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Dipotassium hydrogen phosphate trihydrate

Dipotassium hydrogen phosphate trihydrate Structure
Dipotassium hydrogen phosphate trihydrate structure
CAS No.
16788-57-1
Chemical Name:
Dipotassium hydrogen phosphate trihydrate
Synonyms
POTASSIUM HYDROGEN PHOSPHATE;Dipotassium Phosphate Trihydrate;KH2PO5;POTASSIUM PHOSPHATE 3H2O;PotassiumPhosphateDibasicAr;POTASSIUM PFAT 2BAS 3HYD XTL;di-Potassiumhydrogenphosphat;potassiumphosphate,trihydrate;Dibasic PotassiuM Phosphate (AS);Dipotassium Phosphate Trihydrtae
CBNumber:
CB4470368
Molecular Formula:
H7K2O7P
Molecular Weight:
228.22
MDL Number:
MFCD00149926
MOL File:
16788-57-1.mol
Last updated:2026-01-13 11:19:26
Product description Number Pack Size Price
Potassium phosphate dibasic trihydrate ReagentPlus , ≥99.0% P5504 1kg $243
di-Potassium hydrogen phosphate trihydrate for analysis EMSURE? 1.05099 250g $136
Potassium phosphate dibasic trihydrate puriss. p.a., ≥99.0% (T) 60349 250g $167
Potassium Phosphate, Dibasic, Trihydrate, Molecular Biology Grade - CAS 16788-57-1 - Calbiochem 529567-M 1kg $285
di-Potassium hydrogen phosphate trihydrate for analysis EMSURE? 1.05099 1kg $338
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Dipotassium hydrogen phosphate trihydrate Properties

Melting point 340°C(anhydrous substance),decomposes
bulk density 800kg/m3
storage temp. room temp
solubility H2O: 4 M at 20 °C, clear, colorless
pka 7.21
form Crystalline Powder
color White
PH 9.1-9.4 (25℃, 50mg/mL in H2O)
Water Solubility SOLUBLE
Sensitive Hygroscopic
Merck 14,7658
Stability Stable. Incompatible with strong oxidizing agents.
InChI 1S/2K.H3O4P.3H2O/c;;1-5(2,3)4;;;/h;;(H3,1,2,3,4);3*1H2/q2*+1;;;;/p-2
InChIKey XQGPKZUNMMFTAL-UHFFFAOYSA-L
SMILES O.O.O.[K+].[K+].OP([O-])([O-])=O
CAS DataBase Reference 16788-57-1(CAS DataBase Reference)
FDA UNII RJK174X3TZ
Absorption ≤0.01 at 260nm
≤0.01 at 280nm
UNSPSC Code 12352302
NACRES NA.25

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P301+P312-P302+P352-P304+P340-P305+P351+P338
Safety Statements  24/25
WGK Germany  3
TSCA  Yes
HS Code  28352400
Storage Class 13 - Non Combustible Solids
NFPA 704
0
1 0

Dipotassium hydrogen phosphate trihydrate price More Price(40)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich P5504 Potassium phosphate dibasic trihydrate ReagentPlus , ≥99.0% 16788-57-1 1kg $243 2025-07-31 Buy
Sigma-Aldrich 1.05099 di-Potassium hydrogen phosphate trihydrate for analysis EMSURE? 16788-57-1 250g $136 2025-07-31 Buy
Sigma-Aldrich 60349 Potassium phosphate dibasic trihydrate puriss. p.a., ≥99.0% (T) 16788-57-1 250g $167 2025-07-31 Buy
Sigma-Aldrich 529567-M Potassium Phosphate, Dibasic, Trihydrate, Molecular Biology Grade - CAS 16788-57-1 - Calbiochem 16788-57-1 1kg $285 2025-07-31 Buy
Sigma-Aldrich 1.05099 di-Potassium hydrogen phosphate trihydrate for analysis EMSURE? 16788-57-1 1kg $338 2025-07-31 Buy
Product number Packaging Price Buy
P5504 1kg $243 Buy
1.05099 250g $136 Buy
60349 250g $167 Buy
529567-M 1kg $285 Buy
1.05099 1kg $338 Buy

Dipotassium hydrogen phosphate trihydrate Chemical Properties,Uses,Production

Description

Dipotassium hydrogen phosphate trihydrate (K2HPO4•3H2O) is the dipotassium form of phosphoric acid, which can be highly soluble in water. It is widely applied in the fields of food, agriculture and molecular biology etc. It is commonly used as a food additive, involved in the formation of dairy creamers, dry powder beverages. In addition, as a source of phosphorus and potassium, it is allowed to be used as a electrolyte replenisher, providing minerals especially for athletes, which play an essential role in the recovery of muscles. It can also serves as a fertilizer to increase in rice grain yield. Besides, it has application in molecular biology and biochemistry, which is useful to increase the partition coefficients of amino acids in aqueous two-phase systems. Besides, It has been proved that Dipotassium hydrogen phosphate has radio-protective activity, which is able to block the uptake of the radioactive isotope P-32 upon oral administration.

References

https://en.wikipedia.org/wiki/Dipotassium_phosphate
https://www.alfa.com/zh-cn/catalog/011593/
https://www.exercise.com/supplements/dipotassium-phosphate
https://pubchem.ncbi.nlm.nih.gov/compound/Dipotassium_hydrogen_phosphate#section=Top

Chemical Properties

crystalline solid

Uses

Potassium hydrogen phosphate trihydrate is widely used to prepare buffer solutions in molecular biology, biochemistry and chromatography. It is involved in the production of trypticase soy agar and then utilized for culturing bacteria. As a food additive, it is used in dry powder beverages, mineral supplements and imitation dairy creamers. It is also used as a stabilizer for non-dairy coffee creamers. Further, it is a common source of phosphorous and potassium.

Application

Dipotassium hydrogen phosphate trihydrate can be used to:
As a corrosion inhibitor. Dipotassium hydrogen phosphate forms a passivation film on the metal in alkaline solutions with low chloride contamination, which slows down the corrosion of carbon steel[1].
As a catalyst. Dipotassium hydrogen phosphate powder catalyses the conversion of stable phosphoryl compounds to dialkyl (E, Z)-2-(1-acetyl-2-naphthalenyl)-2-butenedioate under thermal and microwave conditions in a solvent-free system[2].
As a reducing agent. Dipotassium hydrogen phosphate (K2HPO4.3H2O) was used for the efficient reduction of graphene oxide nanosheets. Dipotassium hydrogen phosphate itself and the prepared graphene are environmentally friendly and cheap[3].
As a nutrient. Used as a nutrient in antimicrobial media.

General Description

Potassium phosphate dibasic trihydrate (K2HPO4.3H2O, Dipotassium hydrogen phosphate trihydrate, Dipotassium phosphate, di-Potassium hydrogen phosphate trihydrate) is the potassium salt having a pH in the range of 9.1-9.4.

References

[1] A. MOHAGHEGHI; R. A. Corrosion inhibition of carbon steel by dipotassium hydrogen phosphate in alkaline solutions with low chloride contamination[J]. Construction and Building Materials, 2018. DOI:10.1016/j.conbuildmat.2018.07.181.
[2] A. SOULDOZI; N. N; A Ramazani. Dipotassium Hydrogen Phosphate Powder Catalyzed Stereoselective O-Vinylation of 1-(2-Hydroxy-1-naphthyl)-1-ethanone[J]. Phosphorus Sulfur and Silicon and The Related Elements, 2006. DOI:10.1080/10426500500326578.
[3] XINMENG ZHANG. Dipotassium hydrogen phosphate as reducing agent for the efficient reduction of graphene oxide nanosheets[J]. Journal of Colloid and Interface Science, 2013. DOI:10.1016/j.jcis.2013.07.021.

Dipotassium hydrogen phosphate trihydrate Preparation Products And Raw materials

Raw materials

Preparation Products

Dipotassium hydrogen phosphate trihydrate Suppliers

Global( 433)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Chuanghai Biotechnology Co., Ltd 		+8615350571055 Sibel@chuanghaibio.com China 8753 58
Hebei Yanxi Chemical Co., Ltd. 		+8618531123677 faithe@yan-xi.com China 5853 58
Changzhou Rokechem Technology Co., Ltd. 		18758118018 sales001@rokechem.com China 255 58
Jiangsu Kolod Food Ingredients Co.,Ltd. 		+8618805133257 sales3257@jskolod.com China 134 60
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21597 55
Shanghai Yingrui Biopharma Co., Ltd. 		+86-21-33585366 - 03@ sales03@shyrchem.com CHINA 738 60
Hefei TNJ Chemical Industry Co.,Ltd. 		+86-0551-65418679 +8618949832763 info@tnjchem.com China 2988 55
Shanghai Zheyan Biotech Co., Ltd. 		18017610038 zheyansh@163.com CHINA 3619 58
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29832 58
Henan Xiangtong Chemical Co., Ltd. 		86-371-61312303 info@hnxtchem.com CHINA 292 58
Supplier Advantage
Hebei Chuanghai Biotechnology Co., Ltd 		58
Hebei Yanxi Chemical Co., Ltd. 		58
Changzhou Rokechem Technology Co., Ltd. 		58
Jiangsu Kolod Food Ingredients Co.,Ltd. 		60
Henan Tianfu Chemical Co.,Ltd. 		55
Shanghai Yingrui Biopharma Co., Ltd. 		60
Hefei TNJ Chemical Industry Co.,Ltd. 		55
Shanghai Zheyan Biotech Co., Ltd. 		58
career henan chemical co 		58
Henan Xiangtong Chemical Co., Ltd. 		58

View Lastest Price from Dipotassium hydrogen phosphate trihydrate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Dipotassium hydrogen phosphate trihydrate pictures 2026-02-03 Dipotassium hydrogen phosphate trihydrate
16788-57-1
 US $0.00 / KG 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
Dipotassium hydrogen phosphate trihydrate pictures 2026-02-02 Dipotassium hydrogen phosphate trihydrate
16788-57-1
 US $1.00-1.00 / KG 1g 99% 50ton Shaanxi Dideu Medichem Co. Ltd
Dipotassium hydrogen phosphate trihydrate pictures 2026-01-30 Dipotassium hydrogen phosphate trihydrate
16788-57-1
 US $10.00 / KG 1KG 99% 100 mt Hebei Chuanghai Biotechnology Co., Ltd

Dipotassium hydrogen phosphate trihydrate Spectrum

Dipotassium hydrogen phosphate trihydrate(16788-57-1)IRDipotassium hydrogen phosphate trihydrate(16788-57-1)Raman

16788-57-1(Dipotassium hydrogen phosphate trihydrate)Related Search:

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