di-Natriumtetraborat decahydrat ≥99.5%, Puriss. p.a. ISO, ACS buffer substance, Fluka™

Leverandør: Honeywell Chemicals
Ratings: Ingen bedømmelse

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Synonymer: Borax tetra, Sodium tetraborate decahydrate, Sodium Borate decahydrate

31457-100G 31457-1KG 31457-500G 31457-5KG
31457-100GEA 547 DKK
31457-100G 31457-1KG 31457-500G 31457-5KG
di-Natriumtetraborat decahydrat ≥99.5%, Puriss. p.a. ISO, ACS buffer substance, Fluka™
di-Natriumtetraborat decahydrat
Formel: Na₂B₄O₇·10H₂O
Molekylvægt: 381.37 g/mol
Kogepunkt: 320
Smeltepunkt: 742 °C (anhy.) ≥ 62 °C (–H₂O of crystall.)
Massefylde: 1.7 g/cm³
Opbevaringstemperatur: Stue temperatur
MDL Number: MFCD00149193
CAS-nummer: 1303-96-4
EINECS: 215-540-4
REACH: 01-2119490790-32
Merck Index: 13,08662

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Specifikationer Testresultater

Assay 99.5 - 105.0 %
Water insoluble matter Max. 0.001 %
pH (5 %, 20°C) 9.0 - 9.6
pH (0.01 m, 25°C) 9.15 - 9.20
Arsenic (As) Max. 0.0001 %
Calcium (Ca) Max. 0.005 %
Copper (Cu) Max. 0.0005 %
Iron (Fe) Max. 0.0005 %
Lead (Pb) Max. 0.0005 %
Heavy metals (as Pb) Max. 0.001 %
Chloride (Cl) Max. 0.001 %
Phosphate (PO₄) Max. 0.001 %
Sulfate (SO₄) Max. 0.005 %


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