Warning: If pH Up and pH Down come into contact with each other they react violently and even in small quantities, mixing them can have an explosive result. Always make sure that the two liquids NEVER come into contact with each other as this can cause a violent or explosive reaction. Ideally use separate syringes, beakers or pipettes for the 2 liquids, or make sure that they are washed out thoroughly after using one before using them for the other. Be very careful when handling pH Up and pH Down as they are both corrosive and will cause irritation to skin and burns on clothing. Keep out of the reach of children and take appropriate care and precautions when using. Always replace the cap on the bottle and wash out syringes, beakers and pipettes after using them with either of these substances. In particular, they will perish the rubber plunger in syringes if not washed out. If pH Up or pH Down makes contact with eyes, wash with copious amounts of water and seek medical advice immediately. If it is accidentally ingested, seek medical advice. For more info on handling aggressive liquids, call our team on 01782 749955.