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Methylenediphosphonic acid Structure

Methylenediphosphonic acid

  • Product NameMethylenediphosphonic acid
  • CAS1984-15-2
  • CBNumberCB6760210
  • MFCH6O6P2
  • MW176
  • EINECS217-851-0
  • MDL NumberMFCD00002139
  • MOL File1984-15-2.mol

Chemical Properties

Melting point: 197-199 °C(lit.)
Boiling point: 583.2±60.0 °C(Predicted)
Density  2.111±0.06 g/cm3(Predicted)
storage temp.  -20°C
solubility  DMSO : 250 mg/mL (1420.45 mM; Need ultrasonic)
pka 1.43±0.10(Predicted)
form  Moist Crystals or Crystalline Powder
color  Blue
Water Solubility  Soluble in water.
Merck  14,5792
BRN  1708494
InChI InChI=1S/CH6O6P2/c2-8(3,4)1-9(5,6)7/h1H2,(H2,2,3,4)(H2,5,6,7)
InChIKey MBKDYNNUVRNNRF-UHFFFAOYSA-N
SMILES C(P(O)(O)=O)P(O)(O)=O
CAS DataBase Reference 1984-15-2(CAS DataBase Reference)

Safety

Symbol(GHS)  Corrosion (GHS05)
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
PPE Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 3261 8/PG 3
WGK Germany  -
RTECS  SZ9138000
F  3
HazardClass  8
PackingGroup  III
HS Code  2931900090
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Eye Dam. 1
Skin Corr. 1B
Toxicity LD50 in mice, rabbits (mg/kg): 45-50 i.v. (Subramanian, 1975)
Limited Quantities 5.0 kg (11 lbs) (solid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704:
0
3 0

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