Tetraboran disodowy, dekahydrat Pharmpur® ekstra czysty, BP, NF – SCHARLAU
Informacje dodatkowe
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PRODUCENT: SCHARLAB
di-Sodium tetraborate decahydrate
Borax
– Synonyms: Borax, Sodium biborate decahydrate, Sodium borate decahydrate
– Na2B4O7·10H2O
– M = 381,37 g/mol
– CAS [1303-96-4]
– EINECS-No.: 215-540-4
– Solub. in water: (20 ºC): 51,4 g/l
– Melting point: 75 ºC
– Boiling point: 1575 ºC (anhydrous)
– Vapour pressure: (20 ºC) 0,213 hPa
– LD 50 (oral, rat): 2660 mg/kg
– GHS-signal word: Danger
– GHS-H sentences: H319 – H360FD
– GHS-P sentences: P281 – P201 – P202 – P308+P313 – P405 – P501a
– Tariff number: 2840 19 90 00
– Applications: reference material, for calibrating pH-meters, for pharmaceutical use.
SPECIFICATIONS
assay (acidimetric): 99,0 – 103,0 %
Identification sodium: passes test
Identification borate: passes test
Identification A (EP): passes test
Identification B (EP): passes test
appearance of solution: clear and colourless
pH (4 %, H2O): 9,0 – 9,6
carbonate, bicarbonate: passes test
sulfates (SO4): max. 50 ppm
ammonium (NH4): max. 10 ppm
arsenic (As): max. 5 ppm
calcium (Ca): max. 100 ppm:
