitrocellulose paint to make the paint film have elastic high tensile strength. In a variety of synthetic rubbers, this product also has a good softening effect. In addition, DOP is also used as a condensing agent, antiwear agent, organic solvent, and gas chromatography fixative. gas chromatography stationary solution (the highest service temperature is 150 ℃, the solvent is methanol main and dichloromethane) selectively retains and separates aromatic compounds, unsaturated compounds, various oxides (alcohols, aldehydes, ketones and esters, etc.) and plasticizers. |
| production method | the amount of plasticizer is large and there are many varieties. At present, the development trend of plasticizer production technology is, on the one hand, the continuous large-scale production of the main plasticizer, on the other hand, the multi-variety, small-batch intermittent production of special plasticizers. The consumption of phthalate plasticizers accounts for about 80% of the total amount of plasticizers, and the production volume is very large, so there is a continuous large-scale production centered on dioctyl phthalate. Phthalic acid esters are industrially prepared by esterification of phthalic anhydride and corresponding alcohols in the presence of acidic catalysts such as sulfuric acid and p-toluenesulfonic acid. The amount of acidic catalyst is generally 0.2-0.5% based on phthalic anhydride. The esterification reaction is carried out by phthalic anhydride and 2-ethylhexanol (isooctanol) under the catalysis of sulfuric acid or titanate, stannous oxide, aluminate and other non-acidic catalysts. The esterification liquid is neutralized, washed with water, and The finished product is obtained by alcohol removal, decolorization and pressure filtration. Raw material consumption quota: phthalic anhydride 383kg/t, 2-ethylhexanol (95%)671kg/t, sulfuric acid 6kg/t, soda ash 10kg/t. |
| category | pesticide |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 30000 mg/kg; Oral-mouse LD50: 1500 mg/kg |
| stimulation data | skin-rabbit 500 mg/24 hours mild; Eye-rabbit 500 mg mild |
| Explosive hazard characteristics | It can be exploded when mixed with air; it reacts violently with oxidant |
| flammability hazard characteristics | combustible; fire scene releases spicy and stimulating smoke |
| storage and transportation characteristics | warehouse low temperature, ventilation, drying |
| fire extinguishing agent | water, carbon dioxide, dry powder, sand |
| occupational standard | TWA 5 mg/m3 STEL 10 mg/m3 |
| auto-ignition temperature | 734 °F |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentration | 5,000 mg/m3 |
Last Update：2024-04-10 22:29:15
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