Salicylic acid Cas: 69-72-7
Nambala ya Catalog | XD92029 |
Dzina lazogulitsa | Salicylic acid |
CAS | 69-72-7 |
Fomu ya Molecularla | C7H6O3 |
Kulemera kwa Maselo | 138.12 |
Zambiri Zosungira | 2-8 ° C |
Harmonize Tariff Code | 29182100 |
Mafotokozedwe a Zamalonda
Maonekedwe | Ufa woyera mpaka woyera |
Asay | 99% mphindi |
Malo osungunuka | 158-161 °C (kuyatsa) |
Malo otentha | 211 °C (kuyatsa) |
kachulukidwe | 1.44 |
kachulukidwe ka nthunzi | 4.8 (vs mpweya) |
kuthamanga kwa nthunzi | 1 mm Hg (114 °C) |
refractive index | 1,565 |
Fp | 157 ° C |
kusungunuka | ethanol: 1 M pa 20 °C, yomveka, yopanda mtundu |
pka | 2.98 (pa 25 ℃) |
PH | 2.4 (H2O) (njira yodzaza) |
Mtundu wa PH | Non0 uorescence (2.5) mpaka buluu wakuda 0 uorescence (4.0) |
Kusungunuka kwamadzi | 1.8 g/L (20 ºC) |
λ max | 210nm, 234nm, 303nm |
Zomverera | Kuwala Kumverera |
Sublimation | 70 ºC |
Salicylic acid ndi chinthu chovomerezeka ndi FDA chosamalira khungu chomwe chimagwiritsidwa ntchito pochiza ziphuphu zakumaso, ndipo ndiye beta hydroxy acid (BHA) yokhayo yomwe imagwiritsidwa ntchito pazosamalira khungu.Oyenera khungu lamafuta, salicylic acid imadziwika bwino chifukwa cha kuthekera kwake kuyeretsa mafuta ochulukirapo kuchokera pores ndikuchepetsa kupanga mafuta kupita patsogolo.Chifukwa salicylic acid imasunga ma pores kukhala aukhondo komanso osatsekeka, imalepheretsa mtsogolo kukhala ndi mitu yoyera komanso yakuda.Salicylic acid imatulutsanso khungu lakufa, ndipo mphamvu zake zotsutsana ndi kutupa zimapangitsa kuti zikhale zofunikira kwambiri kwa iwo omwe ali ndi psoriasis.Salicylic acid mwachibadwa imapezeka mu khungwa la msondodzi, makungwa okoma a birch, ndi masamba obiriwira a wintergreen, koma matembenuzidwe opangidwa amagwiritsidwanso ntchito pazinthu zosamalira khungu.