Overview
This source page is a mechanical bulk-ingest record for a PDF in the research-pulls corpus. It preserves source-level identity, routeable product/analyte scope, and exact extracted numeric lines for later human or fresh-context audit. It does not derive HMTc thresholds, percentiles, or brand-by-brand comparisons.
Key numbers
The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:
- arsenate; hydrogen bonding. arranged in the form of layers lying parallel to (010). Strong hydrogen bonds
- (range of O O distances 2.500 (3)–2.643 (3) Å) between adjacent H2AsO4
- of the anions (X = As, mean of 1.69 Å; X = P, mean of 1.55 Å),
- atoms are depicted with displacement ellipsoids at the 97% probability following values: The degree of lattice distortion (S), i.e. the
-
- Structural commentary arithmetic mean (dav) of the distances of all atom pairs is
- Na(H2AsO4) comprises two Na+ cations and two tetrahedral Table 2
- (mean 1.659 (8) Å) and two longer As—(OH) bonds As/P2—O6 1.663 (2) 1.523 (1)
- tetrahedra are arranged in layers lying parallel to (010) with
- 0.1108 Å; the measure of similarity () (Bergerhoff et al., Table 3
- 65%wt) was partly neutralized with diluted NaOH solution Crystal size (mm) 0.12 0.08 0.01
- are summarized in Table 3. Starting coordinates and labelling Refinement
Methods (brief)
- Calvo, 1973), Na(AsO3) (Liebau, 1956) and Na5(AsO5) (Haas
- (dmax.), i.e. the maximal displacement between the atomic
- Bruker (2016). APEX3 and SAINT. Bruker AXS Inc., Madison, Haas, H. & Jansen, M. (2001). Z. Anorg. Allg. Chem. 627, 1013–
Implications
This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.
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Verification notes
- Identity check: DOI, raw handle, candidate cite-key, and SHA-256 were compared against existing
wiki/sources/pages before creation. - Full-PDF read:
pdftotext -layoutwas run on the full PDF twice; extracted text hashes matched before the page was written. - Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
- Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
- HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.
Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.