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Alkali Metal Compounds (Li, Na, K, Rb, Cs)

Sodium orthophosphate, tribasic, 98%

Extra PureAvailable on request

Order Sodium orthophosphate, tribasic, 98% (CAS 10101-89-0) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Sodium orthophosphate, tribasic, 98% chemical structure
CAS number10101-89-0
FormulaH24Na3O16P
Molar mass380.12 g/mol
Physical formPowder
HS code28352990
UN numberUN 3262
Purity98%
InChIKeyASTWEMOBIXQPPV-UHFFFAOYSA-K
IUPAC nametrisodium;phosphate;dodecahydrate

About Sodium orthophosphate, tribasic, 98%

Researchers and plant chemists source Sodium orthophosphate, tribasic, 98% from Zemixal for routine and specialised work. For your records (Extra Pure), the material is defined by CAS 10101-89-0, formula H24Na3O16P and molar mass 380.12 g/mol. Expect crystalline powder.

Use cases we see most often

  • Buffer preparation
  • Materials research

Safe handling

Literature values: melting point ~75 °C (dec.) and density 1.62 g/mL at 25 °C. Classified under GHS with signal word Danger and hazard statements H314, H315, H319 and H335. Read the SDS before first use. For transport it ships as UN UN 3262.

Available as 500 g, 5 kg and 4 x 25 kg. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Buffer preparation
  • Materials research

Applications

Grade guides

Specifications and identifiers

Specifications of Sodium orthophosphate, tribasic, 98%
Product nameSodium orthophosphate, tribasic, 98%
Catalogue numberZX-013253
CAS number10101-89-0
IUPAC nametrisodium;phosphate;dodecahydrate
Molecular formulaH24Na3O16P
Molar mass380.12 g/mol
Exact mass380.0495
GradeExtra Pure
Purity / assay98%
Physical formPowder
AppearanceCrystalline powder
Melting point~75 °C (dec.)
Density1.62 g/mL at 25 °C
H-bond donors / acceptors12 / 16
Topological polar surface area98.3 Ų
HS code28352990
UN numberUN 3262
InChIKeyASTWEMOBIXQPPV-UHFFFAOYSA-K
SMILESO.O.O.O.O.O.O.O.O.O.O.O.[O-]P(=O)([O-])[O-].[Na+].[Na+].[Na+]
PubChem CID61473
SynonymsSodium phosphate tribasic dodecahydrate, Trisodium phosphate dodecahydrate, Sodium phosphate dodecahydrate, Phosphoric acid, trisodium salt, dodecahydrate, sodium phosphate, tribasic, dodecahydrate, Phosphoric acid, trisodium salt, dodeahydrate, Phosphoric acid, sodium salt, hydrate (1:3:12), Trisodium phosphate (tert) dodecahydrate, Sodiumphosphatedodecahydrate, Na3PO4.12H2O, trisodiumphosphate dodecahydrate, Sodium orthophosphate dodecahydrate

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H314Causes severe skin burns and eye damage
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P319, P321, P332 + P317, P337 + P317, P362 + P364, P363, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Sodium orthophosphate, tribasic, 98%
500 gQuoted on request
5 kgQuoted on request
4 x 25 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Sodium orthophosphate, tribasic, 98%

Which CAS number identifies Sodium orthophosphate, tribasic, 98%?
Sodium orthophosphate, tribasic, 98% is registered under CAS 10101-89-0. You may also see it listed as Sodium phosphate tribasic dodecahydrate, Trisodium phosphate dodecahydrate, Sodium phosphate dodecahydrate. Our catalogue number for this item is ZX-013253.
What are the formula and molar mass of Sodium orthophosphate, tribasic, 98%?
For Sodium orthophosphate, tribasic, 98%, its formula is H24Na3O16P and its molar mass is 380.12 g/mol. InChIKey ASTWEMOBIXQPPV-UHFFFAOYSA-K lets you match it in any structure database.
What grade and pack sizes are available for Sodium orthophosphate, tribasic, 98%?
This listing is Extra Pure grade with 98% purity. Standard packs are 500 g, 5 kg, 4 x 25 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Sodium orthophosphate, tribasic, 98%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Sodium orthophosphate, tribasic, 98% to my country?
Yes. Because Sodium orthophosphate, tribasic, 98% is classed as hazardous (UN 3262), it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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