Salicylic acid - Properties
Wannan samfurin farar kristal mai laushi mai kyau ko farin lu'ulu'u foda; mara wari ko kusan mara wari; ruwa bayani yana nuna acidic dauki. Wannan samfurin yana da sauƙin narkewa a cikin ethanol ko ether, mai narkewa a cikin ruwan zãfi, dan kadan mai narkewa a cikin trifluoromethane, dan kadan mai narkewa cikin ruwa.
Gabatarwa zuwa Salicylic Acid
Salicylic acid, wanda kuma aka sani da salicylic acid, fari ne na crystalline foda, mara wari, tare da ɗanɗano mai ɗaci sannan kuma mai ɗanɗano. Ya wanzu a cikin haushin willow, farin ganyen lu'u-lu'u da birch mai zaki a yanayi. Chemical dabara C6H4 (OH) (COOH), narkewa batu 157-159 ℃, a hankali canza launi karkashin haske. Matsakaicin dangi shine 1.44. Matsayin tafasa yana kusan 211 ° C / 2.67kPa. Matsakaicin zafin jiki na 76 ° C. A ƙarƙashin matsa lamba na al'ada, ana iya rushe shi zuwa phenol da carbon dioxide ta hanyar dumama da sauri. Mai narkewa a cikin ethanol, ether, chloroform, benzene, acetone, turpentine, ba sauƙin narkewa cikin ruwa ba. 1 g na salicylic acid za a iya narkar da shi a cikin 460ml na ruwa, 15ml na ruwan zãfi, 2.7ml na ethanol, 3ml acetone, 3ml ether, 42ml na chloroform, 135ml na benzene, 52ml na turpentine, game da 60ml na glycerin na petrolem. ether. Ƙara sodium phosphate, borax, da dai sauransu na iya ƙara solubility na salicylic acid a cikin ruwa. pH na maganin salicylic acid mai ruwa shine 2.4. Salicylic acid da ferric chloride aqueous bayani suna samar da launi mai launin shuɗi na musamman.
Wataƙila ba ku taɓa jin labarin salicylic acid ba, amma dole ne ku saba da aspirin. A gaskiya ma, aspirin wani abu ne na salicylic acid. Baya ga salicylic acid na roba a cikin wasu magunguna, salicylic acid na halitta yana da wadata a yawancin abinci, irin su 'ya'yan itatuwa, kayan lambu, kofi, shayi, kwayoyi, kayan yaji da zuma. Wadannan salicylic acid na dabi'a sune tsire-tsire A nufin kariyar kai daga kwari, fungi da cututtuka. Duk da haka, salicylic acid, ko na halitta ko na roba, na iya haifar da mummunar tasiri a wasu mutane. Rashin haƙuri na salicylate sau da yawa yana da alaƙa da magungunan da kuke sha, tun da magunguna. kamar aspirin ya ƙunshi mafi yawan adadin salicylates idan aka kwatanta da abinci. Misali, cin abinci na salicylic acid shine yawanci 10-200 MG kowace rana, idan aka kwatanta da 325-650 MG don kashi na aspirin.Bincike ya gano cewa aspirin yana ƙara haɗarin cututtukan gastrointestinal.
