Technical Data Sheet (TDS)

Use a product-page TDS download where available, or ask H2Q for the current, grade-specific version. Review identity, typical properties and application information. Typical values are not automatically a contractual specification. For example, review the HEDP specifications to identify the liquid or powder reference grade and content-reporting basis relevant to your request.

Safety Data Sheet (SDS)

Contact H2Q to obtain the SDS for the actual product and intended destination, including during supplier qualification. SDS files are supplied through direct contact rather than public downloads; your handling and compliance team should review the applicable version. For DTPMP sodium salt documents, identify the required salt and neutralization degree. Discuss grade-specific identification and any earlier SDS needs through the HPMA document-review options to confirm chemical identity.

Certificate of Analysis (COA)

A COA relates to a particular batch and its reported test results. A sample COA illustrates the format; it is not proof of a future shipment’s results.

A useful document request

Tell us the product name, grade or specification, destination and which documents your approval process requires. H2Q INC. handles customer service, quotations and contracts; Jiyuan Qingyuan Water Treatment Co., Ltd. handles manufacturing, R&D and export procedures. Your document requirements can be reviewed against the proposed product and order. Use the HEDP technical-document request options when preparing an HEDP review.

Match the identity before comparing documents

Check the full chemical name, CAS number where available, supplied form and grade across the TDS, SDS and COA. Keep the applicable document version with your qualification record. A file receipt date is not necessarily its revision date, and a shared abbreviation does not establish that two documents describe the same material.

Four product-document checks

HPMA — hydrolyzed polymaleic anhydride, CAS 26099-09-2. Review the current HPMA liquid TDS. Request the viscosity test temperature and method before comparing grades; the density measurement temperature does not supply the missing viscosity condition.

PAA / QSYW1000 — polyacrylic acid, CAS 9003-01-4. Request documents for the QSYW1000 liquid grade. Do not transfer limits from another acrylic-polymer grade.

DTPMP disodium salt, CAS 22042-96-2. Match the disodium salt of diethylenetriamine penta(methylene phosphonic acid) to the DTPMP·Na₂ reference documents. Other neutralization levels need their own specifications.

HEDP — 1-hydroxyethylidene-1,1-diphosphonic acid, CAS 2809-21-4. Select the liquid or crystal-powder TDS for the form you need. Keep active-acid and monohydrate reporting bases distinct; the specification comparison guide explains the difference.