ChemicalBook > CAS DataBase List > Sodium Phosphate, Dibasic

Sodium Phosphate, Dibasic

Product Name
Sodium Phosphate, Dibasic
CAS No.
7558-79-4
Chemical Name
Sodium Phosphate, Dibasic
Synonyms
DISODIUM PHOSPHATE;DSP;DISODIUM HYDROGEN PHOSPHATE;DIBASIC SODIUM PHOSPHATE;DSPA;DISODIUM PHOSPHATE DIHYDRATE;BUFFER SOLUTION;Sodium phosphate dibasic anhydrous;SODIUM HYDROGENPHOSPHATE;SODIUM MONOHYDROGEN PHOSPHATE
CBNumber
CB1242667
Molecular Formula
Na2HPO4
Formula Weight
141.96
MOL File
7558-79-4.mol
More
Less

Sodium Phosphate, Dibasic Property

Melting point:
243-245 °C
Density 
1.064 g/mL at 20 °C
vapor density 
4.9 (vs air)
vapor pressure 
0Pa at 20℃
FEMA 
2398 | DISODIUM PHOSPHATE
storage temp. 
Store at +5°C to +30°C.
solubility 
H2O: 0.5 M at 20 °C, clear, colorless
form 
powder
color 
White
PH
8.9-9.2 (25℃, 50g/L in water)
pka
(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
Odor
odorless
Water Solubility 
>=10 g/100 mL at 20 ºC
Sensitive 
Hygroscopic
λmax
λ: 260 nm Amax: 0.019
λ: 280 nm Amax: 0.016
Merck 
14,8659
Stability:
Stable. Incompatible with strong acids. Hygroscopic.
InChIKey
BNIILDVGGAEEIG-UHFFFAOYSA-L
LogP
-2.15
CAS DataBase Reference
7558-79-4(CAS DataBase Reference)
EPA Substance Registry System
Disodium phosphate (7558-79-4)
More
Less

Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-24/25
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
3
RTECS 
WC4500000
F 
3
TSCA 
Yes
HS Code 
28352200
Hazardous Substances Data
7558-79-4(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 2000 mg/kg
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
94046
Product name
Sodium phosphate dibasic solution
Purity
BioUltra, 0.5?M in H2O
Packaging
100mL
Price
$64.9
Updated
2024/03/01
Sigma-Aldrich
Product number
NIST2186II
Product name
Disodium hydrogen phosphate
Purity
NISTSRM2186II
Packaging
30g
Price
$947
Updated
2024/03/01
Sigma-Aldrich
Product number
94046
Product name
Sodium phosphate dibasic solution
Purity
BioUltra, 0.5?M in H2O
Packaging
500mL
Price
$196
Updated
2024/03/01
Sigma-Aldrich
Product number
567550
Product name
Sodium Phosphate, Dibasic - CAS 7558-79-4 - Calbiochem
Purity
ACS Reagent Grade. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.
Packaging
500g
Price
$97
Updated
2024/03/01
Sigma-Aldrich
Product number
567547
Product name
Sodium Phosphate, Dibasic, Molecular Biology Grade - CAS 7558-79-4 - Calbiochem
Purity
Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.
Packaging
250g
Price
$63.3
Updated
2024/03/01
More
Less

Sodium Phosphate, Dibasic Chemical Properties,Usage,Production

Description

Sodium phosphate dibasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers. It is commonly used in biological assay buffers. Sodium is required for nerve and muscle functioning. Sodium Phosphate Dibasic can be used as a dietary supplement and as a nutrient. Sodium hydrogen phosphate is used in food and water treatment in conjunction with trisodium phosphate.In foods, it is used to adjust pH. In water treatment, It retards calcium scale formation. It is also found in some detergents and cleaning agents. This product is known to be Used in many applications including the purification of antibodies. It is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.

Chemical Properties

Disodium phosphate is anhydrous or contains two molecules of water of hydration

Chemical Properties

Sodium hydrogen phosphate,NaH2P04·H20, is hygroscopic, transparent, water-soluble crystals. Used as a purgative, reagent,and buffer.

