- Khoom: 4-hydroxybenzoic acid
- CAS TSIS MUAJ .: 99-96-7
| Molecular qauv qauv |  |
| Molecular Cov Qauv | C7H6O3 |
| Molecular hnyav | 138.12 |
Cov lus qhia
| Kev tshwm sim | Dawb Crystal Hmoov |
| Zoo siab | 99.0% min |
| Melting taw tes | 231-216 Qib |
| Tus ntxhiab | Tsw |
| So | Ntshiab thiab pob tshab |
| Poob rau ziab | 0.50% max |
| Xim (Pt - co) | 40max |
| Txhos | 0.15% Max |
| Sulfate (yog li42-) | 0.05% max |
| Chloride (cl -) | 0.02% max |
| Phenol | 0.10% Max |
| Cov kua qaub acidic | 0.10% Max |
Yam ntim
25kg / hnab
Chaw ntim khoom
Khaws rau hauv qhov chaw txias. Kaw cov thawv kom nruj kom kaw hauv ib qho qhuav thiab zoo -} ventilated qhov chaw. Cov thawv uas qhib yuav tsum tau ua tib zoo rov qab thiab khaws ncaj qha rau kev tiv thaiv tsis taus.
Kev xa mus
Cim npe nrov: 4-hydroxybenzoic acid|99-96-7, Tuam Tshoj 4-Hydroxybenzoic Acid|99-96-7 manufacturers, lwm tus neeg, Hoobkas
