Sal de Fremy

Potassium nitrosyldisulfonate - chemical compound hosting a long-lived free radical. Article “Sal de Fremy” in Spanish Wikipedia has 8.1 points for quality (as of July 1, 2026). The article contains 1 references and 3 sections.

This article has the best quality in Czech Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Sal de Fremy”, its content was written by 7 registered users of Spanish Wikipedia and edited by 129 registered Wikipedia users in all languages.

The article is cited 2 times in Spanish Wikipedia and cited 39 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Spanish): #49458 in December 2017
• Global: #84988 in February 2007

The highest popularity rank from 2008:

• Local (Spanish): #343739 in February 2022
• Global: #551405 in February 2008

There are 12 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, 2026 (including revision history and pageviews for previous years).

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

#	Language	Quality grade	Quality score
1	Czech (cs) Frémyho sůl		37.7212
2	English (en) Frémy's salt		37.5813
3	Chinese (zh) 弗氏盐		36.876
4	German (de) Kaliumnitrosodisulfonat		30.2447
5	French (fr) Sel de Frémy		29.6419
6	Russian (ru) Соль Фреми		29.0865
7	Serbo-Croatian (sh) Kalijum nitrozodisulfonat		26.91
8	Serbian (sr) Kalijum nitrozodisulfonat		23.0277
9	Polish (pl) Sól Frémy’ego		21.5395
10	Spanish (es) Sal de Fremy		8.0634

More...

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

The most popular language versions of the article "Sal de Fremy" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Frémy's salt		151 737
2	German (de) Kaliumnitrosodisulfonat		40 670
3	Polish (pl) Sól Frémy’ego		13 729
4	Russian (ru) Соль Фреми		10 662
5	Chinese (zh) 弗氏盐		9 939
6	Spanish (es) Sal de Fremy		7 529
7	Persian (fa) نمک فرمی		1 692
8	French (fr) Sel de Frémy		920
9	Czech (cs) Frémyho sůl		787
10	Serbian (sr) Kalijum nitrozodisulfonat		640

More...

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

The most popular language versions of the article "Sal de Fremy" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Frémy's salt		435
2	German (de) Kaliumnitrosodisulfonat		222
3	Chinese (zh) 弗氏盐		99
4	Russian (ru) Соль Фреми		75
5	Czech (cs) Frémyho sůl		23
6	Polish (pl) Sól Frémy’ego		22
7	French (fr) Sel de Frémy		16
8	Spanish (es) Sal de Fremy		11
9	Persian (fa) نمک فرمی		5
10	Serbo-Croatian (sh) Kalijum nitrozodisulfonat		4

More...

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

Language versions of the article "Sal de Fremy" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Frémy's salt		51
2	German (de) Kaliumnitrosodisulfonat		28
3	Polish (pl) Sól Frémy’ego		11
4	French (fr) Sel de Frémy		9
5	Chinese (zh) 弗氏盐		8
6	Spanish (es) Sal de Fremy		7
7	Czech (cs) Frémyho sůl		6
8	Russian (ru) Соль Фреми		6
9	Serbo-Croatian (sh) Kalijum nitrozodisulfonat		2
10	Serbian (sr) Kalijum nitrozodisulfonat		1

More...

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

Language versions of the article "Sal de Fremy" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Czech (cs) Frémyho sůl		0
2	German (de) Kaliumnitrosodisulfonat		0
3	English (en) Frémy's salt		0
4	Spanish (es) Sal de Fremy		0
5	Persian (fa) نمک فرمی		0
6	French (fr) Sel de Frémy		0
7	Polish (pl) Sól Frémy’ego		0
8	Russian (ru) Соль Фреми		0
9	Serbo-Croatian (sh) Kalijum nitrozodisulfonat		0
10	Serbian (sr) Kalijum nitrozodisulfonat		0

More...

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

Language versions of the article "Sal de Fremy" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Frémy's salt		8
2	Russian (ru) Соль Фреми		6
3	Chinese (zh) 弗氏盐		6
4	Polish (pl) Sól Frémy’ego		5
5	French (fr) Sel de Frémy		4
6	German (de) Kaliumnitrosodisulfonat		3
7	Persian (fa) نمک فرمی		3
8	Czech (cs) Frémyho sůl		2
9	Spanish (es) Sal de Fremy		2
10	Serbo-Croatian (sh) Kalijum nitrozodisulfonat		0

More...

#	Language	Value
cs	Czech Frémyho sůl
de	German Kaliumnitrosodisulfonat
en	English Frémy's salt
es	Spanish Sal de Fremy
fa	Persian نمک فرمی
fr	French Sel de Frémy
pl	Polish Sól Frémy’ego
ru	Russian Соль Фреми
sh	Serbo-Croatian Kalijum nitrozodisulfonat
sr	Serbian Kalijum nitrozodisulfonat
ur	Urdu فریمی سالٹ
zh	Chinese 弗氏盐

Best Rank

Spanish: #343739 02.2022

Global: #551405 02.2008

Best Rank

Spanish: #49458 12.2017

Global: #84988 02.2007

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In Spanish Wikipedia the most popular articles on that day were: Copa Mundial de Fútbol de 2026, Julián Andrés Quiñones, Gilberto Mora Zambrano, Sebastián Beccacece, Raúl Jiménez, República Democrática del Congo, Javier Aguirre, Erling Haaland, Copa Mundial de Fútbol, Romelu Lukaku.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information