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Calcium Hydroxide 98%

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Calcium Hydroxide 98%

Price: £3.95

Stock Availability:

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Stock Availability
On Shelf - Approx. UK delivery date: Thursday the 12th October 2023*
In bulk stock - ships within 4 - 8 Days (Excluding weekends and public holidays)
4 - 6 Weeks Approx.
* 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..

  • 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:
9th September 2020
Review:
“Item as described, prompt delivery.”
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Date:
25th August 2020
Review:
“Very efficient service”
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Date:
9th August 2020
Review:
“Good product. Arrived on time. I used it with corn and my tortillas turned out well!”
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Date:
1st July 2020
Review:
“Good source of essential chemicals”
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Date:
13th June 2020
Review:
“Arrived on time. I have to assume that the contents are what they say they are. Certainly when I mixed it with copper sulphate & sprayed my nectarine bush it had the desired effect. Package came with health warnings.”
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Date:
12th June 2020
Review:
“As advertised”
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Date:
12th June 2020
Review:
“Perfect”
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Date:
10th June 2020
Review:
“very good service thank you”
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Date:
9th June 2020
Review:
“No impurities. Great product”
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Date:
6th June 2020
Review:
“Great”
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Date:
30th May 2020
Review:
“Excellent”
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Date:
11th April 2020
Review:
“My order arrived extremely quickly. Great service”
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Date:
13th February 2020
Review:
“Good product”
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Date:
16th January 2020
Review:
“Excellent”
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Date:
12th January 2020
Review:
“great service, thanks”
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Date:
19th November 2019
Review:
“good”
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Date:
7th November 2019
Review:
“OK”
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Date:
14th August 2019
Review:
“It is as described”
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Date:
11th August 2019
Review:
“Great”
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Date:
11th August 2019
Review:
“.”
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Date:
9th August 2019
Review:
“Perfect”
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Date:
27th July 2019
Review:
“Good service”
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Date:
22nd June 2019
Review:
“good value product fast delivery”
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Date:
12th May 2019
Review:
“Arrived on time and well packaged. A pleasure to deal with Source Chemicals.”
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Date:
2nd May 2019
Review:
“Exactly right. Thank you.”
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Date:
12th April 2019
Review:
“This was the bulk order I placed. Delivery was ahead of schedule by weeks! Product is sound. Used in both, alchemy of indigo turning plant material into pigment and for Organic 1,2,3, indigo vat recipe. Results are good. Highly recommend. Thank you!”
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Date:
29th March 2019
Review:
“Using this in a textile paste. Nicely packaged so shouldn't go off too quickly”
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Date:
27th February 2019
Review:
“Great”
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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:
3rd October 2018
Review:
“1st class service”
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Date:
15th July 2018
Review:
“All good thanks”
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Date:
14th July 2018
Review:
“Vg service”
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Date:
12th June 2018
Review:
“It arrived quickly and it is as ordered. Thanks.”
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Date:
12th June 2018
Review:
“Calcium Hydroxide (pickling Lime) arrived in very good condition, promptly and fully met ,y expectations”
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Date:
25th 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:
14th August 2017
Review:
“Very high purity.”
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Date:
14th August 2017
Review:
“Exactly as described, would recommend.”
Rating:
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Date:
18th July 2017
Review:
“On time”
Rating:
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Date:
14th January 2017
Review:
“Exellent product - Great value. Delivered promptly.”

