Heavy water

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Heavy water

Quality:

Heavy water - chemical compound. Article “Heavy water” in Simple English Wikipedia has 9.3 points for quality (as of July 1, 2025).

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Simple English) language version.

Achievements in the last month:
Global Wikipedia:
The 5674th most popular in all topics in the last month.

Since the creation of article “Heavy water”, its content was written by 3 registered users of Simple English Wikipedia and edited by 2516 registered Wikipedia users in all languages.

The article is cited 15 times in Simple English Wikipedia and cited 5329 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #2777 in May 2018
  • Global: #1403 in July 2004

The highest popularity rank from 2008:

  • Local (Simple English): #7848 in May 2019
  • Global: #2687 in March 2011

There are 50 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Heavy water
82.8529
2Catalan (ca)
Aigua pesant
54.6179
3Spanish (es)
Agua pesada
46.3302
4German (de)
Schweres Wasser
45.8852
5Vietnamese (vi)
Nước nặng
40.2038
6Russian (ru)
Тяжёлая вода
39.4439
7Ukrainian (uk)
Важка вода
37.5184
8French (fr)
Eau lourde
37.0233
9Serbian (sr)
Тешка вода
34.8819
10Polish (pl)
Ciężka woda
32.2947
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Heavy water" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Heavy water
9 423 582
2German (de)
Schweres Wasser
2 421 113
3Russian (ru)
Тяжёлая вода
1 828 331
4Spanish (es)
Agua pesada
1 577 518
5French (fr)
Eau lourde
1 282 903
6Polish (pl)
Ciężka woda
1 095 473
7Japanese (ja)
重水
1 044 421
8Italian (it)
Acqua pesante
704 155
9Norwegian (no)
Tungtvann
602 053
10Swedish (sv)
Tungt vatten
562 713
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Heavy water" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Heavy water
46 857
2Russian (ru)
Тяжёлая вода
17 414
3German (de)
Schweres Wasser
15 828
4Persian (fa)
آب سنگین
14 214
5Hebrew (he)
מים כבדים
9 884
6French (fr)
Eau lourde
6 801
7Polish (pl)
Ciężka woda
6 054
8Arabic (ar)
ماء ثقيل
4 998
9Italian (it)
Acqua pesante
4 949
10Dutch (nl)
Zwaar water
4 947
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Heavy water" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Heavy water
641
2German (de)
Schweres Wasser
242
3French (fr)
Eau lourde
189
4Italian (it)
Acqua pesante
115
5Russian (ru)
Тяжёлая вода
115
6Norwegian (no)
Tungtvann
97
7Dutch (nl)
Zwaar water
90
8Spanish (es)
Agua pesada
81
9Polish (pl)
Ciężka woda
70
10Hebrew (he)
מים כבדים
67
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Heavy water" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Heavy water
5
2Armenian (hy)
Ծանր ջուր
1
3Norwegian (no)
Tungtvann
1
4Romanian (ro)
Apă grea
1
5Uzbek (uz)
Ogʻir suv
1
6Arabic (ar)
ماء ثقيل
0
7Azerbaijani (az)
Ağır su
0
8Belarusian (be)
Цяжкая вада
0
9Bulgarian (bg)
Тежка вода
0
10Catalan (ca)
Aigua pesant
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Heavy water" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Heavy water
1 214
2French (fr)
Eau lourde
417
3Persian (fa)
آب سنگین
332
4Italian (it)
Acqua pesante
245
5Arabic (ar)
ماء ثقيل
221
6Ukrainian (uk)
Важка вода
189
7German (de)
Schweres Wasser
187
8Russian (ru)
Тяжёлая вода
184
9Chinese (zh)
重水
151
10Greek (el)
Βαρύ ύδωρ
148
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in June 2025:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in June 2025:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
ماء ثقيل
azAzerbaijani
Ağır su
beBelarusian
Цяжкая вада
bgBulgarian
Тежка вода
caCatalan
Aigua pesant
csCzech
Těžká voda
daDanish
Tungt vand
deGerman
Schweres Wasser
elGreek
Βαρύ ύδωρ
enEnglish
Heavy water
eoEsperanto
Peza akvo
esSpanish
Agua pesada
etEstonian
Raske vesi
euBasque
Ur astun
faPersian
آب سنگین
fiFinnish
Raskas vesi
frFrench
Eau lourde
glGalician
Auga pesada
heHebrew
מים כבדים
hiHindi
भारी जल
hrCroatian
Teška voda
huHungarian
Nehézvíz
hyArmenian
Ծանր ջուր
idIndonesian
Air berat
itItalian
Acqua pesante
jaJapanese
重水
kaGeorgian
მძიმე წყალი
kkKazakh
Ауыр су
koKorean
중수
msMalay
Air berat
nlDutch
Zwaar water
nnNorwegian (Nynorsk)
Tungtvatn
noNorwegian
Tungtvann
plPolish
Ciężka woda
ptPortuguese
Água pesada
roRomanian
Apă grea
ruRussian
Тяжёлая вода
shSerbo-Croatian
Teška voda
simpleSimple English
Heavy water
skSlovak
Ťažká voda
slSlovenian
Težka voda
srSerbian
Тешка вода
svSwedish
Tungt vatten
taTamil
கன நீர்
trTurkish
Ağır su
ukUkrainian
Важка вода
urUrdu
بھاری پانی
uzUzbek
Ogʻir suv
viVietnamese
Nước nặng
zhChinese
重水

Popularity rank trends

Best Rank Simple English:
#7848
05.2019
Global:
#2687
03.2011

AI rank trends

Best Rank Simple English:
#2777
05.2018
Global:
#1403
07.2004

Local popularity rank history

Global popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Heavy water from Wikipedia articles about Deuterium, Norwegian heavy water sabotage, German nuclear program during World War II, Heavy water reactor and Tritiated water. Whereas reading the article about Heavy water people most often go to Wikipedia articles on Deuterium, Tritiated water, Girdler sulfide process, Tritium and Norwegian heavy water sabotage.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

ja: 重水
zh: 重水
ko: 중수
simple: Heavy water

News from 28 January 2026

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

In Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, Pornhub, XXXTentacion, XVideos, List of people who have walked on the Moon, Manon Bannerman, Ajit Pawar, List of U.S. states, List of sex positions.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information