Diethylene glycol CAS 111-46-6
Introduction：Basic information about Diethylene glycol CAS 111-46-6, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Diethylene glycol Basic information
| Product Name: | Diethylene glycol |
| Synonyms: | 3-OxapentaMethylene-1,5-diol;NSC 36391;2,2'-OxydiethanolBis(2-hydroxyethyl) Ether;Di-ethylene glycol,Ethylene diglycol;Diethylene glyco;Diethylene glycol, Bis(2-hydroxyethyl) ether;Diethylene glycol, Standard for GC,>=99.5%(GC);Diethyleneglyc |
| CAS: | 111-46-6 |
| MF: | C4H10O3 |
| MW: | 106.12 |
| EINECS: | 203-872-2 |
| Product Categories: | Ethylene Glycols;Ethylene Glycols & Monofunctional Ethylene Glycols;Industrial/Fine Chemicals;Miscellaneous Reagents;peg;111-46-6 |
| Mol File: | 111-46-6.mol |
Diethylene glycol Chemical Properties
| Melting point | −10 °C(lit.) |
| Boiling point | 245 °C(lit.) |
| density | 1.118 g/mL at 25 °C(lit.) |
| vapor density | 2.14 (vs air) |
| vapor pressure | 0.01 mm Hg ( 20 °C) |
| refractive index | n |
| Fp | 143 °C |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | H2O: 50 mg/mL at 20 °C, clear, colorless |
| pka | 14.03±0.10(Predicted) |
| form | Oily Liquid |
| color | colorless |
| Odor | Practically odorless. |
| PH | 5.5-7.0 (25℃, 50mg/mL in H2O) |
| Relative polarity | 0.713 |
| explosive limit | 2-12.3% |
| Water Solubility | SOLUBLE |
| FreezingPoint | -10.45℃ |
| λmax | λ: 260 nm Amax: ≤0.02 λ: 280 nm Amax: ≤0.01 |
| Sensitive | Hygroscopic |
| Merck | 14,3119 |
| BRN | 969209 |
| Dielectric constant | 31.7（20℃） |
| Stability: | Hygroscopic |
| Cosmetics Ingredients Functions | SOLVENT FRAGRANCE VISCOSITY CONTROLLING PERFUMING |
| InChI | 1S/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2 |
| InChIKey | MTHSVFCYNBDYFN-UHFFFAOYSA-N |
| SMILES | OCCOCCO |
| LogP | -1.98 at 20℃ |
| Surface tension | 45.55mN/m at 293.15K |
| CAS DataBase Reference | 111-46-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Ethanol, 2,2'-oxybis-(111-46-6) |
| EPA Substance Registry System | Diethylene glycol (111-46-6) |
Safety Information
| Hazard Codes | Xn,T,Xi |
| Risk Statements | 22 |
| Safety Statements | 46 |
| WGK Germany | 1 |
| RTECS | ID5950000 |
| F | 10 |
| Autoignition Temperature | 442 °F |
| Hazard Note | Toxic/Irritant |
| TSCA | TSCA listed |
| HS Code | 29094100 |
| Storage Class | 10 - Combustible liquids |
| Hazard Classifications | Acute Tox. 4 Oral |
| Hazardous Substances Data | 111-46-6(Hazardous Substances Data) |
| Toxicity | LD50 in rats, guinea pigs (g/kg): 20.76, 13.21 orally (Smyth) |
| Chemical Properties | Diethylene glycol is a clear colorless, odorless and stable oily liquid. It is also slightly viscous, noncorrosive and nonvolatile. Because of its ether and alcohol group, diethylene glycol exhibits chemical properties characteristic of both primary alcohols and ethers. Its boiling point is considerably higher than that of ethylene glycol, and its solvent is greater. Diethylene glycol is miscible with water, ethers, lower aliphatic alcohols, aldehydes and ketones and is partially soluble in benzene, carbon tetrachloride, monobenzene, orthodichlorobenzene and toluene. It dissolves many dyes, resins, oils, nitrocellulose and many organic substances. Because of its solvent power, low volatility and hygroscopicity, it is used in textile lubricants, cutting oils, dry cleaning soap, printing inks, steam-set inks, and nongrain wood stains. In the textile industry diethylene glycol is used as a conditioning agent for wool, rayon, and cotton. As a solvent for dyes it makes a valuable assistant in dyeing and printing. The high hygroscopicity of diethylene glycol makes it an efficient softening agent for tobacco, paper, synthetic sponges, glues and casein. Diethylene glycol is especially useful in the dehydration of natural gas. A mixture of diethylene glycol and monoethanolamine will remove moisture, hydrogen sulfide and carbon dioxide from natural gas. diethylene glycol structure |
