Na2WO4 x 2 H2O

CHEBI:63939 chemically defined MAPPED CHEBI EXACT_MATCH

Ontology mapping

Primary identifier
CHEBI:63939
Ontology label
sodium tungstate dihydrate

Nutritional roles

Synonyms (25)

SynonymTypeSourceOccurrences
Role: Mineral source; Properties: Inorganic compound, Defined component, Simple component RAW_TEXT CultureMech
Na2WO4 . 2H2O HYDRATE_FORM kg_microbe
Na2WO4 x 2 H2O (0.1% w/v) HYDRATE_FORM kg_microbe
Na2WO4.2H2O HYDRATE_FORM kg_microbe
Na2WO4·2H2O HYDRATE_FORM kg_microbe
Na2WO4・2H2O HYDRATE_FORM kg_microbe
NaWO4·2H2O HYDRATE_FORM kg_microbe
Na-tungstate x 2 H2O HYDRATE_FORM unmapped_duplicate_review_2026_05_11
Sodium tungstate dihydrate EXACT_SYNONYM kg_microbe
Tungstic acid, sodium salt, dihydrate EXACT_SYNONYM kg_microbe
sodium orthotungstate dihydrate EXACT_SYNONYM kg_microbe
sodium tungstate(VI) dihydrate EXACT_SYNONYM kg_microbe
Na2WO4 × 2H2O HYDRATE_FORM kg_microbe_via_hydration_routing
Na2WO4*2H2O HYDRATE_FORM kg_microbe_via_hydration_routing
Role: Mineral source; Properties: Simple component, Defined component, Inorganic compound RAW_TEXT CultureMech
sodium dioxido(dioxo)tungsten--water (1/2) EXACT_SYNONYM chebi_synonym_review
Na2WO2 x 2 H2O RAW_TEXT merge_from_UNMAPPED_0474
Na2WO4•2H2O RAW_TEXT culturemech:output/ingredient_occurrences.tsv
Disodium tetraoxotungstate RAW_TEXT sssom_other_backfill
Na2WO2.2H2O RAW_TEXT sssom_other_backfill
Sodium tungstate(VI) RAW_TEXT sssom_other_backfill
Sodium tungsten oxide RAW_TEXT sssom_other_backfill
Sodium wolframate RAW_TEXT sssom_other_backfill
Tungstic acid, disodium salt RAW_TEXT sssom_other_backfill
sodium tetraoxotungstate(VI) RAW_TEXT sssom_other_backfill

Chemical properties

Cas rn
10213-10-2
Data source
PubChem (via CHEBI:63939)
Retrieval date
2026-04-09T00:32:50.689620+00:00
Molecular formula
2H2O.2Na.O4W
Inchi
InChI=1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
Smiles
O.O.[Na+].[Na+].[O]=[W](=[O])([O-])[O-]

Evidence (1)

