Hangzhou TongVo Chemicals Potassium tripolyphosphate (Technical grade)

Identification & Functionality

Chemical Family

Phosphates,

Potassium Salts

Chemical Name

Potassium Tripolyphosphate

Base Chemicals Functions

Corrosion Inhibitor,

Sequestering Agent

CAS No.

13845-36-8

EC No.

237-574-9

Technologies

Base Chemicals & Intermediates

Product Families

Base Chemicals & Intermediates — Technical Salts & Inorganics

Inorganics

Applications & Uses

Markets

Industrial

Applications

Industrial — Chemical & Industrial Manufacturing

Chemical Manufacturing

Applicable Processes

Soap Manufacturing

Base Chemicals End Uses

Marine Applications

Applications

Potassium Tripolyphosphate can form a protective film on the surface of iron, lead, zine, and other metals so as to prevent surface corroding. P₂O₇^4- has a strong dispersion ability to disperse finely distributed solid particles so that these fine and trace materials can mix evenly. Potassium Tripolyphosphate has stable pH buffering ability and keep solution pH value unchanged for a long time. Potassium Tripolyphosphate is used as a builder for soaps, detergents and especially liquid cleaning formulations.

Properties

Physical Form

Powder,

Solid

Appearance

white powder or granular

Typical Properties

	Value	Units	Test Method / Conditions
Molecular Weight	301.03	-	-
Assay (K5P3O10)	min. 95	%	-
pH Value (1% Solution)	9.2 - 10.1	-	-
P2O5	min. 46.5	%	-
K2O	min. 52	%	-
Fe	max. 0.01	%	-
As	max. 0.001	%	-
Heavy metal (as Pb)	max. 0.005	%	-
Cl	max. 0.1	%	-

Regulatory & Compliance

Grade

Food Grade,

Technical Grade

Technical Details & Test Data

Properties

Potassium Tripolyphosphate is sequestering agent (excellent sequestrant of calcium, magnesium and iron in food products). Potassium Tripolyphosphate is highly soluble in aqueous solutions with excellent dispersion properties. Potassium Tripolyphosphate is easy to dissolve in water with solubility of 178g, 194g, and 212g in 100 mL of water at 10°C, 25°C, and 50°C respectively. Potassium Tripolyphosphate has excellent chelating ability and can form stable chelates with Ca²⁺ and Mg²⁺ in hard water so as to soften hard water, increase cleaning ability, and remove dirt. The white precipitate formed from adding 13mL of 1% calcium nitrate solution into 100 mL of 1% potassium pyrophosphate solution can be rapidly chelated to produce a clear solution. 

Packaging & Availability

Packaging Type

Bags

Packing

25Kgs/bag, in woven or kraft paper bags with inner bag , or as customer's requirements.

Storage & Handling

Storage & Handling

Keep in cool dry place.

Air transportation: arranged as ordinary goods.

Shelf Life

12 months