磷酸二氢钾（CAS 7778-77-0）：分子式 H2KO4P、分子量 136.086；类别 食品添加剂。
| CAS号 | 7778-77-0 |
|---|---|
| 分子式 | H2KO4P |
| 分子量 | 136.086 |
| 应用领域 | Uses: CIR ingredient: Potassium Phosphate、Used in buffers (determination of pH、pharmaceutical production、urinary acidifier、paper processing、baking powder、and food)、nutrient solutions、yeast foods、special liquid fertilizers、sonar systems and other electronic applications、[HSDB] Used as a nutritional supplement in foods、a nonlinear optical material for laser use、and in wastewater treatment、[CHEMINFO]、Pulp and Paper Processing [Category: Industry]、Sewer and Wastewater Treatment [Category: Industry]、For monopotassium phosphate (USEPA、OPP Pesticide Code: 076413) ACTIVE products with label matches.、SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal、state and local authorities must be consulted for currently approved uses.、In buffers for determination of pH. Pharmaceutic aid (buffering agent).、Baking powder、buffer and sequestrant、lab reagent.、This product is used as a buffer in food stuffs、in emulsifying salts for processed cheese products、or phosphate mixes for phosphate meat products and as a culture nutrient in pharmaceutical manufacture.、For more Uses (Complete) data for MONOPOTASSIUM DIHYDROGEN PHOSPHATE (9 total)、please visit the HSDB record page.、Use Classification: Food additives、Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients、Food Additives -> ACIDITY_REGULATOR、SEQUESTRANT、YEAST_FOOD -> JECFA Functional Classes、Cosmetics -> Buffering、Industry Uses: Adhesion、cohesion promoter、Fixing agent (mordant)、Cleaning agent、Corrosion inhibitor、Not Known or Reasonably Ascertainable、Soil amendments (fertilizers)、Processing aids not otherwise specified、pH regulating agent、Flavoring and nutrient、Binder、Anti-scaling agent、Consumer Uses: pH regulating agent、Household Products: Information on 50 consumer products that contain Potassium phosphate in the following categories is provided:、• Commercial、Institutional、• Inside the Home、• Landscaping、Yard、• Personal Care、Methods of Manufacturing: Potassium monophosphates are usually produced by the same process as the corresponding sodium salts、i.e.、from phosphoric acid and potassium hydroxide. For KH2PO4、the cheaper potassium chloride is also used instead of KOH. Various methods have been suggested for quantitative removal of the hydrogen chloride formed: use of ion exchangers、long-chain tertiary amines、or distillation with octane.、Action of phosphoric acid on potassium carbonate.、Formulations、Preparations: Injection、4.4 mEq of potassium ion and 3 mM of phosphorus (provided by potassium phosphate、monobasic 224 mg and potassium phosphate、dibasic 236 mg、mL.、Grades: Technical、CP、FCC (Food Chemicals Codex)、First Choice Foliar Supreme Fungucide (Loveland Products、Inc.) Potassium phosphate、monobasic 31.1%、Sulfur 31.1%、Ekspunge (Lidochem、monobasic 100%、First Choice Phortress Fungicide (Loveland Products、monobasic 40.8%、Mono- and di- potassium salts of phosphorous acid 28.1%、U.S. Production: 2023: 40、000、000 - <55、000 lb、2022: 85、000 - <100、2021: 85、2020: 70、000 - <85、2023: 326、627 lb、2022: 327、593 lb、2021: 281、567 lb、2020: 244、141 lb、(1976) 1.82-2.72X10+9 GRAMS (CONSUMPTION)、(1990) >10 thousand-500 thousand pounds、(1994) >10 thousand-500 thousand pounds、(1998) >10 thousand-500 thousand pounds、For more U.S. Production (Complete) data for MONOPOTASSIUM DIHYDROGEN PHOSPHATE (7 total)、General Manufacturing Information: Not Known or Reasonably Ascertainable、All Other Chemical Product and Preparation Manufacturing、Construction、Fabricated Metal Product Manufacturing、Petroleum Refineries、All Other Basic Organic Chemical Manufacturing、Miscellaneous Manufacturing、Machinery Manufacturing、Food、beverage、and tobacco product manufacturing、Pesticide、Fertilizer、and Other Agricultural Chemical Manufacturing、Utilities、Pharmaceutical and Medicine Manufacturing、Agriculture、Forestry、Fishing and Hunting、Computer and Electronic Product Manufacturing、Electrical Equipment、Appliance、and Component Manufacturing、Transportation Equipment Manufacturing、Synthetic Rubber Manufacturing、Petrochemical Manufacturing、All Other Basic Inorganic Chemical Manufacturing、Primary Metal Manufacturing、Phosphoric acid、potassium salt (1:1): ACTIVE、potassium salt (1:?): ACTIVE |
