1.06308

di-Sodium tetraborate decahydrate

for analysis ACS,ISO,Reag. Ph Eur

• Synonyme(s) : di-Sodium tetraborate decahydrate, Borax, Sodium biborate decahydrate, Sodium borate decahydrate
• Formule empirique (notation de Hill) : B₄Na₂O₇ · 10H₂O
• Numéro CAS: 1303-96-4
• Poids moléculaire : 381.37
• UNSPSC Code: 12352302
• EC Index Number: 215-540-4
• NACRES: NB.21
• MDL number: MFCD00149193
• eCl@ss: 32039090

Propriétés

• grade: ACS reagent
• Quality Segment: 100
• agency: reag. ISO, reag. Ph. Eur.
• vapor pressure: 0.213 hPa ( 20 °C)
• assay: 99.5-103.0% (acidimetric)
• form: crystals
• potency: 2660 mg/kg LD₅₀, oral (Rat), >2000 mg/kg LD₅₀, skin (Rabbit)
• pH: 9.2 (20 °C, 47 g/L in H₂O)
• mp: 75 °C (Elimination of water of crystallisation)
• solubility: 49.74 g/L
• density: 1.72 g/cm³ at 20 °C
• bulk density: 750 kg/m³
• storage temp.: 2-30°C
• SMILES string: [Na+].[Na+].B([O-])(OB([O-])OB=O)OB=O.O.O.O.O.O.O.O.O.O.O
• InChI: 1S/B4O7.2Na.10H2O/c5-1-9-3(7)11-4(8)10-2-6;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
• InChI key: OJPFLODMGUZMKD-UHFFFAOYSA-N

Description

Application

• Inhibition of boric acid and sodium borate on the biological activity of microorganisms in an aerobic biofilter.: This research examines the effects of di-sodium tetraborate decahydrate on the biological activity of microorganisms in an aerobic biofilter. The study finds that di-sodium tetraborate decahydrate can inhibit microbial activity, which has significant implications for waste treatment and environmental management. This inhibition property can be utilized to control microbial populations in various industrial processes, enhancing the efficiency and effectiveness of biofiltration systems (Gunes, 2013).

Analysis Note

Assay (acidimetric): 99.5 - 103.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (0.01 M Solution, 25 °C): 9.15 - 9.20
pH-value (4 %, water): 9.0 - 9.6
Chloride (Cl): ≤ 0.0007 %
Phosphate (PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS,ISO,Reag. Ph Eur

Informations sur la sécurité

• Mot-clé: Danger
• Mentions de précaution: P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + P313
• Hazard Classifications: Eye Irrit. 2 - Repr. 1B
• WGK: WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Pictogrammes: GHS08,GHS07
• Codes de danger: H319,H360FD
• Classe de stockage: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects