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Calcium Hydroxide 98%

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Price: £

Corona Virus

Please note that we have received a huge number of orders for products related to the Corona Virus. Please be assured that we will honour every single order in our system.

We have switched off ordering via our website due to a number of huge orders having been placed which has lead to our production levels running at full capacity. We hope to start accepting orders again soon once production levels return to a manageable level.

To our Amazon Customers

Many of our Amazon orders are down as late dispatch. When the surge of orders started, this was mostly via our Amazon platform to begin with and around 4 months worth of orders came in within a 24 hour period. We have since put the listings out of stock to help ease the order flow while we work to clear back orders. Please be assured we have stock and will ship asap.

To our ebay Customers

Most orders are still within dispatch time as we increased dispatch times dramatically as soon as we realised the extent of the surge. We have since put our high volume listings out of stock while we work to clear back orders.

To all our Customers

We do work by oldest order first. We don't have the facility to prioritise customers above others and believe this to be bad practice. We are an honest and upfront company and prefer to state where possible accurate dispatch times across our platforms. Please be assured we have plenty of stock to clear existing orders. Once we have returned our production levels to a more manageable level, we will be imposing quantity based limits to keep things fair for everyone.

We are committed to helping all our customers through this difficult time and we wish you all good health

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Calcium Hydroxide 98%

Price: £2.45

Compare all Pack Sizes

* We will always try to ship as early as possible
  • A flocculant, in water and sewage treatment and improvement of acid soils
  • An ingredient in whitewash, mortar, and plaster
  • An alkali used as a lye substitute in no-lye hair relaxers
  • For reef aquarium hobby for adding bio-available calcium in solution for calcium-using animals such as algae, snails, hard tube worms, and corals (often referred to as Kalkwasser mix), and also to increase the alkalinity of the water

Calcium hydroxide, traditionally called slaked lime, is an inorganic compound with the chemical formula Ca(OH)2. It is a colourless crystal or white powder and is obtained when calcium oxide (called lime or quicklime) is mixed, or "slaked" with water. It has many names including Reef Kalkwasser, hydrated lime, builders lime, slack lime, cal, or pickling lime. It is of low toxicity and finds many applications, including for food.

  • Molecular Formula: Ca(OH)2
  • Molecular Weight: 74.09
  • Calcium Hydroxide (Ca(OH)2): >97.98%
  • Calcium Carbonate (CaCO3):>0.55%
  • Magnesium Oxide (MgO:) <0.23%
  • Iron Oxide (Fe2O3): <0.03%
  • Aluminium Oxide (Al2O3): <0.04%
  • Silica (SiO2): <0.36%
  • Manganese (Mn)
  • Sulphur (S): <0.01%
  • Lead (Pb):
  • Arsenic (As):
  • Free Moisture: 0.53%
  • Available Lime (as Ca(OH)2): >97.06%
  • Neutralisation: 74.46%

Hazard Phrases: Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.

Prec Phrases: Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

corrosive CLP Image Harmful CLP Image

Cas No: 1305-62-0
Einecs No: 215-137-3
FP: Not Flammable
Rating:
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Date:
28th January 2019
Review:
Excellent service.
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Date:
31st December 2018
Review:
Excellent
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Date:
30th November 2018
Review:
Item arrived promptly and exactly as I ordered, thanks
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Date:
4th October 2018
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1st class service
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Date:
16th July 2018
Review:
All good thanks
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Date:
15th July 2018
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Vg service
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Date:
13th June 2018
Review:
It arrived quickly and it is as ordered. Thanks.
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Date:
13th June 2018
Review:
Calcium Hydroxide (pickling Lime) arrived in very good condition, promptly and fully met ,y expectations
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Date:
26th March 2018
Review:
arrived on time as described
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Date:
9th February 2018
Review:
Excellent seller - item as described
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Date:
29th January 2018
Review:
Arrived very quickly, ahead of ETA. Well packaged.
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Date:
18th January 2018
Review:
arrived quickly and as described
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Date:
8th January 2018
Review:
PRODUCT IS AOK
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Date:
5th January 2018
Review:
good price, good product and fast delivery :)
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Date:
30th December 2017
Review:
Excellent service thank you
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Date:
27th November 2017
Review:
Great service.
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Date:
5th November 2017
Review:
Excellent service.
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Date:
15th August 2017
Review:
Exactly as described, would recommend.
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Date:
15th August 2017
Review:
Very high purity.
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Date:
19th July 2017
Review:
On time
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Date:
14th January 2017
Review:
Exellent product - Great value. Delivered promptly.

