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Tetraboritan dvojsodný dekahydrát 99.0-103.0%, AnalaR NORMAPUR® Reag. Ph. Eur. analytical reagent

Dodavatel: VWR Chemicals
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27727.231EA 1280 CZK
27727.231 27727.297 27727.460
Tetraboritan dvojsodný dekahydrát 99.0-103.0%, AnalaR NORMAPUR® Reag. Ph. Eur. analytical reagent
Tetraboritan dvojsodný dekahydrát
Vzorec: Na₂B₄O₇·10H₂O
Bod varu: 320 °C (1013 hPa)
Bod tání: 75 °C
Hustota: 1,73 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00149193
CAS číslo: 1303-96-4
EINECS: 215-540-4
REACH: 01-2119490790-32
Merck Index: 13,08662

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Výsledky specifikačního testu

Assay 99.0 - 103.0 %
Appearance of solution Passes test Ph.Eur.
CO3 (Carbonate) Passes test
Identification A Passes test Ph.Eur.
Identification B Passes test Ph.Eur.
Identification C Passes test Ph.Eur.
pH (20°C; 4 %) 9.0 - 9.6
Heavy metals (as Pb) Max. 5 ppm
Insolubility in water Max. 50 ppm
Cl (Chloride) Max. 5 ppm
NH4 (Ammonium) Max. 10 ppm
PO4 (Phosphate) Max. 10 ppm
SO4 (Sulphate) Max. 20 ppm
As (Arsenic) Max. 2 ppm
Ca (Calcium) Max. 100 ppm
Fe (Iron) Max. 5 ppm
Conforms to Reag. Ph.Eur. Passes test

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