Potassium Phosphate Monobasic CAS#7778-77-0

Potassium Phosphate Monobasic CAS#7778-77-0

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.


Phone :+86 15966245583
WhatsApp :+86 15966245583
Email :admin@kaiviochem.com
Get a quote
product description

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.

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)
Quality Control Lab
实验室
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. Why Supply Chain Transparency Matters in Global Chemical Procurement
Chemical buyers evaluate more than price and delivery time. Clear specifications, matching batch documents, consistent packaging information, and traceable logistics all affect customs clearance, warehouse inspection, and production use.
When selecting a supplier, buyers should review how the company confirms specifications, manages documents, handles changes, and responds to problems. Transparent processes help reduce order risks and improve long-term procurement reliability.


2. Seven Essential Details for a Chemical Product Inquiry
A product name alone is often insufficient for an accurate quotation. Buyers should provide the product name and CAS number, key specifications or purity, final application, required quantity, packaging requirements, destination, and expected delivery time or preferred Incoterms.
If COA, SDS, TDS, special labels, certifications, or registration documents are required, these details should also be included in the initial inquiry. Complete information helps suppliers confirm product, logistics, and documentation conditions more efficiently.


3. What Are the Differences Between COA, SDS, and TDS?
A COA is a batch-specific Certificate of Analysis showing test items, required ranges, and actual results. It is mainly used for quality verification and incoming inspection.
An SDS provides safety, handling, storage, emergency, and transportation information. A TDS describes typical product properties, technical parameters, and application guidance. Buyers should confirm the required document version, language, and applicable standards before placing an order.


4. Key Conditions to Confirm Before International Chemical Transportation
Before shipment, confirm the product identity, physical form, transport classification, and applicable regulations. An SDS is an important reference, but the final shipping arrangement must also meet regulatory and carrier requirements.
Packaging, sealing, moisture protection, palletizing, labels, ports, documents, Incoterms, and transport schedules should be clearly confirmed. Early verification helps prevent delays caused by carrier restrictions or incomplete documentation.


5. How to Evaluate Chemical Product Sample Test Results
Sample evaluation should consider both product compliance and application performance. Laboratory results do not always guarantee the same performance in every formulation or production process.
Before testing, record the sample batch, COA, storage condition, and sampling method. During application tests, keep consistent records of formulation, dosage, process conditions, and results. After approval, reconfirm the formal order specifications, inspection method, packaging, and batch documents.

Contact Us
Submit Sourcing Inquiry & Request Sample
Recommendation