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Triethanolamine

General description Dermatology drug for external use Early strength agent Standard for Maximum Allowable concentration as food additives and maximal allowable residue Chemical properties Uses Production method Category Toxicity grading Acute Toxicity Stimulation Data Flammability and Hazardous characteristics Storage and transport characteristics Fire extinguishing agent Professional Standard

CAS No.102-71-6
Chemical Name:Triethanolamine
Synonyms:TEA;Trola;Alkano;TEA AR;Mobisyl;Daltogen;TROLAMINE;Tholamine;Sting-Kill;Sterolamide
CBNumber:CB9852620
Molecular Formula:C6H15NO3
Formula Weight:149.19
MOL File:102-71-6.mol
Triethanolamine Property
mp : 21 °C
bp : 360 °C
density : 1.1245
vapor density : 5.14 (vs air)
vapor pressure : 0.01 mm Hg ( 20 °C)
refractive index : n20/D 1.485(lit.)
Fp : 365 °F
storage temp. : Store at RT.
solubility : H2O: 1 M, clear, colorless
Water Solubility : soluble
Sensitive : Air Sensitive & Hygroscopic
Merck : 14,9665
BRN : 1699263
CAS DataBase Reference: 102-71-6(CAS DataBase Reference)
NIST Chemistry Reference: Triethanolamine(102-71-6)
EPA Substance Registry System: Ethanol, 2,2',2''-nitrilotris- (102-71-6)
Safety
Hazard Codes : Xi
Risk Statements : 36/37/38-36
Safety Statements : 26-39-36
WGK Germany : 1
RTECS : KL9275000
F : 3-10-23
HS Code : 29221310
HS Code : 29321900
Hazardous Substances Data: 102-71-6(Hazardous Substances Data)

Triethanolamine Chemical Properties,Usage,Production

General description
Triethanolamine appears as colorless oily liquid with the smell of ammonia. It is easy to absorb water and will turn into brown color when being exposed to the air and the light. At low temperature, it will become colorless or pale yellow cubic crystal. It has a melting point of 21.2 ℃, boiling point of 335.4 ℃, 277 ℃ (19.950kPa), 206 ~ 207 ℃ (1.995kPa), relative density of 1.1242, the refractive index of 1.4852. Its Kb is 2.5 × 10-10 with the pH of its 1.0 mol / L aqueous solution being 10.5. It is miscible with water, methanol and acetone. It is soluble in benzene, ether, slightly soluble in carbon tetrachloride, n-heptane. It is a kind of strong alkaline, combining with protons, can be used for condensation reaction.
In analytical chemistry, triethanolamine can be used as the stationary phase for the gas liquid chromatography (the maximum temperature is 75 ℃ with the solvent being methanol and ethanol), used for the separation of pyridine and methyl substitutes. In the complexometric titration and other analysis, it can be used as a masking agent for interfering ions. For example, in a solution of pH = 10, when we apply EDTA for titration of magnesium, zinc, cadmium, calcium, nickel and other ions, the reagent can be used for masking titanium, aluminum, iron, tin and some other ions. In addition, it can also be dubbed with hydrochloric acid into a buffer solution of a certain pH value.
Triethanolamine is mainly used in the manufacture of surfactants, liquid detergents, cosmetics and so on. It is one of the components of cutting fluid and antifreeze fluid. During the nitrile rubber polymerization, it can be used as an activator, being the vulcanization activator of natural rubber and synthetic rubber. It can also be used as the emulsifiers of oil, wax and pesticides, the moisturizer and stabilizer of cosmetics, textile softeners as well as the anti-corrosion additives of lubricants. Triethanolamine is also capable of absorbing carbon dioxide and hydrogen sulfide and other gases. During the cleaning of the coke oven gas and other industrial gases, it can be used for removal of acid gases. It is also a commonly used masking agent in the EDTA titration assay.
China provided the allowable concentration in the air is 3 μg / g.
