Phosphorsäure
MaybeAn estimated 0.1% of orders come back. But shoppers spend an estimated $79K a year here, so Phosphorsäure is a Maybe.
- Flapen Score
- 57 / 100Top 22% of 1,428 Auto & Motorrad niches · +6 vs the category median of 5157
- Market size
- €79K/yr48K searches / yr
- 90-day growth
- +97.2%search demand this quarter
- Competition
- 72%top-5 click share · 10 brands · 31 sellers
Flapen Score
Phosphorsäure against its category
The dotted line is the Auto & Motorrad average. Past it, Phosphorsäure is stronger. Inside it, weaker.
Market
The Phosphorsäure market on Amazon at a glance
Shoppers on Amazon Germany searched for Phosphorsäure 48K times last year and spent an estimated €79K. The top 5 brands take 87% of clicks. Flapen scores it 57 out of 100, a Maybe.
01 · Demand
An estimated 7.0% of those searches ended in a purchase.
Shoppers searched for this 48K times in the last 12 months. That counts every search on Amazon Germany for this niche's terms. An estimated 7.0% of those searches ended in a purchase. Searches in the last 90 days moved +97.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated €79K a year.
- Searches, last 12 months
- 48K
- Growth, 90 days vs prior 90
- +97.2%
- Conversion, latest week
- 7.0%
- Market size, estimated
- €79Ka year
- Top search term
- phosphorsäure42K searches a year
02 · Price
A sale here is worth €23.62.
Listings sell for €23.62 on average, from €6.58 to €70.23. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 100 to 250 of them. At €23.62 that is €2K to €6K a year per listing.
- Average price
- €23.62inside the $15 to $100 sweet spot
- Price range
- €6.58–€70.23
- Amazon Germany median price
- €18.99across 29,809 niches
- Units sold a year
- 3K–3K
- Units per listing a year
- 100–250
- Revenue per listing a year
- €2K–€6K
- Returns
- 0.1%of orders · Amazon Germany median 1.1%
03 · Entry bar
The bar here is low.
56% of listings pay for placement with sponsored ads. 25% ship with Prime. On an average day, 2.9% of listings are out of stock. The average listing ranks #130 within Reinigung & Pflege. It carries 384 reviews at 4.53 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 56%
- Prime listings
- 25%
- Out of stock, average day
- 2.9%
- Average rank
- #130in Reinigung & Pflege
- Average rating
- 4.53 starsAmazon Germany average 4.37 stars
- Average reviews
- 384per listing
- Listings tracked
- 16
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 72 months on average, so the names here are established.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 72 months
Products
Top Phosphorsäure products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 6, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Cleanerist Phosphorsäure 85% I H3PO4 - E338 I Rostumwandler I Kalklöser I Urinsteinlöser I 1 Liter
- Price
- €19.86
- Rating
- 4.7/5
- Reviews
- 222
- Age
- 5y ago

Phosphorsäure 75% 1 L | Rostumwandler Rostentferner Rostlöser für Metall Konzentrat zum Anmischen
- Price
- €7.65
- Rating
- 4.7/5
- Reviews
- 400
- Age
- 7y ago

Phosphorsäure 75% 5 L | Rostumwandler Rostentferner Rostlöser für Metall Konzentrat zum Anmischen
- Price
- €24.89
- Rating
- 4.7/5
- Reviews
- 400
- Age
- 7y ago

Centra24 Phosphorsäure 75% 1.6kg (=1L) Rostlöser Entkalker Urinsteinlöser hochkonzentriert lange Haltbarkeit technische Qualität
- Price
- €11.89
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 5mo ago

Chemdiscount 1Liter (ca. 1 6kg) Phosphorsäure (H3PO4) 85%
- Price
- €15.86
- Rating
- 4.7/5
- Reviews
- 142
- Age
- 4y ago
Trending
estimated 90-day click momentum
Centra24 Phosphorsäure 75% 1.6kg (=1L) Rostlöser Entkalker Urinsteinlöser hochkonzentriert lange Haltbarkeit technische Qualität
- Price
- €11.89
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 5mo ago

SOLUP Phosphorsäure 25% 1 L Technische Lösung I Rostumwandler & Entroster I Kalklöser & Urinsteinlöser I Geeignet für Stahl & Edelstahl I Flasche mit Sicherheitsverschluss
- Price
- €18.99
- Rating
- 4.8/5
- Reviews
- 7
- Age
- 7mo ago

Cleanerist Phosphorsäure 85% H3PO4 E338 5 Liter Kanister inkl Ausgießer Hochwirksamer Rostumwandler Kalklöser Urinsteinlöser für Metall Pflege Sanitäranlagen Reinigung Profi Premium Qualität
- Price
- €70.23
- Rating
- 4.7/5
- Reviews
- 222
- Age
- 5y ago

Cleanerist 3x1 Liter Rostumwandler I Rostentferner | Rostschutz | Phosphorsäure I Rostlöser I Flugrostentferner
- Price
- €23.68
- Rating
- 3.6/5
- Reviews
- 7
- Age
- 5y ago

presto 603079 Rostumwandler 100 ml
- Price
- €6.58
- Rating
- 4.6/5
- Reviews
- 3,447
- Age
- 13y ago
Newest
by launch date
Centra24 Phosphorsäure 75% 1.6kg (=1L) Rostlöser Entkalker Urinsteinlöser hochkonzentriert lange Haltbarkeit technische Qualität
- Price
- €11.89
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 5mo ago

SOLUP Phosphorsäure 25% 1 L Technische Lösung I Rostumwandler & Entroster I Kalklöser & Urinsteinlöser I Geeignet für Stahl & Edelstahl I Flasche mit Sicherheitsverschluss
- Price
- €18.99
- Rating
- 4.8/5
- Reviews
- 7
- Age
- 7mo ago

Carbigo TankClean PRO 1.000ml | Hochwirksamer Tankrostentferner Konzentrat | Entfernt porentief Rost aus Stahltanks | Für Motorrad Auto Boot | Phosphorsäurebasiert | Made in Germany
- Price
- €10.85
- Rating
- 3.5/5
- Reviews
- 34
- Age
- 1y ago

FABA Phosphorsäure 85% 5 L im Kanister
- Price
- €41.30
- Rating
- 4.8/5
- Reviews
- 22
- Age
- 3y ago

Chemdiscount 1Liter (ca. 1 6kg) Phosphorsäure (H3PO4) 85%
- Price
- €15.86
- Rating
- 4.7/5
- Reviews
- 142
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 72% of clicks. A locked shelf that new listings rarely crack.
Brands
10 flat
Sellers
31
Est. top-5 brand share
87%
Top 20: 100%
Est. top-5 click share
72%
Top 20: 100%
Open market
7%
- Furthchemie34%
- Die Seifenblase27%
- Centra2411%
- Chemdiscount9%
- SOLUP7%
- Optimal Products die bessere Lösung5%
- Open — no brand owns it (4 brands, 7%)
Demand
Phosphorsäure search demand
Weekly searches over the year. Pick a range.
Search terms
Top Phosphorsäure search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- phosphorsäure42K/yr
- phosphorsäure 85%4K/yr
- phosphorsäure kaufen3K/yr
Reviews and returns
What reviews say buyers love and hate about Phosphorsäure
We read the reviews and the return reasons for every product selling here.
“Sogar völlig Verrostetes (mit tiefen Rost Narben)”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
15 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Phosphorsäure questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