Chemical Properties

The anhydrous compound is white crystalline powder; hygroscopic; density 1.70 g/cm3; converts to sodium pyrophosphate at 240°C; soluble in water; 874 SODIUM PHOSPHATE, DIBASIC insoluble in alcohol. The dihydrate is a crystalline powder or granular solid; density 2.066 g/cm3 at 15°C; loses water of crystallization at 92.5°C. The heptahydrate is a powdered or granular crystalline solid; density 1.679 g/cm3; loses five molecules of water at 48°C. The dodecahydrate is made up of translucent crystals or granules; density 1.524 g/cm3; readily loses five water molecules on exposure to air at ambient temperature; melts at 35°C when the salt contains all water of crystallization; loses all water at 100°C. All the hydrates are soluble in water and insoluble in alcohol.

Physical properties

The anhydrous compound is white crystalline powder; hygroscopic; density 1.70 g/cm3; converts to sodium pyrophosphate at 240°C; soluble in water;insoluble in alcohol.
The dihydrate is a crystalline powder or granular solid; density 2.066 g/cm3 at 15°C; loses water of crystallization at 92.5°C.
The heptahydrate is a powdered or granular crystalline solid; density 1.679 g/cm3; loses five molecules of water at 48°C.
The dodecahydrate is made up of translucent crystals or granules; density 1.524 g/cm3; readily loses five water molecules on exposure to air at ambient temperature; melts at 35°C when the salt contains all water of crystallization; loses all water at 100°C.
All the hydrates are soluble in water and insoluble in alcohol.

Occurrence

Disodium phosphate is anhydrous or contains two molecules of water of hydration

Uses

Sodium Phosphate Dibasic is used as an in conjunction with trisodium phosphate in foods and water treatment. In foods, it is used to adjust pH. In water treatment, It retards calcium scale formation. It is also found in some detergents and cleaning agents. Sodium Phosphate Dibasic is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.

Uses

It is used in pH buffer solutions.

Uses

Sodium Phosphate, Dibasic is used as a laboratory reagent and a buffer in chemical analysis. Other uses are in manufacturing ceramics, detergents, and enamels; as a mordant in dyeing; for fireproofing paper and wood; for weighting and printing silk; in the treatment of boiler water; as a sequestrant in food; as a dietary supplement; in soldering enamels; and in fertilizers. It is used therapeutically as a cathartic.

Definition

ChEBI: Disodium hydrogenphosphate is a sodium phosphate.

Preparation

Dibasic sodium phosphate is prepared by treating phosphoric acid with a slight excess of sodium carbonate. The solution is boiled to expel carbon dioxide. Upon cooling dodecahydrate crystallizes out. Heating dodecahydrate at 100°C forms the anhydrous salt.
H3PO4 + Na2CO3 → Na2HPO4 + CO2 + H2O
Dibasic sodium phosphate also is prepared by reacting dibasic calcium phosphate with sodium carbonate. The product calcium carbonate precipitates leaving dibasic sodium salt in the solution. The solution on cooling yields crystals of hydrated product.
CaHPO4 + Na2CO3 → CaCO3 + Na2HPO4

General Description

Sodium phosphate dibasic in combination with sodium phosphate monobasic is used in the preparation of oral sodium phosphate solution (OSPS), which is a purgative used for bowel cleansing before colonoscopy.

Flammability and Explosibility

Non flammable

Biochem/physiol Actions

Sodium phosphate dibasic is an important component of running buffer of denaturing gel electrophoresis. It induces glomerular calcification as well as other nephrotic syndrome in Sprague-Dawley rats.

Safety Profile

Poison by intravenous route. Moderately toxic by intraperitoneal, subcutaneous, and intramuscular routes. Mildly toxic by ingestion. A skin and eye irritant. When heated to decomposition it emits toxic fumes of POx and Na2O. See also PHOSPHATES.

Purification Methods

Crystallise the salt twice from warm water, by cooling. Dry in air, then in an oven overnight at 130o. It should be dried before use as it is slightly hygroscopic. It forms di-, hepta-and deca-hydrates.