Dermatology drug for external use
At present, the dermatology of many hospitals commonly used the topical drug, Biafine for the treatment of burns and skin trauma with the main ingredient being triethanolamine. Triethanolamine can play a dual effect of cleaning and drainage through the principle of penetration and capillary action, being able to further increase the skin blood flow velocity and helping the discharge of exudate. It can also change the ratio between interleukin 1 and interleukin VI, stimulating the proliferation of fibroblast and increasing the collagen synthesis. It is clinically used for the treatment of secondary erythema caused by the radiation therapy as well as degree I, degree II burns and skin trauma that has not yet infected.
(1) radiation-induced skin damage: Recommended: application of 2 to 3 times with each administration within the same interval; gently massage to make the skin absorb it.
(2) Ⅱ-degree burns and other skin trauma: After cleaning the wounds, apply a thick layer of drug on the wound surface; repeat the application to make trauma be treated with a sufficient amount of drugs. If necessary, apply a moist wet dressing for wrapping. Do not use dry absorbent dressing.
(3) Ⅰ degree burns: Apply a thick layer until the skin doesn’t absorb the drug anymore and gently massage. Repeat 2 to 4 times a day.
Early strength agent
Triethanolamine is currently a commonly used early strength agent used in China's cement industry with the effect of early strength agent being accelerating hydration process of the cement in the presence of liquid phase in the concrete to improve the early strength. Although triethanolamine does not change the hydration product of cement, it can enhance the activity of the colloid generated through the hydration of cement, producing pressure to surrounding regions, blocking the capillary channel, exacerbating the effect of the adsorption, wetting and dispersion of particles and so on, promoting the reaction of the formation of hydrated calcium sulfoaluminate between the C3A and gypsum. This can improve the density of concrete, anti-permeability and antifreeze property, playing the role of early strength and enhancing the strength.
When used in combination with inorganic salts, it can play a catalytic role due to the hydration of cement itself and the reaction between inorganic salts and cement, so that the effect of early strength is particularly significant in the case.
Standard for Maximum Allowable concentration as food additives and maximal allowable residue
Name    Food allowed for use it as additives    Function of additives    Maximal allowable amount(g/kg)    Maximal allowable residue(g/kg)
Triethanolamine    Food    Processing aid for food industry    /    It should be generally removed before the final product except for food for which residue limit has been provided
Chemical properties
At room temperature, it appears as colorless transparent viscous liquid with hygroscopicity and ammonia smell. It is alkaline, being irritating. It has a melting point of 21.2 °C, the boiling point of 360 °C, a flash point of 193 ° C, the relative density (d420) 1.1242 and refractive index (nD20) of 1.4852. It is miscible with water, ethanol and acetone, slightly soluble in ether, benzene and carbon tetrachloride.
Uses
(1) GB 2760-96 provides it as allowable food processing aids with GMP as limit.
(2) It can be used as the cleaning liquid for the removal of carbon dioxide and hydrogen sulfide in the gas. Esters generated from the reaction between triethanolamine and higher fatty acids are widely used as detergents, emulsifiers, wetting agents and lubricants as well as for the preparation of cosmetic balsam. Triethanolamine can also be used as preservatives and waterproofing agents, analysis reagents and solvents. In the nitrile rubber polymerization, it is used as an activator. It can also be used as the emulsifier, stabilizer, textile softer of oil and wax. It is one of the components of oiling agent of synthetic fiber.
(3) It can be used as the additives in the nitrile rubber polymerization, concrete accelerator, oil emulsifier as well as used for non-cyanide plating
(4) It can be used as the stationary phase of gas chromatography (the maximum applied temperature is 75 ℃; the solvent is methanol and ethanol); It can be used for separation and analysis of oxygen, nitrogen compounds and water-containing samples. It can be used as complexing agent; as metal masking agent; for titration of platinum and palladium; for colorimetric determination of manganese; for determination of tin, antimony and manganese; used for absorption of carbon dioxide and carbon disulfide and other alkaline gases; used as emulsifier, solvent and corrosion inhibitors.
