Dodecyl / tetradecyl dimetil amini （DMA1214)

Proprjetajiet

♦ Chemical Structure

Dodecyl/Tetradecyl Dimethyl Amines;

Dodecyl dimethyl amine: C12H25N(CH3)2 (12-carbon alkyl chain).

T etradecyl dimethyl amine: C14H29N(CH3)2 (14-carbon alkyl chain).

Classification: Tertiary amines with two methyl groups and a long alkyl chain, acting as cationic surfactants when protonated.

♦ Physical State

C12-14-alkyldimethyl amines is colorless to light yellow liquids, possibly with a slight odor depending on purity

♦ Solubilità

Dodecyl/Tetradecyl Dimethyl Amines(DMA1214) Sparingly soluble in water, highly soluble in organic

solvents (eż., alkoħol, ethers, hydrocarbons).

♦ Bażiċità

C12-14-alkyldimethyl amines weakly basic (pKa ~9–10), forming salts with acids.

♦ Melting & Boiling Points:

C12-14-alkyldimethyl amines vary with alkyl chain length. Dodecyl dimethyl amine (C12) has a melting point

of ~15–20°Cand boiling point of ~240–250°C; tetradecyl dimethyl amine (C14) melts at ~25–30°C and boils at ~280–300°C.

♦ Surface Activity:

Dodecyl/Tetradecyl Dimethyl Amines(DMA1214) Amphiphilic structure reduces liquid surface tension.

♦ Weak Alkalinity

Dodecyl/Tetradecyl Dimethyl Amines(DMA1214) Reacts with acids to form quaternary ammonium salts,enhancing water solubility.

♦ Reattività

C12-14-alkyldimethyl amines can be further derivatized into cationic surfactants (eż., quaternary compounds)

or betaine-type amphoteric surfactants.

 

Applikazzjonijiet

♦ Surfactant Raw Materials

— Cationic Surfactants: Used in detergents, Trattab tad-drapp, and hair conditioners (eż., quaternary ammonium salts).

— Biocides: Quaternary derivatives are common in disinfectants (eż., benzalkonium chloride)

♦ Industrial Auxiliaries

–Petroleum Industry: As corrosion inhibitors, demulsifiers, or drilling fluid additives.

–Textile Industry: Antistatic agents and softeners.

–Metalworking: Lubricants and rust preventives.

♦ Cosmetics & Personal Care

Emulsifiers, thickeners, and conditioning agents for hair and skin.

♦ Other Uses

Intermediates for synthesizing amides, imidazolines, and other amine-based compounds.

 

Proċess tal-Prodott

♦ Preparazzjoni tal-Materja Prima

–Fatty Alcohols: Derived from coconut or palm oil hydrogenation to produce C12 (dodecanol) and C14 (tetradecanol).

–Dimethylamine (DMA): Serves as the amination reagent.

♦ Kundizzjonijiet ta' Reazzjoni

–Catalyst: Nickel- or copper-based catalysts (eż., Cu-Ni alloy).

–Temperatura & Pressure: Reaction occurs at ~180–220°C under 3–5 MPa.

–Reaction Equation:R-OH+(CH3​)2​NHCatalyst​R-N(CH3​)2​+H2​O (R = C12 or C14 alkyl chain).

♦ Separation and Purification

–Unreacted DMA and water are removed via distillation.

–Fractional distillation yields high-purity dodecyl and tetradecyl dimethyl amines.

♦ Environmental Considerations

Modern processes emphasize green chemistry, using bio-based feedstocks or optimized catalysts to improve selectivity

♦ Tnixxif u Ippakkjar

Once the DMA1214 product is obtained and purified, it is typically dried to remove any residual moisture.

The dried C12-14-alkyldimethyl amines is then packaged in suitable containers, ensuring proper sealing to maintain its quality.

Adequate labeling and storage conditions are maintained to ensure safe handling and storage of the product.

Spezzjoni

♦ Proċess ta 'spezzjoni

Spezzjoni deħlin: Il-materja prima ewlenija,huma spezzjonati għall-kontenut tagħhom, dehra u oħrajn

proprjetajiet ewlenin.

Spezzjoni ta 'tmigħ: il-prinċipju ta ' l-għalf tal-materja prima huwa first-in-first-out, u d-dehra tal-

materja prima ewlenija hija spezzjonata bl-addoċċ skond jekk hemmx bidla kbira fil-ħażna

kundizzjonijiet qabel l-għalf.

Teħid ta 'kampjuni tal-lott fil-proċess tal-produzzjoni: Matul il-proċess tal-produzzjoni, l-indiċi ewlenin ta’ kull lott

tal-prodotti: il-kontenut u l-valur tal-aċidu se jiġu eżaminati tliet darbiet f'perjodi ta 'żmien differenti.

Spezzjoni tal-Ħażna: Kull lott (4tunnellati) jiġi spezzjonat qabel il-ħażna.

Spezzjoni 'l barra: Skond il-kwantità mitluba mill-klijenti, il-prodotti se jittieħdu kampjuni

u spezzjonati.

Spezzjoni qabel il-ġarr: skond il-ħtieġa tal-klijent, spezzjoni ta 'parti terza tista' ssir

barra fuq il-prodotti qabel il-ġarr.

♦ Metodu ta' Spezzjoni

• Dehra Fiżika: Spezzjoni viżwali

• Analiżi tal-Purità:Kromatografija tal-gass (GC)

• Valur Aċidu:Titrazzjoni potenzjometrika

• Kontenut tal-Ilma:Analizzaturi tal-umdità

• Indiċi Refrattiv:Rifrattometru

• Densità:Miter tad-densità

Immarkar, ippakkjar, tbaħħir u ħażna

♦ Immarkar

Kull lott ta' prodotti għandu jkun akkumpanjat minn ċertifikat ta' konformità, inklużi: l-isem tal-

manifattur, l-isem tal-prodott, in-numru tal-lott tal-produzzjoni, il-piż nett għal kull barmil, il

livell ta 'kwalità u l-implimentazzjoni tan-numru standard.weight, grad ta' kwalità u implimentazzjoni

numru standard.

♦ Ippakkjar

Ippakkjat fi tnabar tal-plastik nodfa u niexfa, net weight 160±0.3kg per drum or 800±0.5kg, kompressat u

issiġillat wara kull lott.

♦ Trasport

Dan il-prodott huwa ppakkjat fi tnabar tal-plastik, waqt it-trasport u t-tagħbija/il-ħatt, għandu jkun bir-reqqa

u poġġi l-isfel bil-mod, u jipprevjenu mill-impatt.

♦ Ħażna

Il-post tal-ħażna għandu jkun frisk, niexef u ventilat. Agħmel reżistenti għan-nar u kontra x-xita.