Sodium Stearate maka Anionic Surfactant na ncha
Nkọwa ngwaahịa
| Aha bekee | Sodium stearate |
| Nọmba CAS | 822-16-2 |
| Usoro ihe omimi | C18H35NaO2 |
| Ibu molekụla | 306.45907 |
| Nọmba EINECS | 212-490-5 |
| Ebe mgbaze 270 Celsius | |
| Njupụta 1.07 g/cm3 | |
| Ọnọdụ nchekwa | 2-8 Celsius C |
| Solubility | Na-agbaze ntakịrị na mmiri na ethanol (pasent 96). |
| Ụdị | Ntụ ntụ |
| Agba | ọcha |
| Mmiri solubility | SOLUBLE N'ỤRỤ NA MMIRI NA-ekpo ọkụ |
| Nkwụsi ike | Stable, ekwekọghị na ike oxidizing agents. |
Ụdị okwu
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Njirimara kemịkalụ
Sodium stearate bụ ntụ ntụ na-acha ọcha, na-agbaze ntakịrị na mmiri oyi, na-agbaze ngwa ngwa na mmiri ọkụ, ọ dịghịkwa kristal mgbe ọ jụrụ oyi na ngwọta ncha na-ekpo ọkụ.Ọ nwere ezigbo emulsifying, ike ịbanye na nke na-emebi emebi, nwere mmetụta keriri, ma nwee isi abụba.Ọ dị mfe soluble na mmiri ọkụ ma ọ bụ mmanya na-egbu egbu, na ngwọta bụ alkaline n'ihi hydrolysis.
Ngwa
Isi ojiji nke sodium stearate: thickener;emulsifier;onye na-ekesa;nrapado;corrosion inhibitor 1. Detergent: eji chịkwaa ụfụfụ mgbe ị na-asacha.
2. Emulsifier ma ọ bụ dispersant: eji maka emulsification polymer na antioxidant.
3. Corrosion inhibitor: O nwere ihe nchebe na ihe nkiri ngwugwu ụyọkọ.
4. Ihe ịchọ mma: gel na-akpụ akpụ, nrapado transperent, wdg.
5. Nrapado: eji dị ka eke gluu na mado akwụkwọ.
Nkọwa
Sodium stearate bụ nnu sodium nke stearic acid, nke a makwaara dị ka sodium octadecate, bụ nke a na-ejikarị anionic surfactant na akụkụ bụ isi nke ncha.Mmiri hydrocarbyl dị na molekul sodium stearate bụ otu hydrophobic, na carboxyl moiety bụ otu hydrophilic.N'ime mmiri ncha, sodium stearate dị na micelles.Micelles bụ okirikiri na ọtụtụ ụmụ irighiri ihe mejupụtara ya.Otu hydrophobic dị n'ime ma jikọta ya na ndị agha van der Waals, na ìgwè ndị hydrophilic dị n'èzí ma kesaa n'elu micelles.A na-agbasasị micelles na mmiri, mgbe ị na-ezute ntụpọ mmanụ na-adịghị edozi mmiri, mmanụ nwere ike ịgbasa n'ime mmanu mmanu mmanu.Otu hydrophobic nke sodium stearate na-agbaze n'ime mmanụ, ebe otu hydrophilic kwụsịrị n'ime mmiri maka mmetọ.N'ime mmiri siri ike, ion stearate jikọtara ya na calcium na magnesium ion iji mepụta calcium na magnesium salts mmiri na-adịghị edozi, na-ebelata nkwụsị.Na mgbakwunye na sodium stearate, ncha nwekwara sodium palmitate CH3(CH2)14COONa na sodium salts nke ọzọ fatty acids (C12-C20).
