L(+)-Tartaric Acid | 87-69-4 ib
Khoom Description
L(+)-Tartaric acid yog cov xim tsis muaj xim lossis cov pob tshab, lossis xim dawb, zoo granular, crystalline hmoov. Nws tsis muaj ntxhiab, muaj kua qaub saj, thiab ruaj khov hauv huab cua.
L (+) - Tartaric acid yog dav siv los ua acidulant hauv dej haus thiab lwm yam khoom noj. Nrog nws cov kev ua haujlwm kho qhov muag, L(+)-Tartaric acid yog siv los ua cov tshuaj daws teeb meem los daws cov DL-amino-butanol, ib qho nruab nrab rau cov tshuaj antitubercular. Thiab nws yog siv los ua chiral pas dej ua ke los ua ke tartrate derivatives. Nrog nws cov acidity, nws yog siv los ua ib qho catalyst nyob rau hauv resin xov ntawm polyester ntaub los yog pH tus nqi regulator nyob rau hauv oryzanol ntau lawm. Nrog nws cov complexation, L (+) - Tartaric acid yog siv nyob rau hauv electroplating, sulfur tshem tawm, thiab acid pickling. Nws kuj yog siv los ua tus neeg saib xyuas kev sib tw, cov khoom noj khoom haus tshuaj ntsuam xyuas tus neeg saib xyuas lossis tus neeg saib xyuas chelating hauv kev tshuaj xyuas tshuaj thiab tshuaj xyuas tshuaj, lossis ua tus neeg sawv cev tiv thaiv hauv dyeing. Nrog nws qhov txo qis, nws yog siv los ua tus neeg sawv cev txo qis hauv kev tsim cov iav tshuaj los yog tus neeg saib xyuas hauv kev yees duab. Nws tuaj yeem ua haujlwm nrog hlau ion thiab tuaj yeem siv los ua tus neeg saib xyuas lossis polishing tus neeg sawv cev ntawm cov hlau nto.
Daim ntawv thov
Kev lag luam zaub mov
- Raws li acidifier thiab natural preservatives rau marmalades, ice cream, jellies, kua txiv hmab txiv ntoo, preserves, thiab dej haus.
- Raws li effervescent rau carbonated dej.
- Raws li emulsifier thiab preservative hauv kev lag luam ua khob cij thiab hauv kev npaj cov khoom qab zib thiab khoom qab zib.
Oenology: Siv los ua acidifier. Siv nyob rau hauv musts thiab wines los npaj wines uas sib npaug ntawm qhov pom ntawm saj, qhov tshwm sim yog qhov nce hauv lawv cov qib acidity thiab txo qis hauv lawv cov ntsiab lus pH.
Kev lag luam tshuaj pleev ib ce: Siv los ua ib feem tseem ceeb ntawm ntau lub cev ntuj tsim.
Specification
| Yam khoom | STANDARD |
| Qhov tshwm sim | Dawb hmoov |
| Purity (raws li c4h6o6) | 99.5 - 100.5% |
| Kev sib hloov tshwj xeeb (20 ℃) | +12.0° — +13.0° |
| Cov hlau hnyav (raws li pb) | 10 ppm max |
| Residue ntawm ignition | 0.05% max |
| Arsenic (raws li) | 3 ppm max |
| Poob rau ziab | 0.2% max |
| Chloride | 100 ppm max |
| Sulfate | 150 ppm max |
| Oxalate | 350 ppm max |
| Calcium | 200 ppm max |
| Dej daws clarity | Ua raws li STANDARD |
| Xim | Ua raws li STANDARD |