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Latest Feedback

  • Rating:
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    Date:
    30th September 2020
    “Among the best customer service ever via Amazon.”
  • Rating:
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    Date:
    27th September 2020
    “Item exactly as described and of high purity. Well packed for delivery as well.”
  • Rating:
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    Date:
    26th September 2020
    “Very helpful and courteous emails from seller, as I had misunderstood details of purchase. A refund was very promptly sent. Thank you very much for your understanding.”
  • Rating:
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    Date:
    25th September 2020
    “Prompt delivery no problems would recommend”
  • Rating:
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    Date:
    23rd September 2020
    “n/a”
  • Rating:
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    Date:
    21st September 2020
    “Thank you for your prompt response to my message. I am delighted to report that the second half of my order arrived safely today. The mistake was speedily and satisfactorily rectified. Thank you again.”
  • Rating:
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    Date:
    21st September 2020
    “Very speedy delivery. Perfect.”
  • Rating:
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    Date:
    21st September 2020
    “Brilliant”
  • Rating:
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    Date:
    20th September 2020
    “Excellent service. Thank you.”
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    Date:
    19th September 2020
    “Order and delivery worked well. Thank you.”
  • Rating:
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    Date:
    18th September 2020
    “Use it to remove stains from my teeth...smoker,works brilliant”
  • Rating:
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    Date:
    18th September 2020
    “Good seller excellent product”
  • Rating:
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    Date:
    17th September 2020
    “Arrived nice and quick. Such a useful product, wouldn't be without it.”
  • Rating:
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    Date:
    12th September 2020
    “Came quickly.”
  • Rating:
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    Date:
    12th September 2020
    “Does the job.”
  • Rating:
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    Date:
    9th September 2020
    “Item as described, prompt delivery.”
  • Rating:
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    Date:
    6th September 2020
    “:-)”
  • Rating:
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    Date:
    6th September 2020
    “As described”
  • Rating:
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    Date:
    5th September 2020
    “Easy transaction, delivery promise fulfilled.”
  • Rating:
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    Date:
    3rd September 2020
    “Thankyou.daughter pleased”
  • Rating:
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    Date:
    30th August 2020
    “Great delivery time”
  • Rating:
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    Date:
    28th August 2020
    “needs a few washes to whiten dog coat”
  • Rating:
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    Date:
    27th August 2020
    “Happy with my purchase”
  • Rating:
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    Date:
    27th August 2020
    “Happy with my purchase”
  • Rating:
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    Date:
    26th August 2020
    “Hand delivered . Just right for a serious oxidant.”
  • Rating:
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    Date:
    25th August 2020
    “Very efficient service”
  • Rating:
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    Date:
    25th August 2020
    “Good service, have bought many times. Will use again.”
  • Rating:
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    Date:
    22nd August 2020
    “No problems prompt efficient service ”
  • Rating:
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    Date:
    22nd August 2020
    “Arrived by apc carrier. Item as described and recieved follow up email for tracking details”
  • Rating:
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    Date:
    22nd August 2020
    “Great quality and service. Will use again”
  • Rating:
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    Date:
    22nd August 2020
    “Thank you! **********************”
  • Rating:
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    Date:
    22nd August 2020
    “.”
  • Rating:
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    Date:
    21st August 2020
    “Package arrived within two days in good order - Contents as described”
  • Rating:
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    Date:
    21st August 2020
    “Quick delivery - no problems”
  • Rating:
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    Date:
    18th August 2020
    “Good stuff! Could be possible for you to use an hard trasparent plastic container?”
  • Rating:
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    Date:
    18th August 2020
    “I have been using surgical spirit for years but recently it's very hard to get hold of. Luckily Amazon sell this so ordered some just to keep back. It can be used for a number of things so handy to have a bottle in. It's only a small bottle but you don't need much.”
  • Rating:
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    Date:
    16th August 2020
    “Excellent”
  • Rating:
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    Date:
    16th August 2020
    “very pleased”
  • Rating:
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    Date:
    13th August 2020
    “Prompt and proper delivery of package. Satisfied.”
  • Rating:
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    Date:
    13th August 2020
    “Delivered promptly, well packaged and exactly as described. Both packages weighed more than the amount shown on their label.”
  • Rating:
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    Date:
    13th August 2020
    “Thankyou”
  • Rating:
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    Date:
    12th August 2020
    “As described”
  • Rating:
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    Date:
    9th August 2020
    “Good product. Arrived on time. I used it with corn and my tortillas turned out well!”
  • Rating:
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    Date:
    8th August 2020
    “Prompt, efficient transaction.”
  • Rating:
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    Date:
    6th August 2020
    “Such prompt service! Arrived by courier, very happy with company and product”
  • Rating:
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    Date:
    4th August 2020
    “top seller, recommend to anyone”
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    Date:
    3rd August 2020
    “Item as described and arrived promptly”
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    Date:
    3rd August 2020
    “would buy from again if needed”
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    Date:
    2nd August 2020
    “prompt service,no problems”
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    Date:
    2nd August 2020
    “Great service”
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