Chemical name: Sodium metaborate tetrahydrate
ProductName: 偏硼酸鈉(四水)
CAS NO: 10555-76-7
Molecular mass: 137.86 g/mol
Formula: NaBO2·4H2O
Chemical name: Sodium metaborate tetrahydrate
ProductName: 偏硼酸鈉(四水)
CAS NO: 10555-76-7
Molecular mass: 137.86 g/mol
Formula: NaBO2 · 4H2O
Appearance: Corless crystals or white crystalline
(白色晶體)
Purity: ≧99.5%
|
檢驗項目 |
Specification |
Result |
|
Appearance |
Colorless crystals or white crystalline |
Conforms |
|
Assay(NaBO2˙4H2O) |
Not Less Than99% |
99.50% |
|
Sulphate(SO4） |
NotMore Than0.01% |
<0.01% |
|
Nitrate(NO3) |
Not More Than0.003% |
<0.003% |
|
Phosphate(PO4) |
Not More Than0.001% |
<0.001% |
|
Carbonate(CO3） |
Conforms |
Conforms |
|
Transparency of solution |
Not More Than4 |
＜4 |
|
Chloride(Cl) |
Not More Than0.002% |
<0.002% |
|
Water-insolublematter |
Not More Than0.005% |
<0.005% |
|
Iron(Fe) |
Not More Than0.001% |
<0.001% |
|
Calcium(Ca) |
Not More Than0.005% |
<0.005% |
|
Heavy metals(as Pb) |
Not More Than0.001% |
<0.001 |
