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1.06309

Supelco

di-Sodium tetraborate

anhydrous 99.99 Suprapur®

Synonym(s):

di-Sodium tetraborate, Borax

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About This Item

Empirical Formula (Hill Notation):
B4Na2O7
CAS Number:
1330-43-4
Molecular Weight:
201.22
MDL number:
MFCD00081185
UNSPSC Code:
12352302
EC Index Number:
215-540-4
NACRES:
NB.21

grade

for inorganic trace analysis

Quality Level

100

vapor pressure

7.3 hPa ( 1200 °C)

Assay

99.99%

potency

>2000 mg/kg LD50, skin (Rabbit)

pH

9.2 (20 °C, 25 g/L in H2O)

mp

742 °C

solubility

25.6 g/L

density

2.37 g/cm3 at 20 °C

bulk density

700 kg/m3

storage temp.

2-30°C

InChI

1S/4B.2Na.7H2O.7O/h;;;;;;7*1H2;;;;;;;/q4*+3;2*+1;;;;;;;;7*-2

InChI key

HJIQVKXMQOLFFS-UHFFFAOYSA-N

Analysis Note

Purity (metallic): ≥ 99.99 %
Assay (acidimetric): ≥ 99 %
Chloride (Cl): ≤ 5 ppm
Phosphate (PO₄): ≤ 5 ppm
Silicate (SiO₂): ≤ 5 ppm
Sulfate (SO₄): ≤ 50 ppm
Ba (Barium): ≤ 10.0 ppm
Ca (Calcium): ≤ 5.0 ppm
Cd (Cadmium): ≤ 0.050 ppm
Ce (Cerium): ≤ 0.05 ppm
Co (Cobalt): ≤ 0.100 ppm
Cr (Chromium): ≤ 0.05 ppm
Cu (Copper): ≤ 0.10 ppm
Eu (Europium): ≤ 0.05 ppm
Fe (Iron): ≤ 0.10 ppm
K (Potassium): ≤ 50 ppm
La (Lanthanum): ≤ 0.05 ppm
Li (Lithium): ≤ 5.0 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.050 ppm
Ni (Nickel): ≤ 0.05 ppm
Pb (Lead): ≤ 0.05 ppm
Rb (Rubidium): ≤ 5 ppm
Sc (Scandium): ≤ 0.05 ppm
Sm (Samarium): ≤ 0.05 ppm
Sr (Strontium): ≤ 5.00 ppm
Tl (Thallium): ≤ 0.05 ppm
Y (Yttrium): ≤ 0.05 ppm
Yb (Ytterbium): ≤ 0.050 ppm
Zn (Zinc): ≤ 0.05 ppm

Legal Information

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

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Danger

Hazard Statements

H319 - H360FD

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

Storage Class Code

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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