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Merck
CN

72000

Sodium tetraborate decahydrate

puriss. p.a., ACS reagent, crystallized, ≥99.5% (T)

Synonym(s):

Borax decahydrate, Sodium borate decahydrate

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About This Item

Linear Formula:
Na2B4O7 · 10H2O
CAS Number:
Molecular Weight:
381.37
UNSPSC Code:
12352300
NACRES:
NA.21
EC Number:
215-540-4
MDL number:
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grade

ACS reagent, puriss. p.a.

assay

≥99.5% (T)

quality

crystallized

pH

9.15-9.20 (25 °C, 0.01 M in H2O)

density

1.73 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg, phosphate (PO43-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.5 mg/kg, Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

SMILES string

O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2

InChI

1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;

InChI key

CDMADVZSLOHIFP-UHFFFAOYSA-N

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Danger

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

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A partial modification of the carbazole method of Bitter and Muir for quantitation of hexuronic acids.
M Kosakai et al.
Analytical biochemistry, 93(2), 295-298 (1979-03-01)
The analysis of aminoglycoside antibiotics by capillary electrophoresis.
Flurer CL.
Journal of Pharmaceutical and Biomedical Analysis, 13(7), 809-816 (1995)
Ana Juan-García et al.
Journal of chromatography. A, 1073(1-2), 229-236 (2005-05-25)
Two procedures based on solid-phase extraction (SPE) and stir-bar sorptive extraction (SBSE) in combination with micellar electrokinetic chromatography (MEKC)--diode array detection (DAD) were compared for the simultaneous extraction of acrinathrin, bitertanol, cyproconazole, fludioxonil, flutriafol, myclobutanil, pyriproxyfen, and tebuconazole in lettuce



Global Trade Item Number

SKUGTIN
1098173-350MG04061838690524