| 类别 | 酸度调节剂|食品加工助剂|营养强化剂 |
登记用途：Uses: CIR ingredient: Potassium Phosphate、Used in buffers (determination of pH、pharmaceutical production、urinary acidifier、paper processing、baking powder、and food)、nutrient solutions、yeast foods、special liquid fertilizers、sonar systems and other electronic applications、[HSDB] Used as a nutritional supplement in foods、a nonlinear optical material for laser use、and in wastewater treatment、[CHEMINFO]、Pulp and Paper Processing [Category: Industry]、Sewer and Wastewater Treatment [Category: Industry]、For monopotassium phosphate (USEPA、OPP Pesticide Code: 076413) ACTIVE products with label matches.、SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal、state and local authorities must be consulted for currently approved uses.、In buffers for determination of pH. Pharmaceutic aid (buffering agent).、Baking powder、buffer and sequestrant、lab reagent.、This product is used as a buffer in food stuffs、in emulsifying salts for processed cheese products、or phosphate mixes for phosphate meat products and as a culture nutrient in pharmaceutical manufacture.、For more Uses (Complete) data for MONOPOTASSIUM DIHYDROGEN PHOSPHATE (9 total)、please visit the HSDB record page.、Use Classification: Food additives、Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients、Food Additives -> ACIDITY_REGULATOR、SEQUESTRANT、YEAST_FOOD -> JECFA Functional Classes、Cosmetics -> Buffering、Industry Uses: Adhesion、cohesion promoter、Fixing agent (mordant)、Cleaning agent、Corrosion inhibitor、Not Known or Reasonably Ascertainable、Soil amendments (fertilizers)、Processing aids not otherwise specified、pH regulating agent、Flavoring and nutrient、Binder、Anti-scaling agent、Consumer Uses: pH regulating agent、Household Products: Information on 50 consumer products that contain Potassium phosphate in the following categories is provided:、• Commercial、Institutional、• Inside the Home、• Landscaping、Yard、• Personal Care、Methods of Manufacturing: Potassium monophosphates are usually produced by the same process as the corresponding sodium salts、i.e.、from phosphoric acid and potassium hydroxide. For KH2PO4、the cheaper potassium chloride is also used instead of KOH. Various methods have been suggested for quantitative removal of the hydrogen chloride formed: use of ion exchangers、long-chain tertiary amines、or distillation with octane.、Action of phosphoric acid on potassium carbonate.、Formulations、Preparations: Injection、4.4 mEq of potassium ion and 3 mM of phosphorus (provided by potassium phosphate、monobasic 224 mg and potassium phosphate、dibasic 236 mg、mL.、Grades: Technical、CP、FCC (Food Chemicals Codex)、First Choice Foliar Supreme Fungucide (Loveland Products、Inc.) Potassium phosphate、monobasic 31.1%、Sulfur 31.1%、Ekspunge (Lidochem、monobasic 100%、First Choice Phortress Fungicide (Loveland Products、monobasic 40.8%、Mono- and di- potassium salts of phosphorous acid 28.1%、U.S. Production: 2023: 40、000、000 - <55、000 lb、2022: 85、000 - <100、2021: 85、2020: 70、000 - <85、2023: 326、627 lb、2022: 327、593 lb、2021: 281、567 lb、2020: 244、141 lb、(1976) 1.82-2.72X10+9 GRAMS (CONSUMPTION)、(1990) >10 thousand-500 thousand pounds、(1994) >10 thousand-500 thousand pounds、(1998) >10 thousand-500 thousand pounds、For