30ml Potassium Chloride electrolyte solution

HI-7041S Zero Oxygen solution, 30ml bottle HI-7041S is designed to refill the electrolyte solution for polarographic dissolved oxygen probes. Polarographic sensor technology is based on the Ross and Clark polarographic measurement method. An oxygen probe is composed of a platinum electrode and a solid silver electrode. The HI-7041S is a concentrated Potassium Chloride solution held in place over the electrode by a PTFE (Polytetrafluoroethylene) membrane. With polarographic technology, an external voltage is applied to the platinum cathode, silver anode, electrolyte solution and gas-permeable membrane to establish a current that is proportional to the concentration of oxygen in a solution. Purchasing chemicals Can I buy chemicals as a private individual? The majority of chemicals can be purchased by private individuals but there are a number of products which are restricted for a number of reasons. These include Hazardous chemicals, weapon and drug precursor chemicals and other restricted chemicals. What's the process for buying Chemicals? Business User - You should have an account with Allschoolabs so we can verify your status, for online purchases you need to be registered on the website against that business account and logged in. For hazardous and restricted chemicals you may need to undergo an additional check. To facilitate this you should provide a company number when making a purchase. New companies or sole traders may need to provide additional proof of a trading business to ensure we can fulfil your delivery. These checks may add to the delivery times for these items, The delivery time period will not start until the chemical check has been completed; for clarification please phone 01954233110 Private user - For the purchase of Non-Hazardous chemicals you should be a registered user of the website and be logged in to make these purchases. Guest checkouts for hazardous or restricted chemicals will be cancelled and refunded. Delivery to Home addresses? Allschoolabs use a specialist chemicals courier to deliver chemicals, they will not deliver any hazardous chemicals to a residential address. These must be sent to a business address. Home office license scheme We are currently unable to supply chemicals to people who possess a home office license for private individuals under that scheme. Home office scheme for details click here Are Allschoolabs chemicals suitable for clinical or other medicinal use? Allschoolabs supply chemicals for laboratory use only, they are not suitable or recommended for any other use. Are Allschoolabs chemicals suitable for food use? Allschoolabs supply chemicals for laboratory use only, they are not suitable or recommended for food use. Feefo Reviews