Cov hmoov Salicylic acid purity siab CAS 69-72-7
siab purity Salicylic acid hmoov nrog tus nqi zoo CAS 69-72-7
Lub Npe Khoom: Salicylic acidCAS No.: 69-72-7
Cov mis molecular: C7H6O3
Qhov Hnyav Molecular: 138.12
Salicylic acid yog dab tsi?
Salicylic acid yog ib qho tshuaj ntsuab willow tawv extract, thiab tseem yog ib qho tshuaj tiv thaiv kev o.
Salicylic acid feem ntau siv rau kev kho mob ntawm ntau yam kab mob ntawm daim tawv nqaij hauv dermatology,xws li pob txuv (pob txuv), mob txhab txiag thiab lwm yam.
Salicylic acid tuaj yeem tshem tawm cov horny, sterilization, anti-inflammatory, uas yog qhov tsim nyog heevrau kev kho mob pob txuv los ntawm kev txhaws, cov khoom lag luam pob txuv thoob ntiaj teb yogsalicylic acid, qhov concentration feem ntau yog 0.5 txog 2%.
Kev Ua Haujlwm ntawm Salicylic acid
Salicylic acid tuaj yeem siv ua cov khoom siv raw tshuaj. Rau kev npaj tshuaj aspirin,sodium salicylate, salicylamide, analgesic, phenyl salicylate, thiab lwm yam. Kev lag luam zas xim raukev npaj ntawm moxibustion ntshiab daj, ncaj qha xim av 3GN, acid chrome daj thiab lwm yam.Kuj siv ua cov roj hmab vulcanization retarder thiab tshuaj tua kab mob preservatives
Salicylic acid tuaj yeem siv ua cov khoom siv raw tshuaj. Rau kev npaj tshuaj aspirin,sodium salicylate, salicylamide, analgesic, phenyl salicylate, thiab lwm yam. Kev lag luam zas xim raukev npaj ntawm moxibustion ntshiab daj, ncaj qha xim av 3GN, acid chrome daj thiab lwm yam.Kuj siv ua cov roj hmab vulcanization retarder thiab tshuaj tua kab mob preservatives
Cov ntawv thov ntawm Salicylic acid
1. Salicylic acid uas yog ortho hydroxy benzoic acid (o-hydroxybenzoic acid) yog ib homcov khoom siv tseem ceeb ntawm cov organic synthetic raw khoom.Hauv kev tsim tshuaj tua kab, nws yog siv rau cov tshuaj tua kab organic phosphorus Isocarbophos,isofenphos methyl intermediate isopropyl salicylate thiab Rodenticide warfarin, tua nas ethernruab nrab 4-hydroxy coumarin; hauv kev lag luam tshuaj, salicylic acid tau siv uatshuaj tua kab mob, kuj yog cov tshuaj nruab nrab ntawm acetylsalicylic acid (aspirin) thiab lwm yam tshuaj; nws kuj yog ib qhocov khoom siv tseem ceeb ntawm cov xim zas, cov txuj lom, xws li kev lag luam roj hmab.
2. Nws yog siv los ua cov khoom siv raw ntawm cov khoom noj aspirin thiab cov tshuaj tua kab aqueous amine thiabcov khoom phosphorus, kuj tseem siv tau rau hauv kev lag luam zas xim, kev ua kom huv thiab cov tshuaj reagent, thiab lwm yam.
3. Siv rau hauv kev lag luam kws tshuaj rau cov tshuaj antipyretic, analgesic, anti-inflammatory,cov tshuaj diuretic, cov xim siv rau kev lag luam ncaj qha ntawm azo dyes thiab acid mordant dyes, tab sis kuj rau cov txuj lom, thiab lwm yam.
4. Siv ua tus qhia txog kev sib xyaw thiab kev khaws cia.
5. Kev txheeb xyuas rau txhuas, boron, cerium, tooj liab, hlau, txhuas, manganese, mercury, nickel, nyiaj,
titanium, tungsten, vanadium, sulfite, nitrate thiab nitrite. Kev txiav txim siab ntawm txhuas, tooj liab, hlau,thorium, titanium thiab uranium. Txoj kev alkali thiab tus qauv titration iodometry. Lub fluorescentqhov qhia. Qhov qhia txog complexometric.| Khoom | Cov Ntawv Qhia |
| Qhov tsos | Dawb crystalline hmoov |
| Poob thaum ziab | ≤0.5% |
| Cov seem ntawm kev hlawv | ≤0.05% |
| Chloride | ≤0.014% |
| Sulfate | ≤0.02% |
| Cov hlau hnyav | ≤20 ug/g |
| Cov khoom sib xws 4-hydroxybenzoic acid | ≤0.1% |
| 4-hydroxybenzoic acid | ≤0.05% |
| Phenol | ≤0.02% |
| Lwm yam impurities | ≤0.05% |
| Tag nrho cov khoom tsis huv | ≤0.2% |
| Kev Ntsuas | 98.0-102.0% |
Sau koj cov lus ntawm no thiab xa tuaj rau peb
