1.06999

penta-Sodium triphosphate

for BOD determination acc. to DIN 38409-H-51

• Synonym(s): penta-Sodium triphosphate
• Empirical Formula (Hill Notation): Na₅O₁₀P₃
• CAS Number: 7758-29-4
• Molecular Weight: 367.86
• MDL number: MFCD00003514
• UNSPSC Code: 12352302
• EC Index Number: 231-838-7
• NACRES: SE.11

Properties

• vapor pressure: <0.1 hPa ( 20 °C)
• Quality Level: 100
• form: solid
• potency: 3120 mg/kg LD₅₀, oral (Rat); >7940 mg/kg LD₅₀, skin (Rabbit)
• pH: 9.9 (20 °C, 10 g/L in H₂O)
• mp: 622 °C (decomposition)
• density: 2.52 g/cm³ at 20 °C
• bulk density: 1000 kg/m³
• storage temp.: no temp limit
• InChI: 1S/5Na.H5O10P3/c;;;;;1-11(2,3)9-13(7,8)10-12(4,5)6/h;;;;;(H,7,8)(H2,1,2,3)(H2,4,5,6)/q5*+1;/p-5
• InChI key: HWGNBUXHKFFFIH-UHFFFAOYSA-I

Description

Analysis Note

Assay (acidimetric, P₂O₅): 57 - 59 %
pH-value (1 %; water): 9 - 10
Fe (Iron): ≤ 0.005 %

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable