Products

The Right Chemicals for Your Applications

Potassium Phosphate Monobasic CAS#7778-77-0

Potassium Phosphate Monobasic CAS#7778-77-0

Basic Information

Potassium Phosphate Monobasic
white crystalline powder or colorless crystals

Potassium phosphate monobasic is a white crystalline phosphate that dissolves readily in water to give a weakly acidic solution and is insoluble in ethanol. Its stable composition and buffering capacity support pH control and nutrient delivery. It is used in buffer solutions, food and feed formulations, agricultural phosphorus-potassium fertilizers, pharmaceutical excipients, water treatment, and electronic-industry processes.

Can't Find The Product You Need?

Tell Us Your Product Requirements, Specifications And Target Industry, Our Professional Team Will Reply You Within 24 Hours.

Chat Now
Chat Now
product description

Stable physical and chemical properties: High purity and mild performance, stable at room temperature without decomposition and deterioration.


Excellent solubility: Fast water solubility with clear solution, suitable for various proportioning.


Superior buffering capacity: Effectively stabilizes system pH for formulation deployment.


Standard storage & operation: Store sealed and dry, operate with dust protection, avoid mixing with strong oxidants.


Product Description of Potassium Phosphate Monobasic CAS#7778-77-0

Potassium Phosphate Monobasic is a high-quality inorganic phosphate raw material. It appears as white crystalline powder or colorless crystals with no odor and salty taste. It is easily soluble in water and the aqueous solution is weakly acidic, while insoluble in ethanol. With stable physical and chemical properties, high purity and few impurities, it is a widely used fine chemical and agricultural basic raw material.


Product Application of Potassium Phosphate Monobasic CAS#7778-77-0

Potassium Phosphate Monobasic is mainly used as pH buffer, nutritional supplement, food additive, feed additive and industrial auxiliary agent. It is widely applied in agriculture as an efficient phosphorus-potassium compound fertilizer to promote crop growth, in food industry for pH adjustment and taste improvement, and in feed industry to supplement essential nutrients. It is also used in chemical buffer solution preparation, pharmaceutical excipients, water treatment and electronic industry.

Product Specifications

Parameters


Melting point

252.6 °C (lit.)

Boiling point

> 450 °C

bulk density

1200kg/m3

density

2.338 g/mL at 25 °C (lit.)

vapor pressure

0Pa at 25℃

refractive index

1.4864

storage temp.

Store at +5°C to +30°C.

solubility

H2O: 1.5 M at 20 °C, clear, colorless

form

powder

color

White transparent

Specific Gravity

2.338

Odor

Odorless

PH

4.2-4.6 (20g/l, H2O, 20℃)

pka

(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)

biological source

rabbit

Water Solubility

222 g/L (20 ºC)

Sensitive

Hygroscopic

λmax

λ: 260 nm Amax: 0.046


λ: 280 nm Amax: 0.040

Decomposition

253 °C

Merck

147,659

Specific Activity

25-33nmol/min·mg

Stability:

Hygroscopic

Cosmetics Ingredients Functions

BUFFERING

InChI

1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

InChIKey

GNSKLFRGEWLPPA-UHFFFAOYSA-M

SMILES

[K+].OP(O)([O-])=O

CAS DataBase Reference

7778-77-0(CAS DataBase Reference)

EPA Substance Registry System

Monopotassium phosphate (7778-77-0)

Absorption

≤0.01 at 260nm


≤0.01 at 280nm


Safety Information


Hazard Codes


WGK Germany

WGK 1

RTECS

TC6615500

TSCA

TSCA listed

HS Code

2835240000

Storage Class

11 - Combustible Solids

Hazardous Substances Data

7778-77-0(Hazardous Substances Data)

Toxicity

LD50 skin in rabbit: > 4640mg/kg


Factory Showcase
拼图_美图设计室-(1)
Shipping And Transportation

Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

拼图_美图设计室
FAQ

1. What products does Shandong Junzheng Chemical supply?
We supply inorganic chemicals, organic solvents, water treatment chemicals, and surfactants, including calcium chloride, soda ash, sodium bicarbonate, caustic soda, citric acid, ethyl acetate, and SLES. Please contact us to confirm specific product availability.


2. Which industries do your products serve?
Our products serve pharmaceutical, agrochemical, dye, rubber, construction, coal processing, and other chemical industries. Product suitability depends on the required grade, specifications, and application.


3. How can I get a quotation?
Please provide the product name, CAS number, required specifications, quantity, packaging requirements, and destination port. These details help us prepare an accurate quotation.


4. How do you control product quality?
We follow strict quality testing procedures supported by technical personnel, research equipment, and an established management system. Specific quality requirements can be confirmed before placing an order.


5. Can you help me select a suitable chemical?
Yes. Our technical team can assist with product selection based on your application and required specifications. Please share your intended use and key technical requirements.

Contact Us
Submit
Recommendation