磷酸钾

磷酸钾用途

【用途】
乳化剂，钾的强化剂；调味剂；肉类黏结剂；配制面食制品用碱水。按FAO(1984)规定，
【用途】
及限量为：即食肉汤、羹；其总磷酸盐1000mg/kg(以P2O5计)；加工干酪，其总磷酸盐用量9g/kg(以磷计)；奶油粉，奶粉5g/kg(单用或与其他稳定剂合用量)；午餐肉、熟猪肉前腿肉、洋火腿、熟肉末3g/kg(单用或其他磷酸盐合用量，以P2O5计)；用于低倍浓缩乳、甜炼乳、稀奶油，其单用量2g/kg，与其他稳定剂合用量3g/kg(以无水物计)；冷饮2g/kg(单用或与其他磷酸盐合用量，以P2 O5计)。
【用途】
在食品工业中用作乳化剂，钾的强化剂，调味剂，肉类黏结剂。用于配制面食制品用碱水。
【用途】
用于制造液体肥皂、精制汽油、优质纸张。是磷钾肥料。可用作锅炉软水剂。也用于医药。
【用途】
用作分析试剂、缓冲剂和软水剂，也用于液体肥皂的制造等
【用途】
用于制造液体肥皂、优质纸张、精制汽油；食品工业用作乳化剂、强化剂、调味剂、肉类粘结剂；也可用作肥料

磷酸钾名称

[ CAS 号 ]:
7778-53-2

[ 中文名 ]:
磷酸三钾

[ 英文名 ]:
Potassium phosphate

[中文别名 ]:

[英文别名 ]:

Potassium phosphate
Potassium orthophosphate
MFCD00036295
EINECS 231-907-1
Tripotassium phosphate
Phosphoric acid tripotassium salt
Tripotassium orthophosphate
Caswell No. 700A
Phosphoric acid,tripotassium salt
Potassium phosphate, tribasic

磷酸钾物理化学性质

[ 密度 ]:
2.564 g/mL at 25 °C(lit.)

[ 沸点 ]:
158ºC at 760 mmHg

[ 熔点 ]:
1340 °C

[ 分子式 ]:
K₃O₄P

[ 分子量 ]:
212.266

[ 精确质量 ]:
211.844543

[ PSA ]:
96.06000

[ LogP ]:
0.38600

[ 外观性状 ]:
白色粉末

[ 储存条件 ]:
室温，干燥，密封

[ 稳定性 ]:
Stable. Incompatible with strong oxidizing agents, moisture.

[ 水溶解性 ]:
50.8 g/100 mL (25 ºC)

磷酸钾MSDS

详细MSDS(安全技术说明书)

磷酸钾毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TC8450000

CHEMICAL NAME :: Phosphoric acid, tripotassium salt

CAS REGISTRY NUMBER :: 7778-53-2

LAST UPDATED :: 199710

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: O4-P.3K

MOLECULAR WEIGHT :: 212.27

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0571153 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4640 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Gastrointestinal - other changes

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0571153

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >4640 mg/kg

TOXIC EFFECTS :: Skin and Appendages - dermatitis, irritative (after systemic exposure) Skin and Appendages - dermatitis, other (after systemic exposure)

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0571153 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83451 No. of Facilities: 2277 (estimated) No. of Industries: 26 No. of Occupations: 19 No. of Employees: 7863 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83451 No. of Facilities: 4300 (estimated) No. of Industries: 53 No. of Occupations: 49 No. of Employees: 53015 (estimated) No. of Female Employees: 10283 (estimated)

磷酸钾安全信息

[ 符号 ]:

GHS05, GHS07

[ 信号词 ]:
Danger

[ 危害声明 ]:
H318-H335

[ 警示性声明 ]:
P280-P304 + P340 + P312-P305 + P351 + P338 + P310

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xi: Irritant;C: Corrosive;

[ 风险声明 (欧洲) ]:
R38;R41

[ 安全声明 (欧洲) ]:
S26-S39-S45-S36/37/39

[ 危险品运输编码 ]:
UN 1805 8/PG 3

[ WGK德国 ]:
2

[ RTECS号 ]:
TC8450000

[ 海关编码 ]:
2835240000

磷酸钾制备

（1）中和法将50$磷酸溶液加入耐腐蚀反应罐中，按磷酸：氢氧化钾=1：2摩尔配比加入：30％氢氧化钾溶液，在搅拌下进行中和反应，控制pH8.5～9左右，生成磷酸氢二钾溶液。然后送至二次中和器中加入30％氢氧化钾溶液进行中和反应，终点控制pH=14，生成磷酸三钾溶液，经蒸发浓缩至相对密度1.38～1.46时为止，再经冷却结晶器冷却至60℃以下后，进行离心分离，制得磷酸三钾成品。也可不经冷却结晶器而直接趁热把浓缩后的磷酸三钾溶液进行离心分离而得。分离的母液则返回蒸发器。其反应方程式如下：

（2）由除砷的食用级磷酸与KOH溶液反应，经蒸发浓缩，析出结晶而得一水物。加热至300- 500℃成无水盐。

3.按化学计量将KO2与P4O10放入坩埚中，仔细混合均匀。放入马弗炉中于320～920℃下加热合成。

4.采用中和法。将50%磷酸溶液加入耐腐蚀反应罐中，按磷酸∶氢氧化钾＝1∶2摩尔比加入30%的氢氧化钾溶液，在搅拌下进行中和反应，控制ph=5～9左右，生成磷酸氢二钾溶液。然后送至二次中和器中，加入30%的氢氧化钾溶液进行中和反应，终点控制ph=4，成磷酸三钾溶液，经蒸发浓缩至相对密度1.38～1.46时为止，再经冷却结晶器冷却至60℃以下，进行离心分离，制得磷酸三钾成品。也可不经冷却结晶器而直接趁热将浓缩后的磷酸三钾溶液进行离心分离而得。分离的母液则返回蒸发器。其反应式如下。

5.将磷酸钾溶于蒸馏水，形成溶液，然后通入2-3h氨气，待结晶完全后，在干燥空气中抽干，得三水合
磷酸钾结晶。

磷酸钾海关

[ 海关编码 ]: 2835240000

磷酸钾文献

Salicylic acid signaling controls the maturation and localization of the arabidopsis defense protein ACCELERATED CELL DEATH6.

Mol. Plant 7(8) , 1365-83, (2014)

ACCELERATED CELL DEATH6 (ACD6) is a multipass membrane protein with an ankyrin domain that acts in a positive feedback loop with the defense signal salicylic acid (SA). This study implemented biochemi...

A new enabling proteomics methodology to investigate membrane associated proteins from parasitic nematodes: case study using ivermectin resistant and ivermectin susceptible isolates of Caenorhabditis elegans and Haemonchus contortus.

Vet. Parasitol. 207(3-4) , 266-75, (2015)

The mechanisms involved in anthelmintic resistance (AR) are complex but a greater understanding of AR management is essential for effective and sustainable control of parasitic helminth worms in lives...

A survey of the interactome of Kaposi's sarcoma-associated herpesvirus ORF45 revealed its binding to viral ORF33 and cellular USP7, resulting in stabilization of ORF33 that is required for production of progeny viruses.

J. Virol. 89(9) , 4918-31, (2015)

The ORF45 protein of Kaposi's sarcoma-associated herpesvirus (KSHV) is a gammaherpesvirus-specific immediate-early tegument protein. Our previous studies have revealed its crucial roles in both early ...

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磷酸钾