Salicylic Acid - Idan aka kwatanta da AHAs don Tasirin Kayan kwalliya
Ana fitar da salicylic acid (BHA) daga haushin willow da ganyen holly, wanda kuma aka sani da kayan lambu; Ana fitar da acid 'ya'yan itace (AHA) daga rake; acid ne da aka ciro daga albarkatun kasa guda biyu daban-daban. Dukansu biyun suna iya sarrafa mai, fitar da fata, share kuraje, ƙunshe pores, da kuma kawar da lahani. Bawon acid ɗin 'ya'yan itace tare da maida hankali fiye da 50% na likitan fata ne kawai zai iya sarrafa shi, yayin da bawon salicylic acid ana rarraba shi azaman magani na likita ba tare da la'akari da maida hankali ba. Ya kamata a lura cewa wasu mutane ba su dace da yin amfani da duk wani taro na ruwa ba. Salicylic acid, don haka salon kayan ado na gabaɗaya ba zai iya aiwatar da shi ba. An ba da izini bisa doka don yin bawon fata tare da adadin acid ɗin 'ya'yan itace da ke ƙasa da kashi 40% a cikin salon kayan kwalliya. A kwatanta, 'ya'yan itace acid ya fi aminci fiye da salicylic acid. Amma ga tasirin, salicylic acid kawai yana kulle a cikin ƙananan ƙwayar cuta, kawai yana taka rawa na jiyya mai sauƙi da toshewa, kuma canjin yanayin fata na ɗan lokaci ne kawai, yayin da acid 'ya'yan itace ya shiga cikin dermis don canza yanayin fata. wanda za a iya warkewa. Haka ne, amma ga ramukan kuraje da lalacewa ta haifar, tasirin salicylic acid ba shi da ƙarfi, don haka salicylic acid ba za a iya kiransa "peeling salicylic acid ba", ana iya kiransa kawai "maganin salicylic acid". Aminci da tasirin salicylic acid peeling da peeling acid 'ya'yan itace sun bambanta, saboda 'ya'yan itace acid ba mai guba bane kuma ana iya amfani dashi daga ƙasa zuwa babba (8% -15% -20% -30% -40%), sannu a hankali yana daidaitawa zuwa ba zai haifar da konewar fata ba, tawaya ko wani tasiri. Kuma salicylic acid yana da guba, yawan maida hankali bai dace da amfani da fuska ba, akwai iyakacin hankali, salicylic acid tare da maida hankali na 3% -6% ana iya amfani dashi don fitar da fata, sama da 6% Mai lalacewa ga fata. , babban taro na 40% salicylic acid yana da karfi mai lalata keratin.
Menene salicylic acid ke yi?
Dangane da ka'idodin Hukumar Kula da Abinci da Magunguna ta Jiha (CFDA), babban iyaka na tattara kayan shafawa shine 2%. An tabbatar da cewa 0.5% -2% salicylic acid yana da lafiya don maganin kuraje. Ba'a ba da shawarar ku nemi samfuran tare da mafi girman maida hankali ba. Wannan maida hankali ya isa ya zama mai tasiri.
Salicylic acid na iya narkar da siminti tsakanin cuticles kuma ya sa cuticles su fadi, don haka zai iya cire ƙananan cuticles da kuma inganta metabolism.
Metabolism na fata: Babban aikin stratum corneum na fata shine kare kwayoyin halitta na kowane Layer na fata. Metabolism na Layer na sel epidermal ta Layer zai fita a zahiri. Halitta crumbs. Tsohuwar keratin da ba ta faɗowa al'ada ba zai sa fata ta zama ƙunci da bushewa, rage saurin haɓakar fata, har ma ta haifar da kuraje don toshe pores.
Sakamakon exfoliation: Salicylic acid zai iya cire ƙwayar cuta mai yawa, kuma a lokaci guda inganta saurin sabuntawa na sel epidermal; Idan sel na epidermal sabo ne kuma samari masu cike da kuzari, za su dawo da fata mai santsi da laushi.
Ƙunƙasa pores: Salicylic acid yana da mai-mai narkewa, kuma yana iya shiga cikin zurfin Layer na pores tare da glanden sebaceous wanda ke ɓoye mai, wanda ke da amfani don narkar da tsofaffin cuticles da aka tara a cikin pores da kuma inganta yanayin da aka toshe pores, don haka zai iya toshewa. samuwar kurajen fuska da kuma ruguza shi Mik'ewar pores.
Rigakafin kurajen fuska: Salicylic acid yana aiki akan sel na bangon follicle gashi, wanda zai iya taimakawa wajen kawar da toshewar gashin gashi da kuma gyara zubar da kwayar halitta mara kyau. Yana iya hana toshe kuraje don ƙananan kuraje kuma yana da tasiri ga masu baƙar fata. Yana iya rage katangar gashin gashi Fitar da ba ta dace ba, yana hana sabbin raunuka, amma ba shi da wani tasiri wajen rage fitar da ruwa da kuma kawar da kurajen bacilli.
Aikin salicylic acid shine don tsaftace cutin da ke tsufa, yana sa fata ta zama mai laushi, kuma ba ta da sauƙi ga kuraje.
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Lokacin aikawa: Maris-08-2023
