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Merck
CN

1.10783

Spectromelt® A 10

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

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关于此项目

经验公式(希尔记法):
B4Li2O7
化学文摘社编号:
分子量:
169.12
UNSPSC Code:
12352302
EC Index Number:
234-514-3
NACRES:
NA.21
MDL number:
Assay:
≥99.0% (acidimetric)
Form:
solid
Solubility:
141.2 g/L
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Quality Segment

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 (PO43-): ≤20 ppm, silicate (as SiO2): ≤100 ppm, sulfate (SO42-): ≤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

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

含量测定(酸量滴定法): ≥ 99.0 %
氯化物(Cl): ≤ 50 ppm
磷酸盐(PO₄): ≤ 20 ppm
硅酸盐(以SiO₂计): ≤ 100 ppm
硫酸盐(SO₄): ≤ 50 ppm
Ag(银): ≤ 5 ppm
Al(铝): ≤ 10 ppm
Ba(钡): ≤ 5 ppm
Ca(钙): ≤ 20 ppm
Cd(镉): ≤ 5 ppm
Co(钴): ≤ 5 ppm
Cr(铬): ≤ 5 ppm
Cu(铜): ≤ 5 ppm
Fe(铁): ≤ 10 ppm
Ga(镓): ≤ 5 ppm
K(钾): ≤ 10 ppm
Mg(镁): ≤ 5 ppm
Mn(锰): ≤ 5 ppm
Na(钠): ≤ 20 ppm
Ni(镍): ≤ 5 ppm
Pb(铅): ≤ 5 ppm
Pb(铅): ≤ 5 ppm
Zn(锌): ≤ 5 ppm
灼烧损失(1000 °C): ≤ 1.0 %
堆密度:约50

Other Notes

替代:10783; 10783-3

Legal Information

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


signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 2

存储类别

13 - Non Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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