cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.543y7r
title: Occurrence Download

description: A dataset containing 275362 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pavo cristatus Linnaeus, 1758"
 ]
}

 The dataset includes 275362 records from 198 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0363260-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc112020869
title: Cuneiform Tablet 1913.14.1501, Spurlock 1913.14.1501

description: [Text Description:] Administrative tablet ❧ [Text or Publication Number Note:] Spurlock 1913.14.1501; CDLI P421353 ❧ [Medium:] Clay ❧ [Script Note:] Non-Alphabetic Cuneiform ❧ [Physical Object Description:] Yellowish White (10YR 9/1.5) Grayish Reddish Orange (10R 5/6) Medium Gray (N 6/ 30.0% R) ❧ [Physical Object Note:] 6.8 x 4.8 x 2 cm (61g)
DOI: 10.15468/dl.437aqy
title: Occurrence Download

description: A dataset containing 1916 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Batrachochytrium dendrobatidis Longcore, Pessier & D.K.Nichols"
 ]
}

 The dataset includes 1916 records from 26 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0180088-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rekwfw
title: Occurrence Download

description: A dataset containing 201 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Munida tenuimana G.O.Sars, 1872",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "HasGeospatialIssue is false",
 "DecimalLatitude is greater than -90",
 "DecimalLongitude is greater than -180",
 "Year is less than or equal to 2014",
 "Year is greater than or equal to 1850"
 ]
}

 The dataset includes 201 records from 21 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0290747-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hgk43c
title: Occurrence Download

description: A dataset containing 4192 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Mollusca",
 "DatasetKey is Merseyside BioBank (unverified)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Geometry POLYGON ((-25.03991 31.75, 41.65954 31.75, 41.65954 71.53037, -25.03991 71.53037, -25.03991 31.75))"
 ]
}

 The dataset includes 4192 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0214549-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.h4krce
title: Occurrence Download

description: A dataset containing 3980 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pavo muticus Linnaeus, 1766"
 ]
}

 The dataset includes 3980 records from 63 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0363272-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc112020824
title: Cuneiform Tablet 1913.14.1501, Spurlock 1913.14.1501

description: [Text Description:] Administrative tablet ❧ [Text or Publication Number Note:] Spurlock 1913.14.1501; CDLI P421353 ❧ [Medium:] Clay ❧ [Script Note:] Non-Alphabetic Cuneiform ❧ [Physical Object Description:] Yellowish White (10YR 9/1.5) Grayish Reddish Orange (10R 5/6) Medium Gray (N 6/ 30.0% R) ❧ [Physical Object Note:] 6.8 x 4.8 x 2 cm (61g)
DOI: 10.15468/dl.y6zaqu
title: Occurrence Download

description: A dataset containing 89220 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Acer rubrum L.",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 89220 records from 211 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0297640-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc112020738
title: Cuneiform Tablet 1913.14.1501, Spurlock 1913.14.1501

description: [Text Description:] Administrative tablet ❧ [Text or Publication Number Note:] Spurlock 1913.14.1501; CDLI P421353 ❧ [Medium:] Clay ❧ [Script Note:] Non-Alphabetic Cuneiform ❧ [Physical Object Description:] Yellowish White (10YR 9/1.5) Grayish Reddish Orange (10R 5/6) Medium Gray (N 6/ 30.0% R) ❧ [Physical Object Note:] 6.8 x 4.8 x 2 cm (61g)
DOI: 10.15468/dl.62jhph
title: Occurrence Download

description: A dataset containing 765 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cotesia glomerata (Linnaeus, 1758)"
 ]
}

 The dataset includes 765 records from 44 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0275178-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7ay9bf
title: Occurrence Download

description: A dataset containing 13 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Mollusca",
 "DatasetKey is Invasive Non-Native Species",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Geometry POLYGON ((-25.03991 31.75, 41.65954 31.75, 41.65954 71.53037, -25.03991 71.53037, -25.03991 31.75))"
 ]
}

 The dataset includes 13 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0214543-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.m2sx6x
title: Occurrence Download

description: A dataset containing 329584 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Coturnix coturnix (Linnaeus, 1758)"
 ]
}