Sodium Phosphate, Dibasic Preparation Products And Raw materials

Raw materials

Sodium phosphate dibasic dodecahydrate N-(Isoxazol-5-yl)sulphanilamide Phosphoric acid Sodium hydroxide White phosphorus Phosphorus Sulfuric acid Sodium carbonate

Preparation Products

Tartrazine Sodium phosphite ribonucleic acid for injection Penetrating agent 5881D Pigment Fast Rose Toner a new super water absorbent resin 1,2-EPOXYCYCLODODECANE Fosfomycin Flour improver Diethyl malonate
More
Less

Sodium Phosphate, Dibasic Suppliers

Belgium 2 Brazil 1 Canada 1 China 500 Czech 1 Europe 3 France 2 Germany 7 India 47 Japan 4 Mexico 1 Slovakia 1 South Korea 1 Switzerland 1 United Kingdom 13 United States 70 USA 1 Global 656
TargetMol Chemicals Inc.
Tel
+1-781-999-5354 +1-00000000000
Email
marketing@targetmol.com
Country
United States
ProdList
32161
Advantage
58
Alfa Chemistry
Tel
Fax
1-516-927-0118
Email
Info@alfa-chemistry.com
Country
United States
ProdList
24072
Advantage
58
Protheragen-ING
Tel
+16313385890
Email
info@protheragen-ing.com
Country
United States
ProdList
3868
Advantage
58
Aladdin Scientific
Tel
+1-+1(833)-552-7181
Email
sales@aladdinsci.com
Country
United States
ProdList
52924
Advantage
58
Aladdin Scientific
Tel
+1-+1(833)-552-7181
Email
sales@aladdinsci.com
Country
United States
ProdList
57505
Advantage
58
ApexBio Technology
Tel
--
Fax
--
Email
sales@apexbt.com
Country
United States
ProdList
6251
Advantage
58
United States Biological
Tel
--
Fax
--
Email
sales@advtechind.com
Country
United States
ProdList
6075
Advantage
58
Alfa Chemistry
Tel
--
Fax
--
Email
info@Alfa-Chemistry.com
Country
United States
ProdList
6814
Advantage
0
CarboMer, Inc.
Tel
--
Fax
--
Email
sales@carbomer.com
Country
United States
ProdList
4026
Advantage
67
National Biochemicals Corp.
Tel
--
Fax
--
Email
sales@nationalbiochem.com
Country
United States
ProdList
295
Advantage
0
Cater Chemicals Corp.
Tel
--
Fax
--
Email
info@caterchem.com
Country
United States
ProdList
229
Advantage
58
Barker Industries, Inc.
Tel
--
Fax
--
Email
sales@barkerind.com
Country
United States
ProdList
226
Advantage
51
United States Biological
Tel
--
Fax
--
Email
chemicals@usbio.net
Country
United States
ProdList
6214
Advantage
80
American International Chemical, Inc.
Tel
--
Fax
--
Email
info@aicma.com
Country
United States
ProdList
531
Advantage
58
ECSA Chemicals
Tel
--
Fax
--
Email
marketing@ecsa.ch
Country
United States
ProdList
1735
Advantage
58
Glentham Life Sciences Ltd
Tel
--
Fax
--
Email
info@glentham.com
Country
United States
ProdList
2026
Advantage
58
Penta International Corporation
Tel
--
Fax
--
Email
lisaa@pentamfg.com
Country
United States
ProdList
5042
Advantage
58
JOST CHEMICAL CO
Tel
--
Fax
--
Email
sales@jostinternational.com
Country
United States
ProdList
16
Advantage
58
GFS Chemicals Inc
Tel
--
Fax
--
Email
service@gfschemicals.com
Country
United States
ProdList
2328
Advantage
58
Strem Chemicals, Inc.
Tel
--
Fax
--
Email
info@strem.com
Country
United States
ProdList
4910
Advantage
86
Riedel-de Haen AG
Tel
--
Fax
--
Country
United States
ProdList
6773
Advantage
87
Advance Research Chemicals, Inc.
