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Chemistry News engagement report

@ChemistryNews - 513K followers on X

Measured over 10 original posts from a 30-day window, last computed on October 18, 2026.

Engagement

Bottom quarter for its size
Per follower
0.002%
of 513K followers
Per impression
0.118%
6.8K views on a typical post
Reach
1.32%
of its followers see a post
Typical post
8
interactions (median)
Saved
0.007%
0 bookmarks on a typical post
Posting rate
0.33/day
active 10% of days
Peak time
18:00 UTC
Friday

A typical post picks up 8 interactions against 513K followers, an engagement rate of 0.002%. Measured over 10 original posts, its engagement rate beats 15% of 20,444 tracked accounts of a similar size. That is a reason to look at how the audience behaves - reply depth, saves, whether the followers are recent - rather than a conclusion about it on its own. Posts are seen about 6.8K times each, and 0.118% of those impressions turn into an interaction. That is about 1.32% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.33 posts a day over the last 30 days, though only 10% of days saw any activity at all. Most posts go out around 18:00 UTC, and Friday is the busiest day of the week. Of the 10 posts sampled, 10% carry an image or video. The account's strongest tracked post pulled 699 interactions, about 87x its own typical post.

Measured over 10 original posts from a 30-day window, last computed on October 18, 2026.

Compared with accounts its own size

Chemistry News's engagement rate beats 15% of the tracked X accounts closest to it in follower count (20,444 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.

On engagement per impression rather than per follower it beats 8% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.

Where this sits in the catalog

At 0.002%, Chemistry News sits below the 10th percentile of the 205,261 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.024%.

p100.004%
p250.024%
p50 (median)0.143%
p750.678%
p902.55%
p9982.4%
Engagement rate as a share of followers, across the 205,261 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,894 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.004%
25th percentile0.024%
50th percentile0.143%
75th percentile0.678%
90th percentile2.55%
99th percentile82.4%

This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built

Posting timing

This account posts most often around 18:00 UTC, and Friday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 18:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 18:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%89K
01:00 UTC-2%90K
02:00 UTC-3%88K
03:00 UTC-4%94K
04:00 UTC-5%76K
05:00 UTC-4%75K
06:00 UTC-5%86K
07:00 UTC-5%93K
08:00 UTC-4%108K
09:00 UTC-4%124K
10:00 UTC-3%129K
11:00 UTC-3%141K
12:00 UTC-3%154K
13:00 UTC-3%167K
14:00 UTC-4%173K
15:00 UTC-2%176K
16:00 UTC-3%171K
17:00 UTC-3%159K
18:00 UTC-2%149K
19:00 UTC-2%141K
20:00 UTC-1%131K
21:00 UTC0%116K
22:00 UTC-2%100K
23:00 UTC-1%90K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Friday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Friday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%393K
Monday+1%483K
Tuesday-2%520K
Wednesday-3%472K
Thursday-2%430K
Friday-3%447K
Saturday+2%393K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Formats this account uses

Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.

This account's posting mix compared with catalog-wide effects
FormatThis accountCatalog effect95% intervalAccounts behind it
Image or video10% of posts+111%+108% to +115%34K
Outbound link0% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 10% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
  • 0% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts.
  • Its average post runs 154 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 3% below the same accounts' other posts.

These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.

Best tweets

  • Nov 19, 202587x their median

    Topology without tears https://t.co/tOb9ghZYeP https://t.co/4UPUy2Mk1W

    40527019547K viewsView on X
  • Jun 1, 20268.8x their median

    Modular diastereoselective synthesis of hindered cyclobutane amino nitriles through triplet nitrene-mediated ring expansion https://t.co/rFn2htjjwt https://t.co/WcerAk78zr

    9511004.8K viewsView on X
  • Jul 2, 202610x their median

    Electrophotocatalysis for direct vicinal dichlorination of carboxylic acids https://t.co/l4uD9PjedD https://t.co/LJLNM8avPy

    748106.5K viewsView on X
  • Sep 1, 202610x their median

    New method swaps single atom in a molecule to speed drug discovery https://t.co/QkQNH9Akt2

    7380111K viewsView on X
  • May 2, 20264.4x their median

    A life researching the path to better polymers https://t.co/PFzfRaI0jE https://t.co/Y33IOyjLqr

    609108.4K viewsView on X
  • Aug 2, 20268.1x their median

    Why some nitrogen-processing enzymes are more efficient than others https://t.co/PYWOvzGMqi

    51121113K viewsView on X
  • Aug 1, 20267.3x their median

    Formaldehyde hydroformylation over a heterogeneous catalyst based on a functionalized rhodium-biphosphine unit https://t.co/7Uyp3acw9j https://t.co/b87daQFXjr

    48100012K viewsView on X
  • Jul 2, 20267.3x their median

    How isoprene connects plants to global climate https://t.co/jUl8bSpExS https://t.co/OTHzKoE1BG

    4014224.8K viewsView on X
  • Sep 2, 20266.4x their median

    Palladium-triggered bioorthogonal phenylalanine decaging https://t.co/MNhy9NaDeP https://t.co/utrYoYjLTY

    427027.6K viewsView on X
  • Aug 2, 20265.0x their median

    Lanolin in implantation of luminous polymer dots for environmental application as metal probes https://t.co/PHV3c3FfB2 https://t.co/n8CoaLyXGj

    3640011K viewsView on X

Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.

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Reading these numbers

A typical post picks up 8 interactions against 513K followers, an engagement rate of 0.002%. Measured over 10 original posts, its engagement rate beats 15% of 20,444 tracked accounts of a similar size. That is a reason to look at how the audience behaves - reply depth, saves, whether the followers are recent - rather than a conclusion about it on its own. Posts are seen about 6.8K times each, and 0.118% of those impressions turn into an interaction. That is about 1.32% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.33 posts a day over the last 30 days, though only 10% of days saw any activity at all. Most posts go out around 18:00 UTC, and Friday is the busiest day of the week. Of the 10 posts sampled, 10% carry an image or video. The account's strongest tracked post pulled 699 interactions, about 87x its own typical post.

What is Chemistry News's engagement rate on X?
Chemistry News (@ChemistryNews) has an engagement rate of 0.002%, based on the median interactions across 10 original posts from the last 30 days against 513,060 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.002%, Chemistry News sits below the 10th percentile of the 205,261 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
Does @ChemistryNews have real engagement?
Its engagement rate beats 15% of the tracked X accounts closest to it in follower count (20,444 accounts), which puts it in the bottom quarter for its size group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
When does @ChemistryNews post?
Most posts go out around 18:00 UTC, and Friday is its busiest day, at roughly 0.33 posts per day across the measured window.

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