 The dataset includes 329584 records from 744 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0363290-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc112020799
title: Cuneiform Tablet 1913.14.1501, Spurlock 1913.14.1501

description: [Text Description:] Administrative tablet ❧ [Text or Publication Number Note:] Spurlock 1913.14.1501; CDLI P421353 ❧ [Medium:] Clay ❧ [Script Note:] Non-Alphabetic Cuneiform ❧ [Physical Object Description:] Yellowish White (10YR 9/1.5) Grayish Reddish Orange (10R 5/6) Medium Gray (N 6/ 30.0% R) ❧ [Physical Object Note:] 6.8 x 4.8 x 2 cm (61g)
DOI: 10.15468/dl.cm326s
title: Occurrence Download

description: A dataset containing 813050 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Anas superciliosa J.F.Gmelin, 1789)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 813050 records from 98 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0296047-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc112020887
title: Cuneiform Tablet 1913.14.1501, Spurlock 1913.14.1501

description: [Text Description:] Administrative tablet ❧ [Text or Publication Number Note:] Spurlock 1913.14.1501; CDLI P421353 ❧ [Medium:] Clay ❧ [Script Note:] Non-Alphabetic Cuneiform ❧ [Physical Object Description:] Yellowish White (10YR 9/1.5) Grayish Reddish Orange (10R 5/6) Medium Gray (N 6/ 30.0% R) ❧ [Physical Object Note:] 6.8 x 4.8 x 2 cm (61g)
DOI: 10.15468/dl.4a5uq9
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Maxillaria gymnochila Kraenzl."
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032395-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bvk8fe
title: Occurrence Download

description: A dataset containing 2111 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Mollusca",
 "DatasetKey is Shropshire Ecological Data Network database",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Geometry POLYGON ((-25.03991 31.75, 41.65954 31.75, 41.65954 71.53037, -25.03991 71.53037, -25.03991 31.75))"
 ]
}

 The dataset includes 2111 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0214544-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vuzjjv
title: Occurrence Download

description: A dataset containing 5619 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Argusianus argus (Linnaeus, 1766)"
 ]
}

 The dataset includes 5619 records from 70 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0363273-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc112020843
title: Cuneiform Tablet 1913.14.1501, Spurlock 1913.14.1501

description: [Text Description:] Administrative tablet ❧ [Text or Publication Number Note:] Spurlock 1913.14.1501; CDLI P421353 ❧ [Medium:] Clay ❧ [Script Note:] Non-Alphabetic Cuneiform ❧ [Physical Object Description:] Yellowish White (10YR 9/1.5) Grayish Reddish Orange (10R 5/6) Medium Gray (N 6/ 30.0% R) ❧ [Physical Object Note:] 6.8 x 4.8 x 2 cm (61g)
DOI: 10.15468/dl.be29cj
title: Occurrence Download

description: A dataset containing 79392 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Hippophae rhamnoides L.)",
 "HasCoordinate is true",
 "Geometry POLYGON ((25.280527 74.385866, 34 74.516506, 34 35.773364,\n 32.861584 35.588421, 26.375071 34.609982, 22.816449 34.504241, 13.627633 36.690862,\n 10.001544 38.719154, -0.356862 36.404548, -9.323257 35.627079, -12.292937 57.408982,\n 25.280527 74.385866))"
 ]
}

 The dataset includes 79392 records from 431 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032424-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/qcc-qlk-323
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/a5r-nlz-d0n
title: Halacsya sendtneri (Boiss.) Dörfl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/x75-dp6-asp
title: Brunellia stenoptera Diels

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.15468/dl.vgre4f
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Dicerorhinus sumatrensis (G.Fischer, 1814))",
 "Country is one of (Bermuda, Canada, Greenland, Saint Pierre and Miquelon, United States of America)"
 ]
}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0112792-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/5wq-zs9-yr2
title: Heliotropium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/pe3-jra-bkr
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/2rg-qm3-jq7
title: Anchusa azurea Mill.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/shh-vg2-a8a
title: Bourreria microphylla Griseb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/nl7-qzy-acs
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/5g5-zac-634
title: Alkanna galilaea Boiss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/wye-w58-lh1
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/n5r-7xn-6rc
title: Heliotropium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/yms-43q-n3b
title: Anchusa strigosa Banks & Sol.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xe1-esg-eff
title: Aristolochia rotunda L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/y4y-714-lh4
title: Paracynoglossum bottae (Deflers) R. R. Mill & A. G. Mill.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/9nh-w1q-121
title: Buglossoides arvensis subsp. sibthorpianum (Griseb.) R. Fern.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ete-2w5-flr
title: Halacsya sendtneri (Boiss.) Dörfl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/g6s-vt2-676
title: Cordia crenata subsp. crenata

