Added to Basket

Calcium Sulphate Hemihydrate 96%

Pack:

Price: £

Tel: 0161 351 9599

Calcium Sulphate Hemihydrate 96%

Calcium Sulphate Hemihydrate 96%

Calcium Sulphate Hemihydrate 96%

  • Used as a common component of fouling deposits in industrial heat exchangers

Calcium sulphate (or calcium sulfate) is a common laboratory and industrial chemical. In the form of gamma-anhydrite (the nearly anhydrous form), it is used as a desiccant. It is also used as a coagulant in products like tofu. In the natural state, unrefined calcium sulphate is a translucent, crystalline white rock. When sold as a colour-indicating variant under the name Drierite, it appears blue or pink due to impregnation with Cobalt(II) chloride, which functions as a moisture indicator. The hemihydrate (CaSO4.~0.5H2O) is better known as plaster of Paris, while the dihydrate (CaSO4.2H2O) occurs naturally as gypsum. The anhydrous form occurs naturally as beta-anhydrite. Depending on the method of calcination of calcium sulphate dihydrate, specific hemihydrates are sometimes distinguished: alpha-hemihydrate and beta-hemihydrate. They appear to differ only in crystal shape. Alpha-hemihydrate crystals are more prismatic than beta-hemihydrate crystals and, when mixed with water, form a much stronger and harder superstructure.

Minimum Assay: <96%
Molecular Formula: CaO4S
Molecular Weight: 136.14
Solubility in water: 0.24g in 100g water
Melting Point:  1450°
Density (g/cm3): 2.96
Loss on ignition: <2.85%

Hazard Phrases: Causes skin irritation. Causes serious eye irritation.

Prec Phrases: 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. IF ON SKIN: Wash with plenty of soap and water. Specific treatment (see Take off contaminated clothing and wash before reuse. If skin irritation occurs: Get medical advice/attention.

Harmful CLP Image

Cas No: 7778-18-9
Einecs No: 231-900-3
Code Pack Price Qty  
ECE1024-X 100g £3.95
ECE1024-2X 250g £4.95
GPC1024-2X 250g £5.95
ECE1024-5X 500g £7.95
GPC1024-5X 500g £9.95
GPC1024-Y 1Kg £14.95
GPC1024-2.5Y 2.5Kg £19.95
GPC1024-5Y 5Kg £28.95
GPC1024-10Y 10Kg £39.95
GPC1024-25Y 25Kg £75.95

For delivery costs, please "Add to Basket" the required pack size and then go to checkout

Feedback

What our customers are saying...
  • carlosfux21

    Great Seller
    Hydrogen Peroxide 11% Food Grade 5 Litre (5L) **High Quality Food Grade**
  • bardstan1

    As described and delivered quickly
    **OFFER** Hydrogen Peroxide 6% FOOD GRADE 100ml-5L inc shipping
  • bardstan1

    As described and delivered quickly
    100ml Hydrogen Peroxide 3% (10 vols) **High Quality Food Grade**
  • trowelmonkey

    Repeat custom, you always know what you'll get.
    Sodium Benzoate - 250g
  • eugenkuz

    Great, Thanks!
    Hydrogen Peroxide 3% FOOD GRADE - Multi pack Listing 100ml - 25 Litre [200ml]
  • focus9

    Verey good fast service
    Hydrogen Peroxide 11% Food Grade 5 Litre (5L) **High Quality Food Grade**
  • 38bellsbank

    Well packed, fast delivery.
    **OFFER** ISOPROPYL 90-91% RUBBING ALCOHOL ISOPROPANOL 30ml - 5L (IA*)[1L]
  • lawh05

    Great thanks 2nd time ordering from you
    Hydrogen Peroxide FOOD GRADE - Choose 3%, 6%, 9% 12% and choose bottle size
  • alexdemps

    100% ok
    **OFFER** ISOPROPYL 70% RUBBING ALCOHOL ISOPROPANOL 30ml,50ml,100ml A**[30ml]
  • figurefox

    good ebayer would use again
    **OFFER** ISOPROPYL 70% RUBBING ALCOHOL ISOPROPANOL 30ml,50ml,100ml A**[30ml]
  • chris12345ber

    top seller ,fast delivery ,item as describe
    Rubbing Alcohol 91% (Isopropanol / Isopropyl Alcohol 91%) 500ml
  • 2156markb

    good item and service, thanks
    **OFFER** Hydrochloric Acid 35.0 - 36.6% 2 x 1L FOOD GRADE
  • tiger_tash

    Fast delivery, as described, thank you
    APC PURE ISOPROPYL 90-91% RUBBING ALCOHOL ISOPROPANOL 30ml - 2.5L (I*99)[1L]
  • moscarella

    Good Value....Thanks!
    Calcium Hydroxide 98.7% 250gm (Hydrated Lime)
  • ballahooligan

    Excellent superfast delivery, highly recommended ebayer
    Hydrogen Peroxide FOOD GRADE - 3% Choose bottle size
  • oldcaisterboy

    Excellent thank you
    Sulphamic Acid 99.5% Pure 4 x 5Kg (20Kg) *Shipped by Courier*
  • wincotewarrior

