Potassium Phosphate Monobasic CAS 7778-77-0 Purity >99.5% (Titration) Molecular Biology Grade

Short Description:

Chemical Name: Potassium Phosphate Monobasic

CAS: 7778-77-0

Purity: >99.5% (Titration)

Appearance: White Crystals or Crystalline Powder

Molecular Biology Grade, Commercial Production

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Product Detail

Product Tags

7778-77-0 - Description:

Shanghai Ruifu Chemical Co., Ltd. is the leading supplier of Potassium Phosphate Monobasic (CAS: 7778-77-0) with high quality, commercial production. Ruifu can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Welcome to order. Please contact: alvin@ruifuchem.com

7778-77-0 - Chemical Properties:

Chemical Name	Potassium Phosphate Monobasic
Synonyms	MKP; Potassium Dihydrogen Phosphate; Monopotassium Phosphate; KH₂PO₄; Monopotassium Phosphate, Potassium Dihydrogen Phosphate
CAS Number	7778-77-0
Stock Status	In Stock, Production Capacity 100000 Tons per Year
Molecular Formula	KH2PO4
Molecular Weight	136.09
Density	2.338 g/mL at 25℃(lit.)
Melting Point	252.6℃(lit.)
Boling Point	> 450℃
Water Solubility	222 g/L (20℃)
Sensitive	Hygroscopic
COA & MSDS	Available
Origin	China
Brand	Ruifu Chemical

7778-77-0 - Specifications:

Item	Specifications
Grade	Molecular Biology Grade
Appearance	White Crystals or Crystalline Powder
Purity / Analysis Method	>99.5% (Titration by NaOH, on Dried Basis)
Water (by Karl Fischer)	≤0.20%
Loss on Drying	≤0.20%
Water Insoluble Matter	≤0.002%
Heavy Metals (as Pb)	<10ppm
Arsenic (As)	<3ppm
Iron (Fe)	<10ppm
Lead (Pb)	<5ppm
Chloride (Cl)	<5ppm
Sodium (Na)	<0.02%
Total Nitrogen	<0.001%
Sulfate (SO4)	<0.003%
Copper (Cu)	<5ppm
Fluorides (F)	<10mg/kg
UV Absorption/210nm	≤0.10
UV Absorption/220nm	≤0.06
UV Absorption/230nm	≤0.04
UV Absorption/300nm	≤0.02
UV Absorption/500nm	≤0.02
pH (50g/L,25)	pH of Water Solution 4.2~4.8
Solubility	Clear, Colorless (H2O Soluble 0.1 g/ml at 25℃)
Total Metallic Impurities	≤200ppm
DNase, RNase, Protease	Not Detected
Filter Test	Corresponds to Standard
Test For RP Gradient	Corresponds to Standard
X-Ray Diffraction	Conforms to Structure
Test Standard	Enterprise Standard; FCC
Usage	Buffer; Food Additives; Pharmaceutical Intermediates; etc.

Package & Storage:

Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.

Storage Condition: Store in sealed containers at cool and dry place; Protect from light and moisture.

Advantages:

FAQ:

7778-77-0 - Risk and Safety:

Safety Description S24/25 - Avoid contact with skin and eyes.
UN IDs N/A
Toxicity LD50 skin in rabbit: > 4640mg/kg

7778-77-0 - Application:

Potassium Phosphate Monobasic (CAS: 7778-77-0), (1) It is a commonly used laboratory reagent useful in formulating buffered solutions for applications such as: equilibrium dialysis, high performance liquid chromatography (HPLC), and affinity capillary electrophoresis (ACE). (2) In buffers for pH determination. (3) As feed phosphorus additives; In the food industry, it is used for the manufacture of baked goods, for leavening agent, flavoring agent, fermentation additives, nutritional fortifiers, yeast food. Also used as a buffer, chelating agent. (4) It can be used for the fertilization of rice, wheat, cotton, rape, tobacco, sugar cane, apple and other crops. (5) As a highly efficient fertilizer, it is suitable for all kinds of soil and crops. It can also used as a bacterial culture agent, the flavoring agent for the synthesis of sake and the raw material for making potassium metaphosphate. (6) Used as feed nutritional supplements; As a quality improver, it has effects of improving the complexation metal ions and pH value, increasing the ionic strength of food, and thus improving the adhesion and water holding capacity of food.

7778-77-0 - USP35 Standard:

Monobasic Potassium Phosphate
KH2PO4 136.09
Phosphoric acid, monopotassium salt.
Monopotassium phosphate [7778-77-0].
» Monobasic Potassium Phosphate, dried at 105 for 4 hours, contains not less than 98.0 percent and not more than 100.5 percent of KH2PO4.
Packaging and storage- Preserve in tight containers.
Identification- A solution (1 in 20) responds to the tests for Potassium <191> and for Phosphate <191>.
Loss on drying <731>- Dry it at 105 for 4 hours: it loses not more than 1.0% of its weight.
Insoluble substances- Dissolve 10 g in 100 mL of hot water, filter through a tared filtering crucible, wash the insoluble residue with hot water, and dry at 105 for 2 hours: the residue does not exceed 20 mg (0.2%).
Arsenic, Method I <211>: 3 ppm.
Lead- A solution of 1 g in 20 mL of water contains not more than 5 µg of lead (corresponding to not more than 5 ppm of Pb) when tested as directed in the test for Lead 251.
Heavy metals, Method I <231>- Dissolve 1 g in 25 mL of water: the limit is 0.002%.
Limit of fluoride- Proceed as directed in the test for Fluoride under Dibasic Calcium Phosphate. The limit is 0.001%.
Assay- Transfer about 5 g of Monobasic Potassium Phosphate, previously dried and accurately weighed, to a 250-mL beaker, add 100 mL of water and 5.0 mL of 1 N hydrochloric acid VS, and stir until the assay specimen is completely dissolved. Place the electrodes of a suitable pH meter in the solution, and slowly titrate the excess acid, stirring constantly, with 1 N sodium hydroxide VS to the inflection point occurring at about pH 4. Record the buret reading, and calculate the volume (A), if any, of 1 N hydrochloric acid consumed by the assay specimen. Continue the titration with 1 N sodium hydroxide VS until the inflection point occurring at about pH 8.8 is reached, record the buret reading, and calculate the volume (B) of 1 N sodium hydroxide required in the titration between the two inflection points (pH 4 and 8.8). Each mL of the volume (B A) of 1 N sodium hydroxide is equivalent to 136.1 mg of KH2PO4.