(1) Cov hmoov dawb, yooj yim soluble hauv dej tab sis insoluble hauv ethanol; Qhov ceev ntawm 2.45g / cm³ thiab melting point ntawm 890 ℃; Deliquescent nyob rau hauv qhib huab cua.
(2) Cov kua dej qhia tau hais tias tsis muaj zog alkalinity thiab ruaj khov ntawm 70 ℃, tab sis yuav hydrolyzed rau hauv disodium phosphate thaum boiled.
| Yam khoom | RESULT (Tech qib) | RESULT (Qib zaub mov) |
| (Cov ntsiab lus tseem ceeb) % ≥ | 98.0 ua | 98.0 ua |
| Sulphate, asSO4% ≤ | 0.5 | / |
| F% ≤ | 0.05 Nws | 0.005 ib |
| Dej tsis sib haum % ≤ | 0.2 | 0.2 |
| Arsenic, raws li % ≤ | 0.01 ib | 0.0003 |
| Cov hlau hnyav, raws li Pb % ≤ | 0.01 ib | 0.001 ib |
| PH ntawm 1% tov | 4.2-4.6 | 4.1-4.7 |
Pob:25 kg / hnab los yog raws li koj thov.
Cia:Khaws ntawm qhov chaw ventilated, qhuav.
Executive Standard:International Standard.