FAQ: 1-Hydroxyethylidene-1,1-Diphosphonic Acid

Question 1

What is 1-Hydroxyethylidene-1,1-Diphosphonic Acid?

Accepted Answer

1-Hydroxyethylidene-1,1-Diphosphonic Acid is a chemical product listing on XCHEMI (https://www.xchemi.com), offered by China National Chemical Construction Anhui Co. for international B2B procurement. The CAS Registry Number shown on this listing is 2809-21-4. Specifications on this page are provided by the supplier; confirm critical attributes before purchase.

Question 2

What is the CAS number for this listing?

Accepted Answer

This XCHEMI product page lists CAS 2809-21-4 for 1-Hydroxyethylidene-1,1-Diphosphonic Acid. CAS numbers help align chemical identity across suppliers and regions. Always verify identity, grade, and impurity profile with supplier documentation (e.g., COA) before use in regulated processes.

Question 3

How can I request a quotation or buy 1-Hydroxyethylidene-1,1-Diphosphonic Acid?

Accepted Answer

Use the XCHEMI marketplace actions on this listing (https://www.xchemi.com/product/986102804568574916.html) to contact China National Chemical Construction Anhui Co. and request a quotation (RFQ). Offer price and currency—when shown—come from the supplier listing and may vary by quantity and shipping terms.

Question 4

What purity, grade, and packaging are listed?

Accepted Answer

Appearance: white 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID.

Question 5

How should chemicals be stored and handled?

Accepted Answer

Follow supplier SDS / label instructions, local regulations, and your site safety program. XCHEMI is a B2B marketplace; obtain current SDS and handling guidance from China National Chemical Construction Anhui Co. before receipt, storage, or use.

Question 6

What are typical applications for 1-Hydroxyethylidene-1,1-Diphosphonic Acid?

Accepted Answer

Applications depend on industry segment and process requirements. Use this listing as a sourcing lead and validate fitness-for-purpose with China National Chemical Construction Anhui Co. for your intended use (e.g., synthesis, formulation, manufacturing).

Question 7

Is a safety data sheet (SDS / MSDS) available?

Accepted Answer

Request SDS/MSDS and regulatory documents from China National Chemical Construction Anhui Co. through XCHEMI quotation or supplier contact. Marketplace summaries do not replace official safety documentation.

Question 8

Who is the seller for this product on XCHEMI?

Accepted Answer

China National Chemical Construction Anhui Co. is identified as the seller on this listing. You can open the supplier storefront from this page when available to review company profile and other listed chemicals.

1-Hydroxyethylidene-1,1-Diphosphonic Acid

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