Latest Feedback

  • Rating:
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    Date:
    4th February 2019
    Exactly as described
  • Rating:
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    Date:
    28th January 2019
    Excellent service.
  • Rating:
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    Date:
    21st January 2019
    Quick delivery no problems
  • Rating:
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    Date:
    20th January 2019
    Item arrived slightly sooner than expected. Item exactly as described, and I will most likely use them for next purchase as well.
  • Rating:
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    Date:
    17th January 2019
    Arrived a day earlier than estimate. Haven't tried product yet - bought it to remove black water marks off wooden draining board.
  • Rating:
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    Date:
    16th January 2019
    Great . Thanks
  • Rating:
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    Date:
    15th January 2019
    Product arrived on date as promised and was per description
  • Rating:
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    Date:
    14th January 2019
    Exactly what I needed, item as described & on time, will buy again, thank you
  • Rating:
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    Date:
    13th January 2019
    Smooth transaction. Goods arrived on time and were as described. A++
  • Rating:
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    Date:
    13th January 2019
    Smooth transaction. Goods arrived on time and were as described. A++
  • Rating:
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    Date:
    13th January 2019
    Many thanks! I'm using this with bicarbonate of soda and white vinegar to de-grease terracotta tiles on a kitchen floor.
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    Date:
    13th January 2019
    Too early to comment on how it works, I will probaly reorder from the same firm but would ask for a five litre bottle.
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    Date:
    8th January 2019
    Great seller, prompt delivery, as described. Many thanks.
  • Rating:
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    Date:
    31st December 2018
    Excellent
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    Date:
    30th December 2018
    Good
  • Rating:
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    Date:
    30th December 2018
    It does the job I need it .
  • Rating:
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    Date:
    24th December 2018
    Delivered as expected.
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    Date:
    23rd December 2018
    Exactly as described in very good packaging , quick delivery .
  • Rating:
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    Date:
    23rd December 2018
    Arrived before due date, I was pleased! Will get more from this company.
  • Rating:
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    Date:
    19th December 2018
    All good
  • Rating:
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    Date:
    18th December 2018
    Great
  • Rating:
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    Date:
    17th December 2018
    Prompt service/delivery. Well packed item.
  • Rating:
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    Date:
    14th December 2018
    I had mealy bug on my orchids and it had spread over 5 plants, this has cleared the infestation without killing the plants. Really good thanks
  • Rating:
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    Date:
    13th December 2018
    Great service !!
  • Rating:
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    Date:
    12th December 2018
    thank you ised to tan sheeps pelts.. easy to use as the package weight meant I didn't have to faff about weighing out and could just use 1 sachet for the recipe I had. Thank you
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    Date:
    12th December 2018
    good service, well wrapped and protected. bought for use as a modelling solvent it is the best for most plastics.
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    Date:
    12th December 2018
    Excellent
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    Date:
    10th December 2018
    Very good packaging.
  • Rating:
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    Date:
    8th December 2018
    good
  • Rating:
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    Date:
    6th December 2018
    Very pleased with the product which arrived three days early.
  • Rating:
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    Date:
    5th December 2018
    No problems
  • Rating:
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    Date:
    3rd December 2018
    All as expected no issues thank you
  • Rating:
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    Date:
    30th November 2018
    Item arrived promptly and exactly as I ordered, thanks
  • Rating:
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    Date:
    20th November 2018
    Brilliant, thank you very much.
  • Rating:
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    Date:
    19th November 2018
    Used to get stains out of Oak, Fantastic !!
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    Date:
    15th November 2018
    Excellent, thank you
  • Rating:
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    Date:
    14th November 2018
    Item was used for burning letters on wood, it did do the job.
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    Date:
    10th November 2018
    Great
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    Date:
    10th November 2018
    Prodotto come da descrizione.
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    Date:
    10th November 2018
    Prodotto come da descrizione.
  • Rating:
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    Date:
    8th November 2018
    Just the job for cleaning and getting rid of pests from orchid roots.
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    Date:
    7th November 2018
    The item arrived quickly and was well packaged. Thank you.
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    Date:
    7th November 2018
    Really pleased with this item and seller
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    Date:
    5th November 2018
    .
  • Rating:
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    Date:
    4th November 2018
    Smooth purchase experience, product new, as advertised, swift delivery. Five stars!
  • Rating:
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    Date:
    1st November 2018
    smashing
  • Rating:
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    Date:
    29th October 2018
    I have bought from this seller before and the service has been good.
  • Rating:
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    Date:
    29th October 2018
    Arrived on time as ordered
  • Rating:
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    Date:
    25th October 2018
    All good thanks
  • Rating:
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    Date:
    22nd October 2018
    arrived on time