| Uses | Diethylene glycol (DEG) is a commonly used solvent andingredient in numerous commercial products. It is used asa dehydrating agent for natural gas processing; as a lubricatingand finishing agent for textiles; a constituent in brake fluids,lubricants, antifreeze formulations, wallpaper strippers and inartificial fog solutions; a solvent for printing inks and textiledyes; and is used as an intermediate in the production of someresins, triethylene glycol, surfactants, and diethylene glycolesters and ethers. |
| Application | Diethylene glycol has many industrial uses. It is a component of antifreeze, brake fluids, cosmetics, inks, and drying agents, and it is used as a plasticizer. In antifreeze solution for sprinkler systems, water seals for gas tanks, etc. (water with 40% diethylene glycol freezes at -18°; with 50% at -28°); as lubricating and finishing agent for wool, worsted, cotton, rayon, and silk; as solvent for vat dyes; in composition corks, glues, gelatin, casein, and pastes to prevent drying out. |
| Definition | ChEBI: Diethylene glycol is a hydroxyether. |
| Production Methods | Diethylene glycol is produced commercially as a by-productof ethylene glycol production. It can also be produceddirectly by reaction between ethylene glycol and ethyleneoxide . |
| General Description | Diethylene glycol appears as a colorless liquid. Denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals. |
| Air & Water Reactions | Slightly soluble in water. |
| Reactivity Profile | Diethylene glycol is incompatible with strong oxidizing agents. Diethylene glycol is also incompatible with strong bases. Diethylene glycol can react with sulfuric acid and other dehydrating agents, nitric acid, oxygen, hydrogen peroxide, perchloric acid and strong acids. Mixtures with sodium hydroxide decompose exothermically when heated to 446° F. |
| Health Hazard | Ingestion of large amounts may cause degeneration of kidney and liver and cause death. Liquid may cause slight skin irritation. |
| Fire Hazard | Diethylene glycol is combustible. |
| Flammability and Explosibility | Non flammable |
| Safety Profile | Moderately toxic to humans by ingestion. Poison experimentally by inhalation. Moderately toxic by ingestion and intravenous routes. Questionable carcinogen with experimental carcinogenic,tumorigenic, and teratogenic data. An eye and human skin irritant. Combustible when exposed to heat or flame; can react with oxidning materials. To fight fire, use alcohol foam, water, Con, dry chemical. Mixtures with sodium hydroxide decompose exothermically when heated to 230℃ and release explosive hydrogen gas. When heated to decomposition it emits acrid smoke and irritating fumes. See also GLYCOL ETHERS. |
| Toxicology | The toxicity of diethylene glycol is similar to ethylene glycol and clearly is a CNS depressant. It has a low inhalation hazard because of its low vapor pressure; however, inhalation of the mist or aerosol is to be avoided. Workplace levels for vapors and aerosols cannot exceed 50 ppm. In case of accidental release of diethylene glycol, use of a full-face positive air pressure respirator is recommended. Even though the toxicokinetics in humans is not completely understood, its toxic nature is confirmed by animal studies. Several human cases were reported in the medical literature. Several children in Haiti died in 1995 and 1996 following the consumption of medication containing diethylene glycol. Similar other cases in children were reported in other countries as well. A 24-year-old man developed encephalopathy and rapidly became quadriplegic following ingestion of a solution containing diethylene glycol . Thus, the toxicity of diethylene glycol is well established. |
