Phosphonates & salts
Amino tri(methylene phosphonic acid)
CAS 6419-19-8
ATMP, amino tri(methylene phosphonic acid) (CAS 6419-19-8), is used for calcium-carbonate scale control and metal-ion chelation. The manufacturer lists liquid and crystal-powder forms; the reference TDS below covers liquid at 48.0–52.0% active acid. H2Q INC. handles U.S. sales, customer service, quotations and contracts. Request grade-specific documents and supply terms for your quantity and destination.
Liquid reference grade · 48.0–52.0% active acid
Source: Jiyuan Qingyuan manufacturer TDS — ATMP. Routine manufacturer TDS supplied to H2Q on 28 October 2026. This is the receipt date, not a printed revision number. Confirm the selected grade and relevant batch COA before purchase.
The specification below applies to the liquid reference grade. Crystal-powder requirements need a separate specification.
| Parameter | Reference specification |
|---|---|
| Appearance | Colorless to pale yellow clear liquid |
| Active acid | 48.0–52.0 % |
| Chloride as Cl⁻ | ≤ 1.0 % |
| pH1% solution at 20°C | ≤ 2.0 |
| Density20°C | ≥ 1.330 g/cm³ |
| Iron as Fe | ≤ 35.0 ppm |
| Colour (Hazen) | ≤ 50 |
Options and storage information listed in the manufacturer reference.
12 months
Indoors in a shaded, dry place, as stated in the manufacturer reference.
Confirm the current grade, packaging, storage period and supply terms for your order.
Specify the preferred form and active-content requirement when requesting a grade.
Product identity and overview: Qingyuan official ATMP product page . Confirm the current grade-specific documents for your application.
FOR U.S. PROCUREMENT TEAMS
Comparing ATMP supplier options? Start with the exact grade, your application and delivery requirements.
H2Q INC. handles U.S. sales, customer service, quotations and sales contracts. Jiyuan Qingyuan Water Treatment Co., Ltd., China, handles manufacturing, research and development, and export procedures. Tell H2Q your grade and destination so we can review the order requirements.
H2Q’s role and business contact · Manufacturer information and evidence
Specify the supplied form, exact grade, content reporting basis and impurity limits that your purchasing specification requires. State your trial quantity or recurring demand, with units. Minimum order quantity is confirmed individually for the grade, package and destination; there is no single minimum across this catalog.
Review ATMP specifications. The reference tables do not establish current availability or an accepted order quantity.
ATMP shipments are dispatched from China.
Give your required delivery date, destination city and state, ZIP code or receiving port, and preferred delivery terms. H2Q confirms lead time, packaging, transport arrangements and delivery terms for each order in the quotation and sales contract. Qingyuan handles export procedures; import responsibilities must be agreed for the destination.
Availability and delivery timing are confirmed for the specific order; this page does not indicate U.S. inventory.
The manufacturer lists these reference packaging options for ATMP:
Review ATMP packaging and storage. Ask for confirmation of the package, labeling and shipping arrangement for your grade and destination. Confirm the package net weight in your quotation.
PLAN YOUR PRODUCT REVIEW
Compare the exact product and grade against your requirements before agreeing supply terms.
Also searched as: ATMP · ATMPA · Amino tri(methylene phosphonic acid)
When reviewing ATMP for calcium carbonate scale control, describe the system, water chemistry and existing treatment program. State the scale-control result your team needs to evaluate.
For a formulation that requires metal-ion chelation, identify the ATMP acid or salt form specified by your team. Include the other ingredients and compatibility checks needed for your finished formulation.
For an oilfield-water inquiry, describe the water composition, deposits and other treatment chemicals in use. This context helps focus the review on the required product identity, specification and qualification tests.
Compare the current TDS coverage, chemical identities and content-reporting bases before preparing your purchasing specification. Document and grade differences do not establish interchangeable application performance.
Use the TDS for product review, the SDS for handling and regulatory review, and a relevant COA for batch-level checks.
Request ATMP documentsThe liquid reference on this page lists 48.0–52.0% active acid, pH no higher than 2.0 in a 1% solution at 20°C, and density of at least 1.330 g/cm³ at 20°C. These values do not describe the crystal-powder form. Specify your form and acceptance criteria, then confirm the current TDS. Acid and salt forms are different product identities.
Use a product-page TDS download where available, or request the current version for the grade under review. Contact H2Q for the SDS matching your product and destination, including during supplier qualification. A COA must correspond to the relevant batch; a general product page is not a batch certificate.
Include the required form, specification, quantity, packaging requirements and destination. Add your application and target timing where known. Availability and commercial terms must be confirmed in the quotation.
CONTINUE EXPLORING
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