Potassium Dihydrogen Phosphate


Product # 2904
Name Potassium Dihydrogen Phosphate
Synonyms KDP, Monopotassium phosphate
Formula KH2PO4
Purity 99.9%
CAS Number 7778-77-0
Molecular Weight 136.09
Color & Form White crystalline solid
Melting Point 400° C decomposes
Specific Gravity 1.98 gm/ml
Solubility 22 g/100ml @ 25° C


1 kg $70.00
5 kg $230.00
  • For other quantities or purities not listed, please request a quotation. We can offer many items in bulk or custom packaging.
  • All pricing is subject to confirmation at the time the order is placed.

Related Products

Product # Name Purity
15113 Potassium Phosphate, monobasic ACS
2905 Potassium Dihydrogen Phosphate 99.999%


Transportation Information Not a dangerous good
Pictogram Pictogram: Irritant 
Signal Word Warning
Hazardous Statements

H303  May be harmful if swallowed.

H315  Causes skin irritation.

H320  Causes eye irritation.

H335  May cause respiratory irritation.

Precautionary Phrases

P264  Wash hands thoroughly after handling.

P270  Do not eat, drink or smoke when using this product.

P280  Wear protective gloves/protective clothing/eye protection/face protection.

P362  Take off contaminated clothing and wash before reuse.

P301+P312  IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352  IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338  IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Detailed Safety and Handling Information can be found on our Safety Data Sheet (SDS).

Featured Element: Bismuth

Bismuth is a brittle crystalline which is slightly pinkish in its elemental form.

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