CAS Number: 23605-74-5
EINECS Number: 245-781-0
Molecular Formula: C10H28N2O12P4
Molecular Weight: 492.3 g/mol
Appearance: HMDTMPA is a white crystalline powder at room temperature.
Solubility: It is slightly soluble in water, with a solubility of less than 5%.
Function: HMDTMPA is effective at inhibiting the formation of various types of scale, including calcium carbonate, calcium sulfate, barium sulfate, and ferric oxide. It is particularly effective against calcium sulfate scale.
Technical Specifications:
- Active component (as HMDTMPA): Typically a minimum of 97.0%
- Chloride content: Typically a maximum of 0.5%
- pH of a 1% aqueous solution: Typically a maximum of 2.0
- Iron content: Typically a maximum of 35 mg/L
Applications:
- As a water treatment chemical, HMDTMPA is used to prevent scale formation in systems where water is heated or evaporated, such as in boilers and cooling towers.
- It is also used in oilfield operations for scale control during well stimulation processes like acidizing or fracturing.
- HMDTMPA can also be used in closed-loop water systems to prevent scale buildup that could lead to equipment failure or reduced efficiency.
Storage and Handling: HMDTMPA should be stored in a cool, dry place and is typically packaged in 25 kg bags, bulk bags, or fiber drums. It has a shelf life of up to 10 months when stored properly.
Safety Precautions: HMDTMPA is classified as corrosive (Class 8, UN 3261). It is important to handle it with care, using personal protective equipment such as gloves and eye protection. In the event of contact with skin or eyes, it should be flushed off immediately with plenty of water.