Sodium Tripolyphosphate/STPP as Water Softener and Buffering Agent in Detergent Industry

• Customization: Available
• CAS No.: 7758-29-4
• Formula: Na5p3o10
• Model NO.: stpp 94%
• EINECS: 231-838-7
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: 94% Min
• Type: Sodium Tripolyphosphate
• Grade Standard: Tech Grade and Food Grade
• Product Name: Sodium Tripolyphosphate 94%
• Na5p3o10 (%): 94min
• Appearance: White Powder
• Molecular Formula: Na5p3o10
• Grade: Industrial & Food Grade
• Sample: Available
• Other Name: STPP 94%
• Usage: Ceramic, Detergent, Soap, Washing Powder, etc.
• pH: 9.9-10.7
• Molecular Weight: 265.90
• P2o5 %: 57 Min
• Na5p3o10 %: 94 Min
• Tech Grae Insolubles in Water %: 0.15 Max
• Function: Auxiliaries Detergent
• Shelf Life: One Year
• Transport Package: 25kg Net Bag or Jumbo Bag
• Specification: 25kg/bag, 1000kg/bag, or 1200kg/bag
• Trademark: Premtec
• Origin: China
• HS Code: 2835319000
• Production Capacity: 60, 000 Mt Per Year

Product Description

Sodium Tripoly Phosphate/STPP 94%

Product Description

1. Product description: 
  STPP is white powder, apparent density:0.35-0.90g/ml, melting point: 622°C, easily dissolving in water; water solution is alkaline(PH value of 1% solution is 9.7); can hydrolyze into phosphate in water, has good ability in complexing metal ions,; can be used to soften water; has some surfactant properties.
 

 

Product Parameters

 

Item	Tech Grade	Food Grade
Na5P3O10 (%):	94Min	94.0Min
P2O5 (%):	57Min	57.0Min
Insolubles in water (%):	0.15Max	0.05Max
Fe (%):	0.015Max	0.007Max
Ph (1% solution):	9.2-10	9.5-10.0
Heavy Metal (As Pb) (%):	N	0.001Max
As (%):	N	0.0003Max
Fluoride(F) (%):	N	0.003Max
Whiteness(%):	90Min	90Min
Density (g/cm3)	0.35-0.9	0.35-0.9
Itype content (%)	10-30	10-30

 

Application

2. Application Field of Sodium Tripolyphosphate:

For industrial grade: Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather
pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide,
calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyze, also used in
epuration of petroleum product, gum latex storage, as dispersant, solvent in metal industry.



 

Packaging & Shipping

3. Packing and storage:
Packing: 25Kg double inner plastic and outer knitting bag or ton bag.
Shipping: within 7 days after order confirmed
For small quantity sample or order, we can ship by courier like DHL, Fedex door to door.
For large quantity, Air or Sea both are available, as customized.
Storage: The product shall be stored in a clean, dry & cool area protected from exposure to moisture, foreign odors and other contaminants. Due to its strong hygroscopic properties, it shall be stored in a dry & cool area.



4. Our service: 
Flexible Payment
We can supply flexible payment term according to customer required. 
Quality Guarantee
Our QC department strictly control the product quality, and the logistic department control every aspect during the shipment. 
Tracking anytime 
All the document and cargo information will supplied on time.


 

FAQ

5. FAQ:
Free samples for evaluation
The charge of samples postage will be reduced from the first order.
Payment: TT, LC
Partial Shipment is allowed