Tel
--
Fax
--
Email
sales@fluoridearc.com
Country
United States
ProdList
297
Advantage
60
Santa Cruz Biotechnology, Inc.
Tel
--
Fax
--
Email
scbt@scbt.com
Country
United States
ProdList
3597
Advantage
60
AK Scientific, Inc.
Tel
--
Fax
--
Email
sales@aksci.com
Country
United States
ProdList
6347
Advantage
65
Alfa Aesar
Tel
--
Fax
--
Email
tech@alfa.com
Country
United States
ProdList
6814
Advantage
81
Sisco Research Laboratories Pvt. Ltd.
Tel
--
Fax
--
Email
srlmarketing@dishnetdsl.net
Country
United States
ProdList
1905
Advantage
64
Penta Manufacturing Company
Tel
--
Fax
--
Email
sales@pentamfg.com
Country
United States
ProdList
5076
Advantage
65
Chem-Impex International, Inc.
Tel
--
Fax
--
Country
United States
ProdList
6730
Advantage
64
ProChem, Inc.
Tel
--
Fax
--
Email
prochem1@aol.com
Country
United States
ProdList
1691
Advantage
66
Advanced Synthesis Technologies
Tel
--
Fax
--
Email
sales@advancedsynthesis.com
Country
United States
ProdList
4775
Advantage
61
Charkit Chemical Corporation
Tel
--
Fax
--
Email
sales@charkit.com
Country
United States
ProdList
2993
Advantage
65
Naugra Export
Tel
--
Fax
--
Country
United States
ProdList
1332
Advantage
47
Aditya Birla Chemicals
Tel
--
Fax
--
Email
chlor-alkalimktg@adityabirla.com
Country
United States
ProdList
11
Advantage
30
HONEST JOY HOLDINGS LIMITED
Tel
--
Fax
--
Email
sales@honestjoy.cn
Country
United States
ProdList
6675
Advantage
54
Advance Scientific & Chemical
Tel
--
Fax
--
Email
sales@advance-scientific.com
Country
United States
ProdList
6419
Advantage
71
2A PharmaChem USA
Tel
--
Fax
--
Email
sales@2apharmachem.com
Country
United States
ProdList
6137
Advantage
39
City Chemical LLC
Tel
--
Fax
--
Email
sales@citychemical.com
Country
United States
ProdList
6708
Advantage
72
3B Scientific Corporation
Tel
--
Fax
--
Email
sales@3bsc.com
Country
United States
ProdList
6718
Advantage
47
www.vwrsp.com
Tel
--
Fax
--
Email
B2B@VWR.com
Country
United States
ProdList
622
Advantage
86
TimTec Corporation
Tel
--
Fax
--
Country
United States
ProdList
1945
Advantage
58
Structure Probe, Inc.
Tel
--
Fax
--
Email
spi3spi@2spi.com
Country
United States
ProdList
269
Advantage
82
Wintersun Chemical
Tel
--
Fax
--
Email
purchasing@wintersunchem.com
Country
United States
ProdList
776
Advantage
68
Leonid Chemicals Private Limited
Tel
--
Fax
--
Email
careers@leonidchemicals.com
Country
United States
ProdList
1700
Advantage
43
Parchem Trading Ltd.
Tel
--
Fax
--
Email
info@parchem.com
Country
United States
ProdList
794
Advantage
76
Parchem Trading Ltd.
Tel
--
Fax
--
Email
info@par-chem.com
Country
United States
ProdList
740
Advantage
66
P.d.fine chem
Tel
--
Fax
--
Country
United States
ProdList
59
Advantage
43
Research Organics, Inc.
Tel
--
Fax
--
Email
hr@resorg.com
Country
United States
ProdList
187
Advantage
76
Lab Express
Tel
--
Fax
--
Email
sales@labexpress.com
Country
United States
ProdList
1577
Advantage
67
Loba Chemie Pvt. Ltd.
Tel
--
Fax
--
Country
United States
ProdList
1945
Advantage
71
American Bioanalytical
Tel
--
Fax
--
Email
wenli@smith.edu
Country
United States
ProdList
167
Advantage
69
More
Less

