Phenolphthalein 1%
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£49.87
Fast, Safe Delivery
90% of orders are delivered
next-day by ADR-approved couriers
Quality Accredited
Accredited to ISO 9001, ISO 14001,
ISO 13485 and ISO 45001
Free Support
Free pre- and post-sales technical support from our expert team
Need Phenolphthalein 1%?
We supply phenolphthalein in 500ml containers, with discounts available on bulk orders. This is our most popular phenolphthalein product, but we also offer a 0.05 w/v solution. We also offer more options with all our products, from customised labelling to specific pack sizes. Simply contact us for further information or free technical advice.Phenolphthalein is a Popular pH Indicator
With the formula C20H14O4, phenolphthalein is a common pH indicator, turning colourless in acidic solutions or pink in alkaline solutions. As such, it’s very popular to titrate acid-base reactions. This compound is insoluble in water and is typically prepared in alcohol solutions.It works because the molecule version is colourless, but the ionic version is pink. When a base is added to the solution, the balance between molecule and ions is altered towards the ionic side, resulting in more H ions being removed from the molecule (with the subsequent production of phenolphthalein ion, which is pink). As a result, for pH below 8.2, the solution is colourless, but changes to pink when pH reaches 10.Other Uses of Phenolphthalein
Despite being a popular pH indicator, this compound can be used in other applications:- As a laxative, but its popularity is decreasing over fears of being carcinogenic after prolonged use
- In the Kastle-Meyer test to identify the presence of blood. In this case, a sample suspected of containing blood is treated with alcohol and phenolphthalein, followed by a few drops of hydrogen peroxide. If the sample contains haemoglobin, it turns pink. This is commonly used as the first analysis for its easiness, with the added bonus of not destroying the sample, which can later be used for other tests.
Friendly Customer Service Team
We’re are very proud of our excellent customer service team. If you need assistance, simply contact us for advice. A member of staff will be available to help you before, during and after your order to ensure our product meets your needs.Please note: we only deliver to registered UK businesses at non-residential addresses with a minimum order value of £100 before VAT
We only supply to mainland UK, contact us on 0800 9555 798 for rates to Ireland.Please notify us if you have specific delivery requirements such as restricted access, requirement for a tail-lift delivery vehicle or pallet truck. Failure to notify us of a special delivery instructions can incur additional charges from our carriers.Need Bespoke Chemicals?
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Phenolphthalein 1% Specification
Phenolphthalein 1% Hazards
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Phenolphthalein 1% Safety & Storage
Phenolphthalein 1% Delivery
How do you calculate your delivery costs?
As many of the chemicals we supply are hazardous, we are legally obligated to use ADR licensed couriers who are specialists in carrying such goods. Because these couriers are specialists they do cost more than most regular delivery services but you can rest assured that your order will reach you safely and legally.
What is an ADR courier?
An ADR courier is specially trained and licensed to carry chemicals that are classed as hazardous for transport.
Can I collect my items from your warehouse?
Yes, but please contact us to prearrange this. Depending on the quantity of hazardous chemicals you want to collect, you may need to have applicable training or a current ADR licence to legally transport them away from our premises. We may not able to release goods without proof of this.
Can you deliver directly to my customers?
Yes, we’re happy to deliver directly to your customers. The goods will arrive with a delivery note which will not contain any invoice details. We can even include your logo and branding on the product labels. Contact us for more information.
How do I find out the delivery cost for my order?
If you want to find the exact delivery charge for an item or order, simply add the item or items you’re interested in to your basket and the delivery charge as well as any VAT will be calculated and itemised for you. No card details are taken at this point so you’re under no obligation to make a purchase.
How long does delivery take?
Firm delivery date within 24 hours. We always dispatch orders as soon as possible but please note that non-stock items can take around 5 days to reach you. Please contact us before ordering if you require an estimated delivery date or see our delivery information for more information.
Do you deliver on bank holidays?
Unfortunately not, our couriers only deliver on working days from Monday to Friday.
Can you ship to locations outside of mainland UK?
We cannot accept overseas orders on our website, however in some cases we are able to ship outside of mainland UK. Please contact us for further information.
Can I have a timed delivery slot?
We can offer an AM delivery service for some regions of the UK, please contact us for information before placing your order.
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