Home > Curriculum Lists > New GCSE Curriculums > GCSE Combined > GCSE OCR B 21st Century
Only available for schools & colleges to order.
Product Code : S0001336-500GBrand: BRECKLAND SOLUTIONSAssay: N/ACAS: 9005-25-8Index No.: Not listedEC No.: 232-679-6Formula: N/ASynonyms: 0Info: SolubleUN Hazard Class: N/AUN Number: N/AUN Packing Group: NA
Q = What is the source of the soluble starch?
A = Our supplier informs us that this is a type of potato starch.
Q = When I add water to the powder, the solution is cloudy and not clear as expected. What am I doing wrong?
A = Hopefully the starch you have is alright – I think it might just need dissolving differently.The best way to make starch powder into solution is to add a little cold water to the starch and mix into a paste. Add boiling water to the paste, stirring all the time. The solution should turn clear, although if it is still not clear, boil briefly until it does turn clear. Allow to cool before use. This does not store for very long, so is best made up fresh.Usually a 1% solution is made. Add a little cold water to 1g starch powder & mix into a paste. Make up to 100ml with boiling water, stirring all the time.
A fab day in Stevenage!06/11/24
Breckland are at Tech Fest 5th Nov !!28/10/24
Tel No: 01785 227227
Lines open: 9am - 5pm
Email: sales@brecklandscientific.co.uk