Sodium Tetraborate Pentahydrate CAS #: 12179-04-3

Synonyms Borax pentahydrate, Sodium borate pentahydrate, Disodium tetraborate pentahydrate, Boron sodium oxide pentahydrate, Sodium bicyclo[3.3.1]tetraboroxane-3,7-diolate hydrate (2:1:5), Di-sodium tetraborate pentahydrate, Boric acid sodium salt pentahydrate, Tincalconite, Etibor-48, CAS 11130-12-4, CAS 12045-88-4, B4Na2O7.5H2O

Compound Formula: H10Na2B4O12 Molecular Weight: 291.288 Appearance: White powder or granules Melting Point: 200 °C Boiling Point: N/A Density: 1.82 g/cm3 Solubility in H2O: 3.8% (20 °C), 51.2% (100 °C) pH: 9.3 (3% solution) Exact Mass: 292.034 g/mol Monoisotopic Mass: 292.034 g/mol Bulk Density: 750 kg/m3

Health & Safety Information Signal Word: N/A Hazard Statements: N/A Hazard Codes: N/A Precautionary Statements: N/A Risk Codes: N/A Safety Statements: N/A RTECS Number: VZ2540000 Transport Information: NONH for all modes of transport

Chemical Identifiers Linear Formula: Na2B4O7• 510H2O Pubchem CID: 86341921 MDL Number: MFCD00287285 EC No.: 601-071-6 IUPAC Name: disodium; [oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate; pentahydrate Beilstein/Reaxys No.: N/A SMILES: B(=O)OB([O-])OB([O-])OB=O.O.O.O.O.O.[Na+].[Na+] InchI Identifier: InChI=1S/B4O7.2Na.5H2O/c5-1-9-3(7)11-4(8)10-2-6;;;;;;;/h;;;5*1H2/q-2;2*+1;;;;; InchI Key: QZSYXKPOZFXCDM-UHFFFAOYSA-N Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 973 gallon liquid totes Special package is available on request.