Production method
Feed the ethylene oxide and ammonia water are into the reactor; conduct the condensation reaction under a reaction temperature of 30-40 °C and a reaction pressure of 70.9-304 kPa to generate a mixture solution of mono-, di- and triethanolamine; after undergoing dehydration and concentration at 90-120 °Cand then send to three vacuum distillation tower for vacuum distillation; capture different fractions according to different boiling points, you can get over 99% purity of the finished product of ethanolamine, diethanolamine and triethanolamine. During the course of the reaction, if increase the proportion of ethylene oxide, the generation ratio of di- and tri-ethanolamine will increase so we can get higher di- and tri-ethanolamine yield.
It is manufactured through the condensation reaction between ethylene oxide and ammonia under 30 ~ 40 °C and the pressure 71 ~ 304 kPa, in which the molar concentration of ethylene oxide and ammonia ratio is about 2.0. After the reaction, perform vacuum distillation through the distillation column, cut off the fractions of about 360 °C.
Category
Flammable liquids
Toxicity grading
Low toxicity
Acute Toxicity
Oral - Rat LD50: 8000 mg / kg; Oral - mouse LD50: 5846 mg / kg
Stimulation Data
Skin - Rabbit 560 mg / 24 Hours Mild; Eye - Rabbit 20 mg Severe
Flammability and Hazardous characteristics
it is flammable in case of fire, high temperature and strong oxidant with combustion releasing toxic smoke of nitrogen oxides.
Storage and transport characteristics
ensure intact packaging; carry out light loading and unloading; warehouse: being ventilated and keep away from open flame and high temperature. Store it separately from acid, copper and aluminum.
Fire extinguishing agent
foam, dry powder, carbon dioxide, sand
Professional Standard
TWA 5 mg / m3; STEL 10 mg / m3
Chemical Properties
Clear, amber viscous liquid
Usage
Triethanolamine is used primarily as a surfactant, reducing the surface tension between two media. It is also used as a general emulsifier for preparations, such as ones involving drug penetration ass ays.
General Description
Oily liquid with a mild ammonia odor. Denser than water. Freezing point is 71°F.
Air & Water Reactions
Water soluble.
Reactivity Profile
Triethanolamine is an aminoalcohol. Neutralize acids to form salts plus water in exothermic reactions. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated in combination with strong reducing agents, such as hydrides. Reacts violently with strong oxidants. [Handling Chemicals Safely 1980. p. 928].
Health Hazard
Liquid may irritate eyes and skin.
Fire Hazard
Special Hazards of Combustion Products: Poisonous gases, such as NOx, may be produced
Triethanolamine Preparation Products And Raw materials
Raw materials
Ethanolamine Ammonium hydroxide Nitrogen Crystal Violet Nonylphenol ETHYLENE OXIDE Alkyl alcohol 2,2'-Iminodiethanol Propylene oxide Ammonia
Preparation Products
