Sodium Salt of Hylene Triamine Penta (Methylene Phosphonic Acid) CAS 68155-78-2 22042-96-2 DTPMP•Na7

DTPMP·Na7 can be used as a scale inhibitor, a high-efficiency chelating agent, and an excellent BaSO4 scale inhibitor. DTPMP·Na7 is widely used in cooling water treatment, a stabilizer for peroxide bleaching, a detergent aid, municipal industrial clean water, geothermal water treatment, and oil field scale inhibition.

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Model:
68155-78-2
Brand:
futurechemical
Code:
68155-78-2

Product Description

Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid)

(DTPMP·Na7)

CAS No.68155-78-2 (7-Na),22042-96-2 (x-Na)

Molecular formula:C₉H₂₁O₁₅N₃P₅Na₇

Relative molecular mass:727

Structural formula:

二乙烯三胺五甲叉膦酸七钠（DTPMP·Na7）结构式

1. Performance and use:

2. Technical indicators

Item	Indicator
Appearance	Reddish brown liquid	Reddish brown transparent liquid
Active ingredient（DTPMPA）/%	31.5～33.5	24.0～26.0
Active ingredient（DTPMPA·Na₇）/%	40.0～42.5	30.5～33.0
Total phosphorus content（PO₄^3-）/%	--	19.7～21.7
pH（1%Aqueous solution）	7.0～9.0	7.0～9.0
Density（20℃）/g·cm^-3	≥1.25	1.24～1.34
Chloride(Cl^-) /%	≤5.0	≤5.0
Fe /mg·L^-1	≤20.0	≤20.0

3. Packaging and storage

DTPMP·Na7 is packed in plastic barrels, 25Kg or 250Kg per barrel, which can also be determined according to user needs. Store in a cool place indoors, the storage period is ten months.

4. Safety protection

DTPMP·Na7, pay attention to labor protection when handling, avoid contact with skin, eyes, etc., rinse with plenty of water after contact.

Related keywords：

Water treatment chemicals

Water treatment manufacturer

China Quality Supplier

Organic phosphonate

Corrosion inhibitor

Scale inhibitors and dispersant

Sodium Salt of Hylene Triamine Penta (Methylene Phosphonic Acid) CAS 68155-78-2 C9H29N3NaO15P5 DTPMP•Na7 22042-96-2

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.