DATABASE_MATCH via CultureMech

Imported from CultureMech pipeline, quality=DIRECT_MATCH

Occurrence statistics

Total occurrences
1,642
Distinct media
1,640

Curation history

TimestampCuratorActionNew statusChanges
2026-03-09T06:54:18.022301+00:00 import_from_culturemech IMPORTED MAPPED Initial import from CultureMech pipeline
2026-04-05T21:48:45.515071+00:00 fetch_cas_rn_from_culturebot_csv ADDED_CAS_RN MAPPED Added CAS-RN:10213-10-2 from CultureBotHT compounds_to_cas.csv (matched: Na2WO4·2H2O)
2026-04-07T10:20:11.394400+00:00 feba_ontology_enrichment_batch CREATED MAPPED Created ingredient file from FEBA ontology enrichment batch with ChEBI ID CHEBI:63939
2026-04-09T00:32:50.689620+00:00 enrich_mim_cas_rn_batch CAS_RN_ADDED MAPPED Added CAS-RN 10213-10-2 from PubChem (via CHEBI:63939)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 10 synonyms from kg-microbe P4.4 enrichment: Na2WO4 . 2H2O, Na2WO4 x 2 H2O (0.1% w/v), Na2WO4.2H2O, Na2WO4·2H2O, Na2WO4・2H2O, ... (5 more)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 10 synonyms from kg-microbe P4.4 enrichment: Na2WO4 . 2H2O, Na2WO4 x 2 H2O, Na2WO4 x 2 H2O (0.1% w/v), Na2WO4.2H2O, Na2WO4·2H2O, ... (5 more)
2026-04-18T00:00:00+00:00 cbclaw_kg_microbe_sweep LLM ADDED_SYNONYMS MAPPED Added 9 synonyms from kg-microbe P4.4 enrichment: Na2WO4 . 2H2O, Na2WO4 x 2 H2O, Na2WO4 x 2 H2O (0.1% w/v), Na2WO4.2H2O, Na2WO4・2H2O, ... (4 more)
2026-04-19T06:30:07.230267+00:00 audit_p44_hydration_routing ADDED_SYNONYMS_VIA_HYDRATION_ROUTING MAPPED Added 2 synonyms re-routed from anhydrous/hydrate sibling records (Na2wo42h2o.yaml): Na2WO4 × 2H2O, Na2WO4*2H2O
2026-04-19T06:30:07.230267+00:00 audit_p44_hydration_routing ADDED_SYNONYMS_VIA_HYDRATION_ROUTING MAPPED Added 2 synonyms re-routed from anhydrous/hydrate sibling records (Na2wo4_X_2_H2o.yaml): Na2WO4 × 2H2O, Na2WO4*2H2O
2026-04-19T07:23:20.785693+00:00 audit_mim_merge MERGED_FROM_DUPLICATES MAPPED Absorbed 2 duplicate MIM record(s) into this one: Sodium_tungstate_dihydrate.yaml, Na2wo42h2o.yaml. Synonyms, curation_history, and occurrence counts were unioned/summed; winner selected by highest occurrence count with preferred_term readability tie-break.
2026-05-01T07:35:35.313453+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (CHEBI primary)
2026-05-01T08:08:31.388338+00:00 auto_classify_ingredient_type AUTO_BACKFILL_CHEBI_CHEMISTRY molecular_formula=2H2O.2Na.O4W; inchi=InChI=1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-; smiles=O.O.[Na+].[Na+].[O]=[W](=[O])([O-])[O-]
2026-05-02T03:12:17.140355+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=SINGLE_INGREDIENT (chemical structure populated (molecular_formula))
2026-05-11T08:04:31Z mediaingredientmech-agentic-curation LLM MERGED_FROM_UNMAPPED_DUPLICATE MAPPED Absorbed duplicate unmapped record Na-tungstate_X_2_H2O.yaml (UNMAPPED_0464); local CHEBI:63939 sodium tungstate dihydrate representative already includes sodium tungstate dihydrate synonyms and chemistry.
2026-05-29T23:35:36.112260+00:00 extract_roles_from_synonyms ANNOTATED Added media role: MINERAL (confidence: 1.00)
2026-06-09T05:23:46.808599+00:00 correct_stale_ontology_labels.py CORRECTED ontology_label 'Na2WO4 x 2 H2O' -> 'sodium tungstate dihydrate': synced to canonical CHEBI label (preferred_term 'Na2WO4 x 2 H2O' unchanged).
2026-06-16T00:00:00+00:00 merge_duplicate_unmapped LLM MERGED_FROM_UNMAPPED_DUPLICATE MAPPED Absorbed duplicate UNMAPPED_0474 "Na2WO2 x 2 H2O". Edison deep research (literature) + MediaDive recipe context + local OAK CHEBI confirm this is a garbled spelling of 'Na2WO4 x 2 H2O' (already mapped to CHEBI:63939); promotion would PK-collide, so absorbed here as a synonym.
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): MINERAL -> nutritional_roles.TRACE_ELEMENT
2026-08-27T03:16:39.519516+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 167/1398 -> 1640/1642 (media_count/total_occurrences), derived from distinct CultureMech recipe ids in the #337 occurrence table. The prior values came from the importer retired in #453, whose media_count counted a list truncated to 50 examples (#449). [source=ingredient_occurrences.tsv culturemech_rev=15a4da5c08 rows=194137 distinct_recipes=15257]
2026-08-30T04:48:06.233536+00:00 claude_culturemech_alias_backfill ADDED_SYNONYMS Added 1 CultureMech recipe surface form(s) that folded onto this record's published label but were absent from MIM's label index, so CultureMech could not resolve them: 'Na2WO4•2H2O' (x1 CultureMech mentions). Source: culturemech:output/ingredient_occurrences.tsv.
2026-09-02T17:40:44.716277+00:00 claude_sssom_surface_form_backfill ADDED_SYNONYMS Recovered 1 surface form(s) that the published SSSOM `other` carried but no curated record did, so a rebuild would have dropped them from KGX: 'Disodium tetraoxotungstate'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).
2026-09-02T22:41:49.137449+00:00 claude_sssom_surface_form_backfill ADDED_SYNONYMS Recovered 6 surface form(s) that the published SSSOM `other` carried but no curated record did, so a rebuild would have dropped them from KGX: 'Na2WO2.2H2O'; 'Sodium tungstate(VI)'; 'Sodium tungsten oxide'; 'Sodium wolframate'; 'Tungstic acid, disodium salt'; 'sodium tetraoxotungstate(VI)'. Tokens already present on the kg-microbe ontology node were left out as redundant (#520).