Emulsifier FM softener 101 water proofing agent 703 amidoaminosurfactans ureaformaldelyde resin UF antistatic Agent P 3-Chloropyrazine-2-carbonitrile alcohol polyoxyethylene ether phosphoric monoester ethanolamine lauryl polyoxyethylene ether triethanol amine salt dodecyl phenyl ammonium sulfate cationic fatliquor agent Z-2 LY 171883 2-[bis(2-hydroxyethyl)amino]ethyl stearate Water treatment agent POE TRIETHANOLAMINE BORATE Cutting liquor,synthetic hydrogen peroxide stabilizer C-75 ribonucleic acid for injection antimony pentoxide sol polyurethae finishes PUC series antistatic Agent TM Antifoaming agent DEF 1,4-BIS(TRICHLOROMETHYL)BENZENE NS-01 silicone modified polyurethane water proof an dluster agent tri-isopropanlamiue polyoxypropyleal polyoxy-ethylene ether Spining lubricant agent nonylphenyl polyoxyethylene ether sulfate triethanolamine Antifreeze Sulfonated oil DAH o-Acetoacetaniside 1227 amidoamino acid Triethyl oleic soap Imazethapyr Trimethylolmelamine Resin softener D3 TRIETHANOLAMINE BORATE synthetic tanning anent PA METHYL 7-AMINOTHIENO[2,3-B]PYRAZINE-6-CARBOXYLATE
Triethanolamine Suppliers      Global( 333)Suppliers     
SupplierTelFaxEmailCountryProdListAdvantage
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333021-50323701sale@aladdin-e.comCHINA 24325 65
Shanghai Macklin Biochemical Co.,Ltd. 021-51821711021-51821727sales@macklin.cnCHINA 9961 55
Codow Chemical Co.,Ltd. +86-20-38056109 / 3892 1903+86-20-6261 9665sales@hwhg.com.cnCHINA 18472 55
Sinopharm Chemical Reagent Co,Ltd. 86-21-6321012386-21-63290778 86-21-63218885sj_scrc@sinopharm.comCHINA 10005 79
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833+86-10-82849933jkinfo@jkchemical.com;market6@jkchemical.comCHINA 96843 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing)+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing)sh@meryer.comCHINA 40407 62
future industrial shanghai co., ltd 021-61552785,400-0066-400021-55660885sales@jonln.comCHINA 2048 65
Alfa Aesar 400-610-6006; 021-67582000021-67582001/03/05saleschina@alfa-asia.comCHINA 30332 84
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、6027582086 (10) 60270825dtftchem@sina.comCHINA 3443 62
Energy Chemical 021-58432009 / 400-005-6266021-58436166-800info@energy-chemical.comCHINA 44196 61
 
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2,2',2-Nitrilotris(ethanol) 2,2',2''-Nitrilotris[ethanol] 2,2’,2"-nitrilotris(ethanol) 2,2’,2’’-Nitrilortrisethanol 2,2’,2’’-nitrilotri-ethano 2,2’,2’’-nitrilotris(ethanol) 2,2’,2’’-nitrilotris-ethano 2,2’,2’’-nitrilotris-Ethanol 2,2’,2’’-trihydroxy-triethylamin 2-[Bis-(2-hydroxy-ethyl)-amino]-ethanol Alkano Alkanolamine Alkanolamine 244 alkanolamine244 Daltogen Ethanol, 2,2',2''-nitrilotri- Ethanol, 2,2',2''-nitrilotris- Ethanol,2,2’,2’’-nitrilotris- Mobisyl N(CH2CH2OH)3 Nitrilo-2,2',2 -triethanol Nitrilo-2,2',2''-triethanol nitrilo-2,2’,2"-triethanol nitrilo-2,2’,2’’-triethanol Nitrilotriethanol Sterolamide Sting-Kill Tea (amino alcohol) tea(aminoalcohol) Thiofaco T-35 thiofacot-35 tri(2-hydroxyethyl)amine Tri(hydroxyethyl)amine Triaethanolamin-NG Triethanolamin triethanolamin-ng triethyl,2,2’,2’’-trihydroxy-amin Triethylamine, 2,2',2''-trihydroxy- Triethylolamine Trihydroxytriethylamine Triiethanolamin tris(2-hydroxyethyl)amine(triethanolamine) Tris(beta-hydroxyethyl)amine Tris(b-hydroxyethyl)amine tris(Hydroxyethyl)amine Trola Organic Building Blocks General Use Crystallization Puriss p.a. Oxygen Compounds TRIS(2-HYDROXYETHYL)AMINE TROLAMINE TRI-BETA-HYDROXY ETHYLAMINE TRIETHANOLAMINE T 85 TRIETHANOLAMINE BUFFER TRIETHANOLAMINE TEA
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