焦磷酸钾

焦磷酸钾用途

【用途一】
用于无氰电镀、染色、精制陶土等
【用途二】
用作分析试剂、双氧水稳定剂和肥皂的填料
【用途三】
主要用于无氰电镀，代替氰化钠作为电镀的络合剂。也用作电镀的前处理剂和焦磷酸电镀液。配制衣料用洗涤剂组分、金属表面清洗剂和瓶子洗净剂组分、各种清洁剂的添加剂。用作陶瓷工业的黏土分散剂，颜料和染料的分散剂和缓冲剂。漂染工业用于除去水中的少量三价铁离子，提高漂染质量。
【用途四】
在食品工业中用作乳化剂，组织改进剂，螯合剂，还用作面制品用碱水的原料。多与其他缩合磷酸盐合用，通常用于防止水产罐头产生鸟粪石，防止水果罐头变色；提高冰淇淋膨胀度，火腿、香肠的得率，磨碎鱼肉的持水性；改善面类口味及提高得率，防止干酪老化等。
【用途五】
分析试剂，双氧水稳定剂，电镀，肥皂填料。

焦磷酸钾名称

[ CAS 号 ]:
7320-34-5

[ 中文名 ]:
焦磷酸钾

[ 英文名 ]:
potassium pyrophosphate

[中文别名 ]:

焦磷酸四钾

[英文别名 ]:

TKPP
EINECS 230-785-7
MFCD00011393
Tetrapotassium Pyrophosphate Anhydrous

焦磷酸钾物理化学性质

[ 密度 ]:
2.534

[ 沸点 ]:
>1500

[ 熔点 ]:
1109ºC

[ 分子式 ]:
K₄O₇P₂

[ 分子量 ]:
330.336

[ 精确质量 ]:
329.766754

[ PSA ]:
155.23000

[ LogP ]:
0.94120

[ 外观性状 ]:
白色粉末或块状。相对密度2.534。熔点1109℃。溶于水，不溶于乙醇。水溶液呈碱性。25℃时100g水中的溶解度为187 g。浓度为1％的水溶液pH=10.2。焦磷酸钾具有其他缩合磷酸盐的所有性质。

[ 储存条件 ]:
室温

[ 水溶解性 ]:
SOLUBLE

焦磷酸钾MSDS

详细MSDS(安全技术说明书)

焦磷酸钾毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: JL6735000

CHEMICAL NAME :: Diphosphoric acid, tetrapotassium salt

CAS REGISTRY NUMBER :: 7320-34-5

LAST UPDATED :: 199710

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: O7-P2.4K

HEALTH HAZARD DATA

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, 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 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 273 gm/kg/13W-C

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: ESKHA5 Eisei Shikenjo Hokoku. Bulletin of the Institute of Hygienic Sciences. (Kokuritsu Eisei Shikenjo Kagaku, 18-1 Bushitsu Johobu, Setagaya-ku, Tokyo 158, Japan) V.1- 1886- Volume(issue)/page/year: (106),66,1988 *** 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 - 80602 No. of Facilities: 25781 (estimated) No. of Industries: 151 No. of Occupations: 89 No. of Employees: 164878 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80602 No. of Facilities: 19789 (estimated) No. of Industries: 168 No. of Occupations: 127 No. of Employees: 572734 (estimated) No. of Female Employees: 227874 (estimated)

焦磷酸钾安全信息

[ 符号 ]:

GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H319

[ 警示性声明 ]:
P305 + P351 + P338

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

[ 危害码 (欧洲) ]:
Xi:Irritant

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S36

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
2

[ RTECS号 ]:
JL6735000

[ 海关编码 ]:
2835399000

焦磷酸钾制备

1.中和煅烧法将食品级30%磷酸加入中和器，在搅拌下缓慢地加入食品级苛性钾溶液进行中和反应，控制pH值在8.4为宜，把反应后的溶液加热，并加入活性炭脱色，过滤除去不溶物，澄清滤液加热至120～124℃进行蒸发浓缩，经冷却至20℃以下析出结晶，离心分离，得到三水合磷酸氢二钾，加热至120～130℃脱去结晶水，变成无水磷酸氢二钾，把它加入煅烧炉在500～600℃下进行煅烧聚合，经冷却，制得食用焦磷酸钾成品。其反应方程式如下：

制得的焦磷酸钾成品与0.1 mol/L硝酸银溶液反应时，以没有正磷酸银沉淀黄色出现为合格。

2.如果将磷酸氢二钾在350～400℃时加热2～3h使之脱水，很容易制得一缩二磷酸钾。产物在干燥器中冷却，在干燥气流中粉碎、储存。

焦磷酸钾海关

[ 海关编码 ]: 2835399000

焦磷酸钾文献

Transgene silencing of sucrose synthase in alfalfa (Medicago sativa L.) stem vascular tissue suggests a role for invertase in cell wall cellulose synthesis.

BMC Plant Biol. 15 , 283, (2015)

Alfalfa (Medicago sativa L.) is a widely adapted perennial forage crop that has high biomass production potential. Enhanced cellulose content in alfalfa stems would increase the value of the crop as a...

Mapping the Interaction of B Cell Leukemia 3 (BCL-3) and Nuclear Factor κB (NF-κB) p50 Identifies a BCL-3-mimetic Anti-inflammatory Peptide.

J. Biol. Chem. 290 , 15687-96, (2015)

The NF-κB transcriptional response is tightly regulated by a number of processes including the phosphorylation, ubiquitination, and subsequent proteasomal degradation of NF-κB subunits. The IκB family...

Determining the effective emetic dosage of tetrapotassium pyrophosphate (TKPP) in dogs.

J. Toxicol. Sci. 7(2) , 151-8, (1982)

The effect of TKPP on emesis was examined in adult "conditioned random source" mongrel dogs. Only dogs that exhibited emesis with CuSO4, were used. The effect of dosage and concentration of TKPP on em...

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