    All good, very helpful and well priced
    Hydrogen Peroxide 11% Food Grade 5 Litre (5L) **High Quality Food Grade**
  • bug67_scot

    Arrived safely, as expected many thanks
    **OFFER** Isopropyl Alcohol 99.9% ACS - Choose Pack Size and Cap/Adapter
  • nazavan171

    Thank you good custom quick delivery
    Food Grade Hydrogen Peroxide 11% 1 Litre **Same Day Shipment**
  • samsonrott2014

    very happy.
    Food Grade Hydrogen Peroxide 11% 1 Litre **Same Day Shipment**
  • craftimage

    Great ebayer, would buy from them again, fast delivery
    Distilled Water 25 Litres (25L)
  • hehasleftusalone

    Item as described, no problems
    Distilled Water 99.99% Ultrapure CHOOSE your size 50ml-25 Litre **High Quality**
  • astragsiturbo

    good ebayer Many thanks!
    Distilled Water 99.99% Ultrapure CHOOSE your size 50ml-25 Litre **High Quality**
  • stok-raym

    many thanks
    Tin (II) Oxide 98.5% 100g
  • fennercarol

    Fab item
    Hydrogen Peroxide 12% FOOD GRADE 100ml, 250ml,500ml,1 Litre, 2L,5L inc shipping
  • samanthadalgleish

    Arrived prompt, as ordered. Thank you
    APC Pure Food Grade Hydrogen Peroxide - 3% - 50ml-250ml[50ml]
  • pbcovuk

    Thank you...:)
    APC Pure Food Grade Hydrogen Peroxide - 12% - 100ml
  • suleman_s

    Thank you for your service.
    APC Pure Food Grade Hydrogen Peroxide - 3% - 50ml-250ml[50ml]
  • 1565falcon

    Thank u very much.
    APC PURE 50ml - 5L DISTILLED WATER 99.99% ULTRA PURE (A*)[5L]
  • keese89

    Fabulous
    Hydrogen Peroxide FOOD GRADE - Choose 3%, 6%, 9% 12% and choose bottle size
  • sophieboobyer3881

    A*
    Hydrogen Peroxide 12% FOOD GRADE 100ml, 250ml,500ml,1 Litre, 2L,5L inc shipping
  • bog-standard

    Fast delivery, item as described highly recommended AA++
    **OFFER** Isopropyl Alcohol 99.9% ACS - Choose Pack Size and Cap/Adapter
  • rheast123

    Excellent 5*
    APC PURE 90-91% ISOPROPYL RUBBING ALCOHOL ISOPROPANOL(IPA) 30ml,50ml A
  • harries650

    Issue with postage but sorted quickly -thank you
    Isobutanol 99% ACS (Isobutyl Alcohol) 500ml - FAST DESPATCH
  • amcadam355

    ****
    Hydrogen Peroxide 12% FOOD GRADE 100ml, 250ml,500ml,1 Litre, 2L,5L inc shipping
  • parki-re

    Needed for my chickens
    Gentian Violet Spray 0.5% Solution 100ml Pump Spray ** Anti Fungal/Antiseptic**
  • iana1365

    fast delivery, good product
    1Kg Calcium Hydroxide 98% Pure (Reef Kalkwasser) *FREE ROYAL MAIL SHIPMENT*
  • zanizy

    Came extremely quickly! Very good service again. Will deal again in future. Tks!
    Distilled Water 25 Litres (25L)
  • jamosolutions

    Smooth transaction. Brilliant - THANK YOU Jamo Solutions
  • srjeffrey10

    Great ebayer and very good communication, thank you!
    Distilled Water 99.99% Ultrapure CHOOSE your size 50ml-25 Litre **High Quality**
  • 666aniol

    Super super super
    **OFFER** Hydrochloric Acid 35.0 - 36.6% 2 x 1L FOOD GRADE
  • bigin2bikes

    Five star service and five star product!!!! Many thanks
    Potassium Hydroxide Flake 90% (Caustic Potash) 1Kg
  • jacchri_zb9pwa

    Top eBay seller nice prompt service
    Hydrogen Peroxide FOOD GRADE - Choose 3%, 6%, 9% 12% and choose bottle size
  • gmallinson

    Excellent product. 5* EBay seller.
    APC Pure Food Grade Hydrogen Peroxide - 3% - 50ml-250ml[50ml]
  • harico6

    First class,thank you.
    APC Pure Food Grade Hydrogen Peroxide - 3% - 50ml-250ml[50ml]
  • pickdebbie1960

    excellent transaction.Thank you
    **OFFER* 70% ISOPROPYL RUBBING ALCOHOL ISOPROPANOL(IPA) 30ml,50ml,100ml & PUMP A
  • wheatleyplastics

    Great speedy service
    Distilled Water 99.99% Ultrapure CHOOSE your size 50ml-25 Litre **High Quality**
  • gptaylor9

    A1 Thank you
    APC Pure Food Grade Hydrogen Peroxide - 9% - 100ml
  • big*dub

    Perfect
    Distilled Water 99.99% Ultrapure CHOOSE your size 50ml-25 Litre **High Quality**
  • jay.pip

    Excellent ebayer. Fast delivery
    APC Pure Food Grade Hydrogen Peroxide - 12% - 50ml-250ml