more U.S. Production (Complete) data for MONOPOTASSIUM DIHYDROGEN PHOSPHATE (7 total)、General Manufacturing Information: Not Known or Reasonably Ascertainable、All Other Chemical Product and Preparation Manufacturing、Construction、Fabricated Metal Product Manufacturing、Petroleum Refineries、All Other Basic Organic Chemical Manufacturing、Miscellaneous Manufacturing、Machinery Manufacturing、Food、beverage、and tobacco product manufacturing、Pesticide、Fertilizer、and Other Agricultural Chemical Manufacturing、Utilities、Pharmaceutical and Medicine Manufacturing、Agriculture、Forestry、Fishing and Hunting、Computer and Electronic Product Manufacturing、Electrical Equipment、Appliance、and Component Manufacturing、Transportation Equipment Manufacturing、Synthetic Rubber Manufacturing、Petrochemical Manufacturing、All Other Basic Inorganic Chemical Manufacturing、Primary Metal Manufacturing、Phosphoric acid、potassium salt (1:1): ACTIVE、potassium salt (1:?): ACTIVE。
磷酸二氢钾 是一种食品级化合物，登记 CAS 号为 7778-77-0，分子式 H2KO4P（分子量 136.086），归属于食品添加剂大类化工原料。
登记 CAS 号：7778-77-0
其分子式 H2KO4P 由 2 个氢、1 个钾、4 个氧、1 个磷 组成。
别名/同义词：磷酸二氢钾 · Potassium Phosphate Monobasic · Potassium Phosphates
所属分类：酸度调节剂 / 食品添加剂 / 食品添加剂
磷酸二氢钾 的 CAS 登记号为 7778-77-0。
分子式 H2KO4P，分子量 136.086。
别名/同义词：磷酸二氢钾、Potassium Phosphate Monobasic、Potassium Phosphates。
登记用途：Uses: CIR ingredient: Potassium Phosphate、Used in buffers (determination of pH、pharmaceutical production、urinary acidifier、paper processing、baking powder、and food)、nutrient solutions、yeast foods、special liquid fertilizers、sonar systems and other electronic applications、[HSDB] Used as a nutritional supplement in foods、a nonlinear optical material for laser use、and in wastewater treatment、[CHEMINFO]、Pulp and Paper Processing [Category: Industry]、Sewer and Wastewater Treatment [Category: Industry]、For monopotassium phosphate (USEPA、OPP Pesticide Code: 076413) ACTIVE products with label matches.、SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal、state and local authorities must be consulted for currently approved uses.、In buffers for determination of pH. Pharmaceutic aid (buffering agent).、Baking powder、buffer and sequestrant、lab reagent.、This product is used as a buffer in food stuffs、in emulsifying salts for processed cheese products、or phosphate mixes for phosphate meat products and as a culture nutrient in pharmaceutical manufacture.、For more Uses (Complete) data for MONOPOTASSIUM DIHYDROGEN PHOSPHATE (9 total)、please visit the HSDB record page.、Use Classification: Food additives、Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients、Food Additives -> ACIDITY_REGULATOR、SEQUESTRANT、YEAST_FOOD -> JECFA Functional Classes、Cosmetics -> Buffering、Industry Uses: Adhesion、cohesion promoter、Fixing agent (mordant)、Cleaning agent、Corrosion inhibitor、Not Known or Reasonably Ascertainable、Soil amendments (fertilizers)、Processing aids not otherwise specified、pH regulating agent、Flavoring and nutrient、Binder、Anti-scaling agent、Consumer Uses: pH regulating agent、Household Products: Information on 50 consumer products that contain Potassium phosphate in the following categories is provided:、• Commercial、Institutional、• Inside the Home、• Landscaping、Yard、• Personal Care、Methods of Manufacturing: Potassium monophosphates are usually produced by the same process as the corresponding sodium salts、i.e.、from phosphoric acid and potassium hydroxide. For KH2PO4、the cheaper potassium chloride is also used instead of KOH. Various methods have been suggested for quantitative removal of the hydrogen chloride formed: use of ion exchangers、long-chain tertiary amines、or distillation with octane.、Action of phosphoric acid on potassium carbonate.