View Lastest Price from Sodium Phosphate, Dibasic manufacturers

Hebei Andu Technology Com.,Ltd
Product
Sodium Phosphate 7558-79-4
Price
US $3.60/kg
Min. Order
1kg
Purity
≥99%
Supply Ability
3000tons/month
Release date
2024-07-30
Shaanxi Dideu Medichem Co. Ltd
Product
Sodium Phosphate, Dibasic 7558-79-4
Price
US $1.00-1.00/KG
Min. Order
1g
Purity
99%
Supply Ability
50ton
Release date
2020-05-20
Hebei Longbang Technology Co., Ltd
Product
Sodium Phosphate, Dibasic 7558-79-4
Price
US $6.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20TONS
Release date
2024-05-15

7558-79-4, Sodium Phosphate, DibasicRelated Search:

Trisodium phosphate Potassium Phosphate Monobasic FERRIC PHOSPHATE Sodium Phosphate Monobasic Monohydrate Hydrogen Calcium phosphate Ethylenediaminetetraacetic acid disodium salt Ammonium dihydrogen phosphate Zinc phosphate Creatine phosphate Sodium phosphate monobasic Sodium Monofluorophosphate Ammonium phosphate dibasic Potassium Phosphate Dibasic Potassium phosphate tribasic CERIUM(III) CHLORIDE Calcium silicate Calcium chloride Dibasic Sodium Phosphate Sodium Hydrogenphosphate Sodium Phosphate Dibasic Anhydrous

  • SODIUM PHOSPHATE, DIBASIC ANHYDROUS, TECHNICAL
  • SODIUM PHOSPHATE, DIBASIC BIO-REFINED
  • Sodiumhydrogenphosphate,99+%(ACS)
  • buffer solution from di-sodium hydrogen phosphate
  • sodium hydrogen phosphate, anhydrous, acs
  • sodium phosphate dibasic solution
  • DIBASICSODIUMPHOSPHATE,DRIED,USP
  • SODIUMPHOSPHATE,DIBASIC,ANHYDROUS,BIOTECHGRADE
  • SODIUMPHOSPHATE,DIBASIC,ANHYDROUS,FCC
  • DISODIUMANDTRISODIUMPHOSPHATESUPPLEMENT
  • SODIUMDIBASICPHOSPHATE
  • DISODIUMMONOPHOSPHATE
  • DINATRIUMHYDROGENPHOSPHATE
  • SODIUM HYDROGEN PHOSPHATE (ACS)
  • DI-SODIUM HYDROGEN PHOSPHATE ANHYDROUS USP, BP, PH EUR
  • DI-SODIUM HYDROGEN PHOSPHATE R. G., BUFF ER SUBSTANCE, REAG. ACS
  • SODIUM PHOSPHATE DIBASIC ANHYDROUS POWDER FCC
  • SODIUM PHOSPHATE DIBASIC DRIED POWDER USP/NF
  • Sodium phophate, dibasic
  • CREATINE ESTER SODIUM PHOSPHATE
  • Disodium hydrogen phosphate, anhydrous, 98+%
  • "Sodium hydrogen phosphate, anhydrous/ 98+%"
  • "Sodium hydrogen phosphate, anhydrous/ 99+%/ ACS"
  • EMPROVE(R) di-SodiuM Hydrogen Phosphate, Anhydrous, USP, BP, Ph Eur
  • SodiuM Phosphate Dibasic, Dried, USP, EP
  • SodiuM Phosphate Dibasic, Reagent, ACS
  • ADSP
  • SodiuM phosphate, dibasic, anhydrous, for analysis, 99+% 100GR
  • SodiuM phosphate, dibasic, anhydrous, for analysis, 99+% 500GR
  • SodiuM phosphate, dibasic, suitable for buffer solutions, for analysis ACS, 99+% 500GR
  • DIBASIC SODIUM PHOSPHATE
  • DINATRII PHOSPHAS DIHYDRICUS
  • DINATRII PHOSPHAS ANHYDRICUS
  • DISODIUM PHOSHATE
  • DISODIUM PHOSPHATE DIHYDRATE
  • DISODIUM PHOSPHATE
  • DI-SODIUM HYDROGEN ORTHOPHOSPHATE
  • DI-SODIUM HYDROGEN ORTHOPHOSPHATE 2H2O
  • acetest
  • disodiumacidorthophosphate
  • disodiumacidphosphate
  • di-Sodiumhydrogenphosphate,a
  • disodiumhydrophosphate
  • disodiumorthophosphate
  • disodiumphosphate,anhydrous
  • disodiumphosphoricacid
  • exsiccatedsodiumphosphate
  • femanumber2398.
  • natriumphosphat
  • orthophosphatedisodique
  • phosphateofsoda
  • sodaphosphate
  • sodiummonohydrogenorthophosphate
  • sodiummonohydrogenphosphate(2:1:1)
  • sodiumorthophosphate,secondary
  • sodiumphosphate(na2hpo4)
  • sodiumphosphatedibasic(sodium
  • sodiumphosphatedibasic(sodiumhydrogenphosphate)