Di-n-octyl o-phthalate
Dioctyl phthalate
CAS: 117-84-0;8031-29-6
Molecular Formula: C24H38O4
Di-n-octyl o-phthalate - Names and Identifiers
| Name | Dioctyl phthalate |
| Synonyms | DOP Dinopol NOP celluflexdop Celluflex dop ai3-15071(usda) UNII-8X3RJ0527W Dioctyl phthalate n-Octyl phthalate DI-N-OCTYL PHTHALATE Di-n-octyl o-phthalate RCRA waste number U107 Phthalic acid, dioctyl ester Dioctyl o-benzenedicarboxylate Dioctyl 1,2-benzenedicarboxylate 1,2-Benzenedicarbonicacid,dioctylester benzenedicarboxylicaciddi-n-octylester 1,2-Benzenedicarboxylicacid,dioctylester o-Benzenedicarboxylic acid, dioctyl ester 1,2-Benzenedicarbonic acid, dioctyl ester Benzenedicarboxylic acid di-n-octyl ester 1,2-Benzenedicarboxylic acid, dioctyl ester 1,2-Benzenedicarboxylic acid, 1,2-dioctyl ester |
| CAS | 117-84-0 8031-29-6 |
| EINECS | 204-214-7 |
| InChI | InChI=1/C24H38O4/c1-3-5-7-9-11-15-19-27-23(25)21-17-13-14-18-22(21)24(26)28-20-16-12-10-8-6-4-2/h13-14,17-18H,3-12,15-16,19-20H2,1-2H3 |
Di-n-octyl o-phthalate - Physico-chemical Properties
| Molecular Formula | C24H38O4 |
| Molar Mass | 390.56 |
| Density | 0.980g/mLat 20°C(lit.) |
| Melting Point | -25℃ |
| Boling Point | 380 °C |
| Flash Point | 219 °C |
| Water Solubility | Insoluble in water. |
| Solubility | Degrade most organic solvents and hydrocarbons, slightly degrade glycerol and cholesterol. |
| Vapor Presure | 5(x 10-8 mmHg) at 82 °C, 500 at 132 °C (Gross and Colony, 1973) |
| Appearance | Bright yellow oily liquid |
| Specific Gravity | 0.98 |
| Color | Colourless |
| Merck | 14,2864 |
| BRN | 1915994 |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.485 |
| MDL | MFCD00015292 |
| Physical and Chemical Properties | Colorless oily transparent liquid with special odor. The ignition point was 241 ° C., the viscosity was 81.4mPa · s, and the vapor pressure (200 ° C.) was 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. Boiling Point: 386.9 ℃ Melting Point:-55 ℃ density: 0.986 refractive index n20/D:1.4852 flash point: 217 ℃ |
| Use | Gas chromatography stationary liquid, selective retention and separation of aromatic compounds, unsaturated compounds and various oxygen containing compounds (alcohols, aldehydes, ketones, esters, etc.). Solvent. Plasticizers. |
Di-n-octyl o-phthalate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R60 - May impair fertility R61 - May cause harm to the unborn child |
| Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | 2810 |
| WGK Germany | 2 |
| RTECS | TI1925000 |
| TSCA | Yes |
| HS Code | 29173200 |
| Toxicity | Acute oral LD50 for mice 6,513 mg/kg (quoted, RTECS, 1985):rats 13,000 mg/kg (Dogra et al., 1989):mice 1,250-1,954 mg/kg (Etnier, 1987). |
Di-n-octyl o-phthalate - Reference
| Reference Show more | 1. [IF=7.963] Ming Li et al."Sensitive and selective determination of butyl benzyl phthalate from environmental samples using an enzyme immunoassay."Sci Total Environ. 2019 Oct;687:849 |
Di-n-octyl o-phthalate - Introduction
There is a special smell. The ignition point is 241 ℃, the viscosity is 81.4mPa s, and the vapor pressure (200 ℃) is 176Pa. The solubility of the product in water is less than 0.01% at 25 ℃, and the solubility of water in the product is 0.2%. Soluble in most organic solvents and hydrocarbons, slightly soluble in glycerol and ethylene glycol. It has good compatibility with most industrial resins. Partially compatible with cellulose acetate; polyvinyl acetate.
Last Update：2022-10-16 17:12:25
Di-n-octyl o-phthalate - Reference Information
| Henry's Law Constant | 1.41(x 10-12 atm?m3/mol) at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| overview | dioctyl phthalate is a colorless or light yellow transparent liquid with special smell, boiling point 386 ℃, relative density 0.980~0.983(20/4 ℃). Insoluble in water, soluble in ethanol, ether and other organic solvents. It is prepared by esterification of phthalic anhydride and 2-ethylhexanol. It is one of the most widely used plasticizers in plastic processing. Good comprehensive performance, high growth efficiency, low volatility, UV resistance, cold resistance, so that the product's flexibility and electrical properties are improved, is an ideal main plasticizer. The toxicity is small, the half lethal dose is greater than 30g/kg body weight. The French Cancer Institute fed its 0.05% content of feed to four generations of rats, proving that it was non-toxic and non-carcinogenic. However, whether large doses have carcinogenic effects remains to be further studied. Britain, France, Japan, the Netherlands, Germany and other countries allow it to be used in plastic products that contact food (except fatty foods), and the U.S. Food and Drug Administration allows it to be used in cellophane, coatings, adhesives and rubber products for food packaging. It can also be used as a standard sample in chromatographic quantitative analysis. |
| use | this product can be compatible with polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polyvinyl butyral, cellulose acetate butyrate, cellulose nitrate, ethyl cellulose, polymethyl methacrylate, polystyrene and other resins, but not compatible with cellulose acetate and polyvinyl acetate. The plasticizing efficiency of this product is the same as DOP, but the cold resistance, weather resistance, volatility resistance and stability to plasticized paste viscosity are better than DOP, and the electrical insulation is slightly worse than DOP. Due to the high price, the application is not widely used. This product is a non-toxic plasticizer and can be used to make food packaging materials. This product is also used as a solvent and gas chromatography stationary liquid. 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 one of the main plasticizers of polyvinyl chloride and its copolymers; plasticizing nitro fiber, polystyrene, styrene butadiene rubber and resin gas chromatography stationary liquid, selective retention and separation of aromatic compounds, Unsaturated compounds and various oxygenates (alcohols, aldehydes, ketones, esters, etc.). Solvent. Plasticizer. |
| Production method | is obtained by esterification of phthalic anhydride and n-octanol. Kg/ton phthalic anhydride 390 n-octanol 690 |
| category | flammable liquid |
| toxicity classification | low toxicity |
| acute toxicity | oral-rat LD50: 47000 mg/kg; Oral-mouse LD50: 6513 mg/kg |
| stimulation data | skin-rabbit 500 mg/24 hours mild; Eye-rabbit 500 mg/24 hours mild |
| explosive hazard characteristics | reacts with oxidant |
| flammability hazard characteristics | it is more flammable in case of open flame, high temperature and strong oxidant; Combustion emission stimulates smoke |
| storage and transportation characteristics | complete packaging, light and light; warehouse ventilation, away from open flames, high temperature, separate storage from oxidant |
| fire extinguishing agent | foam, carbon dioxide, dry powder |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:06
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