、Formulations、Preparations: Injection、4.4 mEq of potassium ion and 3 mM of phosphorus (provided by potassium phosphate、monobasic 224 mg and potassium phosphate、dibasic 236 mg、mL.、Grades: Technical、CP、FCC (Food Chemicals Codex)、First Choice Foliar Supreme Fungucide (Loveland Products、Inc.) Potassium phosphate、monobasic 31.1%、Sulfur 31.1%、Ekspunge (Lidochem、monobasic 100%、First Choice Phortress Fungicide (Loveland Products、monobasic 40.8%、Mono- and di- potassium salts of phosphorous acid 28.1%、U.S. Production: 2023: 40、000、000 - <55、000 lb、2022: 85、000 - <100、2021: 85、2020: 70、000 - <85、2023: 326、627 lb、2022: 327、593 lb、2021: 281、567 lb、2020: 244、141 lb、(1976) 1.82-2.72X10+9 GRAMS (CONSUMPTION)、(1990) >10 thousand-500 thousand pounds、(1994) >10 thousand-500 thousand pounds、(1998) >10 thousand-500 thousand pounds、For more U.S. Production (Complete) data for MONOPOTASSIUM DIHYDROGEN PHOSPHATE (7 total)、General Manufacturing Information: Not Known or Reasonably Ascertainable、All Other Chemical Product and Preparation Manufacturing、Construction、Fabricated Metal Product Manufacturing、Petroleum Refineries、All Other Basic Organic Chemical Manufacturing、Miscellaneous Manufacturing、Machinery Manufacturing、Food、beverage、and tobacco product manufacturing、Pesticide、Fertilizer、and Other Agricultural Chemical Manufacturing、Utilities、Pharmaceutical and Medicine Manufacturing、Agriculture、Forestry、Fishing and Hunting、Computer and Electronic Product Manufacturing、Electrical Equipment、Appliance、and Component Manufacturing、Transportation Equipment Manufacturing、Synthetic Rubber Manufacturing、Petrochemical Manufacturing、All Other Basic Inorganic Chemical Manufacturing、Primary Metal Manufacturing、Phosphoric acid、potassium salt (1:1): ACTIVE、potassium salt (1:?): ACTIVE。
所属分类：酸度调节剂 / 食品加工助剂 / 营养强化剂。
磷酸二氢钾（CAS 7778-77-0）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 7778-77-0 |
|---|---|
| PubChem CID | 516951 |
| Molecular formula | KH2PO4 |
| IUPAC name | potassium dihydrogen phosphate |
| UNII (FDA) | 4J9FJ0HL51 |
| Molecular Weight | 136.086 |
|---|---|
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 135.93277702 |
| Monoisotopic Mass | 135.93277702 |
| Topological Polar Surface Area | 80.6 |
| Heavy Atom Count | 6 |
| Melting Point | 253 °C |
|---|---|
| Density | 2.34 g/cu cm |
| Density | 2.34 g/cm³ |
| pH | pH = 4.4 to 4.7 |
Potassium dihydrogen phosphate; 7778-77-0; Potassium phosphate monobasic; MONOPOTASSIUM PHOSPHATE; Monobasic potassium phosphate; Potassium acid phosphate; Phosphoric acid, monopotassium salt; Potassium phosphate, monobasic; Monopotassium monophosphate; Monopotassium orthophosphate; Monopotassium dihydrogen phosphate; potassium biphosphate; Potassium dihydrogen orthophosphate; KH2PO4; Sorensen's potassium phosphate; Potassium dihydrogenorthophosphate
| Regulatory & Food Contact | FDA Substance added to food: MALTING OR FERMENTING AID, NUTRIENT SUPPLEMENT, PH CONTROL AGENT, STABILIZER OR FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ACIDITY_REGULATOR; SEQUESTRANT; YEAST_FOOD: Food Additives MALTING OR FERMENTING AID, NUTRIENT SUPPLEMENT, PH CONTROL AGENT, STABILIZER OR THICKENER Group MTDI for phosphorus from all sources, expressed as P TRS 683-JECFA 26/25 |
|---|---|
| GHS notification summary | 90.7% (794 / 875) |
| GHS notification summary | 90.7% (794 / 875) |
|---|
This chemical does not meet GHS hazard criteria for 90.7% (794 of 875) of all reports.
Reported as not meeting GHS hazard criteria by 794 of 875 companies (only 9.3% companies provided GHS information). For more detailed information, please visit ECHA C&L website.
Potassium Phosphates · CAS 7778-77-0 · KH2PO4. UNII 4J9FJ0HL51. Melting Point: 253 °C; Density: 2.34 g/cu cm; Density: 2.34 g/cm³.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: Potassium Phosphate Monobasic