1.10783

Spectromelt^® A 10

for X-ray fluorescence analysis, (di-lithium tetraborate)

• Empirische Formel (Hill-System): B₄Li₂O₇
• CAS-Nummer: 12007-60-2
• Molekulargewicht: 169.12
• UNSPSC Code: 12352302
• EC Index Number: 234-514-3
• NACRES: NA.21
• MDL number: MFCD00011083
• Assay: ≥99.0% (acidimetric)
• Form: solid
• Solubility: 141.2 g/L

Eigenschaften

• Quality Segment: 100
• assay: ≥99.0% (acidimetric)
• form: solid
• pH: 9.1 (20 °C, 100 g/L in H₂O, slurry)
• mp: 930 °C
• solubility: 141.2 g/L
• density: 2.35 g/cm³ at 20 °C
• bulk density: 330 kg/m³
• anion traces: chloride (Cl^-): ≤50 ppm, phosphate (PO₄^3-): ≤20 ppm, silicate (as SiO₂): ≤100 ppm, sulfate (SO₄^2-): ≤50 ppm
• cation traces: Ag: ≤5 ppm, Al: ≤10, Ba: ≤5 ppm, Ca: ≤20 ppm, Cd: ≤5 ppm, Co: ≤5 ppm, Cr: ≤5 ppm, Cu: ≤5 ppm, Fe: ≤10 ppm, Ga: ≤5 ppm, K: ≤10 ppm, Mg: ≤5 ppm, Mn: ≤5 ppm, Na: ≤20 ppm, Ni: ≤5 ppm, Pb: ≤5 ppm, Sr: ≤5 ppm, Zn: ≤5 ppm
• storage temp.: 2-30°C
• SMILES string: [B].[B].[B].[B].[Li].[Li].O.O.O.O.O.O.O
• InChI: 1S/4B.2Li.7H2O/h;;;;;;7*1H2
• InChI key: DPYKRXYVXDYLEY-UHFFFAOYSA-N

Beschreibung

Application

Spectromelt^® A 10, also known as di-lithium tetraborate (Li₂B₄O₇), is a high-purity flux used primarily in X-ray fluorescence (XRF) analysis. Spectromelt^® A 10 can be utilized in:

• X-ray Fluorescence (XRF) Analysis: Used as a flux to prepare samples for XRF analysis. It helps in creating a homogeneous glass bead from the sample, which is essential for accurate and reproducible XRF measurements.
• Sample Preparation: Employed in the fusion of samples, particularly for geological, environmental, and industrial materials to ensure that the sample is evenly distributed and free from matrix effects, which can interfere with the analysis.

Analysis Note

Gehalt (acidimetrisch): ≥ 99,0 %
Chlorid (Cl): ≤ 50 ppm
Phosphat (PO₄): ≤ 20 ppm
Silicat (SiO₂): ≤ 100 ppm
Sulfat (SO₄): ≤ 50 ppm
Ag (Silber): ≤ 5 ppm
Al (Aluminium): ≤ 10 ppm
Ba (Barium): ≤ 5 ppm
Ca (Calcium): ≤ 20 ppm
Cd (Cadmium): ≤ 5 ppm
(Cobalt): ≤ 5 ppm
Cr (Chrom): ≤ 5 ppm
Cu (Kupfer): ≤ 5 ppm
Fe (Eisen): ≤ 10 ppm
Ga (Gallium): ≤ 5 ppm
K (Kalium): ≤ 10 ppm
Mg (Magnesium): ≤ 5 ppm
Mn (Mangan): ≤ 5 ppm
Na (Natrium): ≤ 20 ppm
Ni (Nickel): ≤ 5 ppm
Pb (Blei): ≤ 5 ppm
Sr (Strontium): ≤ 5 ppm
Zn (Zink): ≤ 5 ppm
Glühverlust (1000 °C): ≤ 1,0 %
Schüttdichte: ca. 50

Other Notes

Ersetzt: 10783; 10783-3

Legal Information

SPECTROMELT is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• signalword: Danger
• pcodes: P201 - P202 - P280 - P301 + P312 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 2
• Lagerklasse: 13 - Non Combustible Solids
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• pictograms: GHS08,GHS05,GHS07
• hcodes: H302,H318,H361fd