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Substance Name: Sodium hexametaphosphate
RN: 10124-56-8
UNII: N40N91DW96
InChIKey: GCLGEJMYGQKIIW-UHFFFAOYSA-H

Classification Code

  • Reportable Quantity (RQ) = 5000 lb

Molecular Formulas

  • H6-O18-P6.6Na
  • O18-P6.6Na

Molecular Weight

  • 611.766
 
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Names and Synonyms

Name of Substance

  • Graham's salt
  • Metaphosphoric acid, hexasodium salt
  • Sodium hexametaphosphate
  • Sodium polymetaphosphate

Synonyms

  • Calgon
  • Calgon (old)
  • Calgon S
  • Caswell No. 772
  • Chemi-charl
  • EC 233-343-1
  • EINECS 233-343-1
  • EPA Pesticide Chemical Code 076402
  • FEMA 3027
  • Graham's salt
  • Hexametaphosphate, sodium salt
  • Hexasodium hexametaphosphate
  • Hexasodium metaphosphate
  • HMP
  • HSDB 5053
  • Medi-Calgon
  • Metaphosphoric acid (H6P6O18), hexasodium salt
  • Metaphosphoric acid, hexasodium salt
  • Natrium hexametaphosphat
  • Natrium hexametaphosphat [German]
  • Phosphate, sodium hexameta
  • SHMP
  • Sodium hexametaphosphate
  • Sodium hexametaphosphate (Na6P6O18)
  • Sodium phosphate (Na6P6O18)
  • Sodium phosphate, tribasic
  • Sodium polymeta phosphate
  • UNII-N40N91DW96

Systematic Names

  • Metaphosphoric acid (H6P6O18), hexasodium salt
  • Metaphosphoric acid (H6P6O18), sodium salt (1:6)
  • Metaphosphoric acid, hexasodium salt
  • Sodium metaphosphate

Superlist Names

  • Metaphosphoric acid, hexasodium salt
  • Sodium hexametaphosphate
  • Sodium phosphate, tribasic

Registry Numbers

CAS Registry Number

  • 10124-56-8

FDA UNII

  • N40N91DW96

Other Registry Numbers

  • 1357387-91-7
  • 16210-45-0
  • 193678-44-3
  • 20517-55-9
  • 8012-14-4

Related Registry Number

  • 14550-21-1 (unspecified hydrochloride salt)

System Generated Number

  • 0010124568

Molecular Formulas

Molecular Formulas

  • H6-O18-P6.6Na
  • O18-P6.6Na

Molecular Formula Fragments

  • COMPONENT
  • H6-O18-P6
  • Na
  • O18-P6

Structure Descriptors

InChI

InChI=1S/6Na.H6O18P6/c;;;;;;1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h;;;;;;(H,1,2)(H,3,4)(H,5,6)(H,7,8)(H,9,10)(H,11,12)/q6*+1;/p-6

InChIKey

GCLGEJMYGQKIIW-UHFFFAOYSA-H

Smiles

[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P1(=O)OP(=O)([O-])OP(=O)([O-])OP(=O)([O-])OP(=O)([O-])OP(=O)([O-])O1

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 870mg/kg (870mg/kg) KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)" Revue d'Epidemiologie, Medecine Sociale et Sante Publique. Vol. 10, Pg. 391, 1962.
mouse LD50 intravenous 62mg/kg (62mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957.
mouse LD50 oral 4320mg/kg (4320mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(9), Pg. 19, 1973.
mouse LD50 subcutaneous 1300mg/kg (1300mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957.
rabbit LDLo intravenous 140mg/kg (140mg/kg)   Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 169, Pg. 238, 1933.
rat LD50 oral 6200mg/kg (6200mg/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(9), Pg. 19, 1973.