Commercial · PVA 1799
Published 2026 · Ningxia Dadi PVA technical desk
Sourcing Dadi PVA 098-20 TDS MSDS COA should not mean chasing documents for a week. Ours ride with the quote.
Dadi PVA 098-20 is a 98 mol% hydrolysis grade. The sections below cover the commercial detail buyers actually ask about before they order.
| Brand | Dadi (export brand: Ningxia Dadi) |
|---|---|
| Grade / Model | 098-20 |
| Product | Polyvinyl Alcohol (PVA) |
| Degree of hydrolysis | 98 mol% |
| Avg. polymerization (DP) | by viscosity band (export code) |
| Viscosity (4% aq., 20C) | 18.0-22.0 mPa.s |
| Solubility | fully hydrolyzed |
| China-market code | 1799 |
| CAS / HS code | 9002-89-5 / 39053000 |
| Appearance | white flake, granule or powder |
| Purity | ≥93.0% (grade dependent) |
| pH (4% sol.) | 5-7 |
What the TDS covers
Hydrolysis 98 mol%, viscosity (4% aq., 20C), volatiles, ash, pH, purity, solubility (fully hydrolyzed), appearance, packing. Essentially the spec table on this page, in formal format.
Documents we provide
Every Ningxia Dadi 098-20 inquiry gets EN TDS (technical data sheet), MSDS (safety) and COA (certificate of analysis for the specific lot) at no charge.
What the COA proves
The COA is lot-specific: it records the actual test values from the retained sample, not a generic range. That is what your QC will check against.
From the floor
A Middle-East adhesive maker clears incoming QC in under a day because our COA numbers match their spec windows batch after batch.
FAQ
Is the COA per lot or generic?
Per-lot, pulled from the retained sample for that specific batch.
Are the documents in English?
Yes — EN TDS/MSDS/COA as standard; other languages on request.
Quality & documents (trust signals)
Every lot tested on Shimadzu GC-2014C / Agilent AOC-20 GC and Brookfield DV2T viscometer; batch sample kept to expiry. EN TDS, MSDS, COA provided. REACH and ISO 9001 status available on request [verify against current certificate].
Packaging, MOQ & lead time
25 kg PP woven bag (inner PE); jumbo bag on request. MOQ from 1 MT for stock grades, 16 MT for full container; lead time 7-15 days ex-works Ningxia. Incoterms FOB/CFR/CIF; payment T/T or L/C.
About the supplier
Ningxia Dadi Circulation Development Co., Ltd. (PVA branch since 2009; Phase I 50,000 t + Phase II 80,000 t; ~585 staff; ABB robotic palletizing; Shimadzu GC-2014C + Agilent AOC-20 gas chromatographs + Brookfield DV2T viscometer for QC; named a national first-batch green manufacturing demonstration enterprise in 2017; calcium-carbide to VAM to PVA circular chain.
Written by Li Wei, Senior Technical Sales Engineer, Polyvinyl Alcohol Division — Ningxia Dadi Circulation Development Co., Ltd. - 9 years placing PVA grades with textile, adhesive and construction compounders across Southeast Asia, the Middle East and South America. Replies to most inquiries within one business day.
Get a quote / sample / documents
Send grade 098-20, quantity, destination port and incoterm and we return a firm quote, free 500 g sample and EN TDS/MSDS/COA the same business day.