| Carcinogenicity | Weil et al. , in their longtermstudies on rats of three different age levels, found onlyone bladder tumor in those fed diets that contained 4%diethylene glycol. This tumor was in a rat that also hadbladder stones . To clarify the question of the cause ofthe tumor, Weil et al. implanted calcium oxalatestones or glass beads into the bladders of rats. They found thatbladder tumors never developed without the presence of aforeign body in the bladder. This led to the conclusion thatdiethylene glycol essentially free of ethylene glycol is not aprimary carcinogen. |
| Environmental Fate | Diethylene glycol is metabolized by alcohol dehydrogenase totoxic metabolites predominantly, HEAA and DGA. DEG cancause an anion gap metabolic acidosis, cortical necrosisresulting in permanent renal failure and neurotoxicity. DGA,not HEAA, was recently identified as being the primary nephrotoxic agent causing proximal tubule cell death. Theneurotoxicity seen after DEG poisoning is only recentlydescribed. The neurotoxicity is delayed and has cranial andperipheral demyelinating sensorimotor polyneuropathypattern. The exact mechanism of the neurotoxicity remainsunclear and in the cases described in the literature, it appears tobe prolonged but does show evidence of reversibility. |
| Toxicity evaluation | Diethylene glycol is miscible with water, has a low vaporpressure of 0.008 hPa at 25°C, a very low log Kow of 1.98, and also a low Koc. Consequently, water is the most relevant environmentalcompartment. Calculation according to Mackay,Level I indicates the following distribution among environmentalcompartments: air 0.75%, water 99.25%, soil 0%,sediment 0%; confirming the relevance of the pelagic systems. The substance is readily biodegradable and the very lowlog Kow suggests a low potential for bioaccumulation. |
| Toxics Screening Level | The Initial Threshold Screening Level (ITSL) for diethylene glycol (DEG) is 1,600 μg/m3with annual averaging time (AT). |
Diethylene glycol Preparation Products And Raw materials
| Raw materials | ETHYLENE OXIDE |
| Preparation Products | Toluene-->Benzene-->Xylene-->Ethylene glycol-->Morpholine-->Casein-->4-Benzylpiperidine-->4-Methylmorpholine-->2-Chloro-4-dodecylphenol-->Unsaturated polyester resin-->4-(4-Methoxyphenyl)butyric acid-->6-Phenylhexanoic acid-->2,6-Dichloroindophenol sodium salt-->4-(2-THIENYL)BUTYRIC ACID-->1-PYRENEBUTYRIC ACID-->1-PYRENEDECANOIC ACID-->2,3-DIHYDROXYQUINOXALINE-6-CARBOXYLIC ACID-->Diethylene Glycol Monoethyl Ether-->Ursodeoxycholic acid-->4-Amino-2,6-dichlorophenol-->polyurethae finishes PUC series-->defoaming agent OTD-->BT modified acrylic resin binder series-->CSF series modified sacrylic binder-->AC anti-fungus leather finishing agent-->Diethylene glycol diethyl ether-->weather-proof acrylic binder series-->21-Iodo-16-methylpregna-1,4,9(11)-trien-17-ol-3,20-dione-->N-Ethylmorpholine-->1,3-DIFLUORO-2-PROPANOL-->thickening agent PAS-->16-Methylpregna-1,4,9(11)-trien-17-ol-3,20-dione-->1-CHLORO-3-FLUOROISOPROPANOL-->2-(2-HEXYLOXYETHOXY)ETHANOL-->Disperse Yellow 126-->2,2'-OXYDIACETYL CHLORIDE-->polyurethane water-based emulsion finishes PU-II series-->diamfenetide-->Diethylene Glycol Dibutyl Ether-->Diethylene glycol dibenzoate |