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/bba-5er-yr8
title: Heliotropium indicum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/n6f-4kz-txd
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/gzd-q0v-yw4
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ja3-hk9-t8n
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/0n1-21r-3cx
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/gbc-f2l-a3r
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/68j-25z-sp2
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/82t-8c5-7mn
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/9pz-53g-91g
title: Bourreria succulenta Jacq.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.15468/dl.ed7eqk
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Dicerorhinus sumatrensis (G.Fischer, 1814))",
 "Country is one of (Anguilla, Antigua and Barbuda, Argentina, Aruba, Bahamas, Barbados, Belize, Bolivia (Plurinational State of), Bonaire, Sint Eustatius and Saba, Bouvet Island, Brazil, Cayman Islands, Chile, Colombia, Costa Rica, Cuba, Curaçao, Dominica, Dominican Republic, Ecuador, El Salvador, Falkland Islands (Malvinas), French Guiana, Grenada, Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Jamaica, Martinique, Mexico, Montserrat, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Saint Barthélemy, Saint Kitts and Nevis, Saint Lucia, Saint Martin (French part), Saint Vincent and the Grenadines, Sint Maarten (Dutch part), South Georgia and the South Sandwich Islands, Suriname, Trinidad and Tobago, Turks and Caicos Islands, Uruguay, Venezuela (Bolivarian Republic of), Virgin Islands (British), Virgin Islands (U.S.))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0112794-250525065834625/datasets/export for details.
DOI: 10.3535/4a9-xt5-nf0
title: Heliotropium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/t0v-0hg-7kh
title: Handroanthus pulcherrimus (Sandwith) S. O. Grose

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/y86-dkj-c5q
title: Heliotropium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/5sc-4xw-hg4
title: Vincetoxicum hirundinaria Medik.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/7dm-yre-zvd
title: Heliotropium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.15468/dl.avt9yd
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Acanthospermum hispidum DC.",
 "Country is Papua New Guinea",
 "HasCoordinate is true"
 ]
}

 The dataset includes 3 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0112795-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/4b2-dfz-p71
title: Echiochilon chazaliei (H. Boissieu) I. M. Johnst.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/bpx-xc1-dvt
title: Impatiens hochstetteri Warb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/rcg-by4-1x9
title: Heliotropium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/22r-wll-x5l
title: Impatiens hochstetteri Warb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ppy-q8t-v5a
title: Metastelma linearifolium A. Rich.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/gfq-4ka-zf4
title: Impatiens hochstetteri Warb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/bxy-ktr-80z
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/sqa-9av-zn2
title: Gonolobus Michx.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ked-x9c-98m
title: Boraginaceae Juss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/p1w-yne-fpf
title: Aristolochia sempervirens L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.15468/dl.k5tm5g
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Acanthospermum hispidum DC.",
 "Country is Sierra Leone",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0112796-250525065834625/datasets/export for details.
DOI: 10.3535/ss1-4m9-fr2
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/0b5-7m2-zq2
title: Mansoa hymenaea (A. DC.) A. H. Gentry

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/1f3-b41-4r2
title: Brassicaceae Burnett

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/eg9-4j1-dx9
title: Echiochilon longiflorum Benth.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/wre-rz3-rhe
title: Boraginaceae Juss.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/d50-zfz-qqp
title: Heliotropium L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/6na-4s8-7dq
title: Heliotropium curassavicum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/852-k4c-53w
title: Echiochilon Desf.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.6084/m9.figshare.30218455
title: Packed bed absorption of dilute iodine vapor from air to aqueous caustic soda: mass transport modelling and validation

description: This study investigates the removal of low-concentration iodine vapor from air using aqueous sodium hydroxide (NaOH) in a laboratory-scale packed column, employing both experimental and modelling approaches. Experiments were conducted to determine the overall volumetric mass transfer coefficient (KGaeff) and assess the influence of gas flow rate, liquid flow rate, NaOH concentration, and packing type. Results showed that KGaeff and the effective interfacial area were strongly dependent on the gas-phase Reynolds number (ReG), while liquid-phase parameters had minimal impact under most conditions. However, at high gas Reynolds numbers and low NaOH concentrations, the liquid flow rate progressively affected KGaeff, indicating a transition in the controlling mass transfer regime. A correlation for KGaeff was developed and integrated into a one-dimensional finite difference solver to simulate the absorption process. The predicted outlet iodine concentrations agreed with experimental results, with deviations within 10%. Phase resistance analysis revealed a shift from gas-phase-controlled to mixed gas-liquid controlled mass transfer at ReG ≥ 25 and [OH]≤ 0.25 M. Additionally, porosity was found to inversely affect KGaeff, underscoring the importance of selecting packing materials that minimize gas-phase resistance. These findings highlight the critical role of gas-phase hydrodynamics and hydroxide concentration in optimizing iodine removal. The insights gained are valuable for the design and operation of caustic scrubbers intended to control radioactive iodine emissions in nuclear and radiochemical facilities.