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Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Specifications
Brand Name :
Riel Chemical
Model Number :
96%
Certification :
SGS,ISO9001,CE
Place of Origin :
Weifang
MOQ :
1 ton
Price :
USD 600/TONS FOB
Payment Terms :
L/C,T/T
Supply Ability :
50 tons per day
Delivery Time :
5 work day
Packaging Details :
25 kg polyethylene woven bag, moisture-proof, easy to transport
CAS :
7758-29-4
EINECS :
231-838-7
Appearance :
White powder
Crystalline hydrate :
No Water crystals
Life spen :
Two years
Stats :
Chemical materials
PH :
9~10
Description
25kg Per Bag CAS 7758-29-4 Sodium Tripolyphosphate STPP For Water Treatment
Product Specifications
Attribute Value
CAS 7758-29-4
EINECS 231-838-7
Appearance White powder
Crystalline hydrate No Water crystals
Life span Two years
Status Chemical materials
PH 9~10
Technical Specifications
Molecular formula: Na5P3O10
Molecular weight: 367.86
Industrial Grade Specifications (GB/T 9983-2004 Standard)
Parameter Standard Value
Main content: sodium tripolyphosphate ≥ 96.0%
Phosphorus pentoxide P2O5 ≤ 57.0%
Water insoluble ≤ 0.10%
Fluoride (as F) ≤ 0.007%
Ph Value (1%) 9.2-10.0
Whiteness ≥ 90
Food Grade Specifications (QB 1034-1991 Standard)
Parameter Standard Value
Main content: sodium tripolyphosphate ≥ 95.0%
Phosphorus pentoxide P2O5 ≤ 57.0%
Water insoluble ≤ 0.05%
Fluoride (as F) ≤ 0.003%
Heavy metal (as Pb) ≤ 0.001%
Arsenic (as As) ≤ 0.0003%
Sulphate (as SO4) ≤ 0.4%
Chlorine (as Cl) ≤ 0.025%
Ph Value (1%) 9.5-10.0
Whiteness ≥ 85
References: Riel Chemical Lab1&2, National public service platform for standards information.
Performance Characteristics
  • White granular or powder with density of 0.35-0.90 g/cm³ and melting point of 622°C
  • Easily soluble in water with alkaline aqueous solution (pH 9.7 for 1% solution)
  • Gradually hydrolyzes into phosphite in water with excellent metal ion complexation ability
  • Forms soluble complexes with calcium, magnesium, iron and other metal ions
  • Acts as an inorganic surfactant with properties similar to organic surfactants
Applications
  • Synthetic detergent additive and soap agent to prevent grease precipitation and frosting
  • Strong emulsifying effect on lubricating oil and fat
  • Industrial water softener for tanning, pre-tanning, and dyeing processes
  • Dispersant for paints, kaolin, magnesium oxide, calcium carbonate, and drilling mud
  • Anti-oil agent in paper industry
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Applications
Primary Functions in Water Treatment
  • Scale inhibitor: Chelates calcium and magnesium ions to prevent scaling in boilers and cooling systems
  • Corrosion inhibitor: Forms protective film on metal surfaces to slow corrosion
  • Dispersant: Prevents particle deposition in industrial circulating water and RO membrane pretreatment
Advantages and Limitations
Advantages:
  • Cost-effective solution with strong chelating capability
  • Effective for medium and low hardness water
  • Combines corrosion inhibition and dispersion effects
Limitations:
  • Environmental concerns due to phosphorus content (restricted in some regions)
  • Effectiveness decreases above 80°C due to decomposition
  • Requires precise dosage control to avoid residue issues
Recommended Usage Scenarios
  • Recommended for: Industrial cooling systems, small boiler water treatment, wastewater pretreatment
  • Not recommended for: Areas with strict phosphorus bans, high-temperature (>80°C) systems, drinking water (unless food-grade)
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Frequently Asked Questions
What is your payment term?
We accept T/T and L/C at sight as payment terms.
Are you able to deliver on time?
Yes, we specialize in this product line with many years of experience. Our customers choose us for reliable on-time delivery and consistent top quality.
Do you provide free samples?
Yes, we provide free samples with the customer responsible for express shipping fees.
How about the price? Can you make it cheaper?
Customer benefit is our top priority. Prices are negotiable based on order conditions, and we guarantee competitive pricing.
Can I visit your company and factory in China?
You are welcome to visit our facility in Weifang, China. We provide airport pickup and drop-off services at Weifang Airport.
What if there is a quality problem?
Our professional after-sales team promptly addresses all quality concerns to ensure complete customer satisfaction.
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Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS

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Product Detail
Brand Name :
Riel Chemical
Model Number :
96%
Certification :
SGS,ISO9001,CE
Place of Origin :
Weifang
MOQ :
1 ton
Price :
USD 600/TONS FOB
Contact Supplier
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS
Water Treatment Sodium Tripolyphosphate STPP 25kg 7758-29-4 CAS

Riel Chemical Co., Ltd.

Verified Supplier
1 Years
shandong, weifang
Since 2005
Business Type :
Manufacturer, Exporter
Main Products :
Thiourea, Thiourea Chemical, Trisodium Phosphate
Total Annual :
4500000-5000000
Employee Number :
120~200
Certification Level :
Verified Supplier
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