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
DSP;ADSP;PH=7;DSPD;DSPA;acetest;FEMA 2398;sodaphosphate;femanumber2398.;natriumphosphat
CBNumber
CB1242667
Molecular Formula
HNa2O4P
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)
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℃)
Water Solubility 
>=10 g/100 mL at 20 ºC
λmax
λ: 260 nm Amax: 0.019
λ: 280 nm Amax: 0.016
Sensitive 
Hygroscopic
Merck 
14,8659
Stability:
Stable. Incompatible with strong acids. Hygroscopic.
InChIKey
BNIILDVGGAEEIG-UHFFFAOYSA-L
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
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
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
250 g
Price
$45.69
Updated
2021/03/22
Sigma-Aldrich
Product number
94046
Product name
Sodium phosphate dibasic solution
Purity
BioUltra, 0.5?M in H2O
Packaging
100 mL
Price
$52.3
Updated
2021/03/22
Sigma-Aldrich
Product number
04276
Product name
Sodium phosphate dibasic
Purity
puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E 339, anhydrous, 98-100.5% (calc. to the dried substance)
Packaging
1kg
Price
$93
Updated
2020/08/18
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
500 g
Price
$68.91
Updated
2021/03/22
Sigma-Aldrich
Product number
1.06559
Product name
di-Sodium hydrogen phosphate anhydrous
Purity
for analysis particle size about 0.2-1 mm (~18-80 mesh ASTM) EMSURE?
Packaging
500 g
Price
$120.25
Updated
2021/03/22
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

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.

Chemical Properties

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

Chemical Properties

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

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 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.

Uses

It is used in pH buffer solutions.

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

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.

More
Less

Sodium Phosphate, Dibasic Suppliers

Spectrum Chemical Manufacturing Corp.
Tel
021-67601398-809
Fax
021-57711696
Email
marketing_china@spectrumchemical.com;
Country
China
ProdList
9686
Advantage
60
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
021-20337333-801
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
24980
Advantage
65
VWR(Shanghai) Co., Ltd
Tel
400-821-8006
Fax
+86-21-58558801
Email
info_china@vwr.com
Country
China
ProdList
3044
Advantage
75
Beijing Minruida Technology Co., Ltd.
Tel
010-82387566-
Fax
82387566-801
Email
sales@mreda.com.cn
Country
China
ProdList
21368
Advantage
58
Chengdu XiYa Chemical Technology Co., Ltd.
Tel
;
Fax
0539-6365991
Email
sale@xiyashiji.com;3007716753@qq.com
Country
China
ProdList
10578
Advantage
57
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
21-61259100-
Fax
86-21-61259102
Email
sh@meryer.com
Country
China
ProdList
40264
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15877
Advantage
69
Alfa Aesar
Tel
400-610-6006; 021-67582000
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30159
Advantage
84
Beijing dtftchem Technology Co., Ltd.
Tel
010-60275820-
Fax
010-60270825
Email
elainezt@sina.com
Country
China
ProdList
1401
Advantage
62
More
Less

View Lastest Price from Sodium Phosphate, Dibasic manufacturers

Hebei Crovell Biotech Co Ltd
Product
Disodium Phosphate Dodecahydrate 7558-79-4
Price
US $10.00/Kg/Drum
Min. Order
1KG
Purity
98%
Supply Ability
10 ton
Release date
2021-07-20
Jiangsu Kolod Food Ingredients Co.,Ltd.
Product
Disodium Phosphate 7558-79-4
Price
US $0.00/Kg/Bag
Min. Order
25Kg/Bag
Purity
99.0%
Supply Ability
200 tons
Release date
2021-11-01
Wuhan Monad Medicine Tech Co.,LTD
Product
Dibasic Sodium Phosphate 7558-79-4
Price
US $10.00/KG
Min. Order
1KG
Purity
99.99%
Supply Ability
20 tons/month
Release date
2021-04-16

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


  • 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)