CAS 7778-53-2 MFCD00036295-Potassium phosphate tribasic 磷酸钾，无水 TAO{mole}

Potassium phosphate tribasic 磷酸钾，无水

CAS 7778-53-2 MFCD00036295

化学结构图

SMILES: O=P([O-])([O-])[O-].[K+].[K+].[K+]

化学属性

Mol. Formula	K3O4P
Mol. Weight	212.27
Density	2.564
Solubility	Soluble in water (100 mg/mL). Insoluble in alcohol.
TSCA	Yes
Melting Point	1340 °C
Stability	对湿度敏感
Appearance	无水物或含一分子水的水合物。白色无臭，吸湿性晶体或颗粒。相对密度2.564，易溶于水(51g/100mL，25℃)，不溶于乙醇。1%水溶液的上Ph值约为11.5。ADI 0～0.70(总磷量，以磷计；FAO/WHO，1985)。

别名和识别编码

Chemical Name	Potassium phosphate tribasic
Synonym	Tripotassium phosphate {LY} Tripotassium phosphate {} {LY} Tripotassium phosphate {} {} {LY} Tripotassium phosphate {} {} {} {LY} Tripotassium phosphate {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {} { {} {} {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Tripotassium phosphate {} {} {} {} {} {} {} {} {} {} {} {}
MDL Number	MFCD00036295
PubChem Substance ID	62657
CAS Number	7778-53-2
EC Number	231-907-1
Merck Number	14,7660
Chemical Name Translation	磷酸钾，无水
LabNetwork Molecule ID	LN00193114
InChI	InChI=1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3
Canonical SMILES	O=P(O[K])(O[K])O[K]

信息真实价格透明资金保障专业采购外包团队在线服务

品牌质保精细包装现货库存一流品牌服务

产品应用

很好的缓冲溶剂，广泛用于生化试验。

安全信息

WGK Germany2

Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves Faceshields, Gloves, Goggles

Precautionary statements

P260 Do not breathe dust/fume/gas/mist/vapours/spray. 不要吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
P270 Do not eat, drink or smoke when using this product. 使用本产品时不要吃东西，喝水或吸烟。
P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。
P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
P301+P312
P301+P330+P331
P302+P352
P303+P361+P353
P304+P340
P304+P340+P312
P305+P351+P338
P305+P351+P338+P310
P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
P312 Call a POISON CENTER or doctor/physician if you feel unwell. 如果你感觉不适，呼叫解毒中心或医生/医师。
P321 Specific treatment (see … on this label). 具体治疗（见本标签上的）。
P330 Rinse mouth. 漱口
P332+P313
P337+P313
P362 Take off contaminated clothing and wash before reuse. 脱掉污染的衣服，清洗后方可重新使用
P363 Wash contaminated clothing before reuse. 被污染的衣服洗净后方可重新使用。
P403+P233
P405 Store locked up. 上锁保管。
P501 Dispose of contents/container to..… 处理内容物/容器.....

Hazard Codes C,Xi C Xi

Hazard statements

H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤
H315 Causes skin irritation 会刺激皮肤
H318 Causes serious eye damage 严重伤害眼睛
H319 Causes serious eye irritation 严重刺激眼睛
H335 May cause respiratory irritation 可能导致呼吸道刺激

Signal word Danger

GHS Symbol

Safety Statements

S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
S37 Wear suitable gloves 戴适当手套；
S39 Wear eye/face protection 戴眼睛/面孔保护装置；
S60 This material and its container must be disposed of as hazardous waste 该物质及其容器必须作为危险废物处置；

Risk Statements

R34 Causes burns 会导致灼伤
R36/38 Irritating to eyes and skin 对眼睛和皮肤有刺激性
R37 Irritating to respiratory system 刺激呼吸道
R38 Irritating to skin 刺激皮肤
R41 Risk of serious damage to eyes 有严重损伤眼睛的危险

Storage condition Store at room temperature, keep dry and cool {LY} Store at room temperature, keep dry and cool {} {LY} Store at room temperature, keep dry and cool {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature, keep dry and cool {} {} {} {} {} {

RTECSTC8450000

UN Number UN 1805 8/PG 3

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

其他信息

含量分析:精确称取相当于无水磷酸钾(K3PO4)约8g的试样，放人一盛有40ml水的400ml烧杯中，加1mol/L盐酸100.0ml。将脱二氧化碳的空气流以鼓小泡形式通入溶液30min，以逐出二氧化碳，通气时盖上表面皿以防飞溅损失。用若干毫升水冲洗盖子和烧杯侧壁，插入pH计电极。用1mol/L氢氧化钠滴定至约pH4时出现转折点为止，记录所耗1mol/L氢氧化钠的体积(A)。在防止溶液吸收二氧化碳的条件下，继续用1mol/L氢氧化钠滴定至约pH8.8时出现转折点为止。记录在此滴定中所耗1mol/L氢氧化钠的体积(B)。当A等于或大于2B时，每毫升1mol/L氢氧化钠的B相当于磷酸钾(K3P04)212.3mg。当A小于2B时，每毫升1mol/L氢氧化钠的(A-B)相当于磷酸钾212.3mg。
食品添加剂最大允许使用量最大允许残留量标准:添加剂中文名称允许使用该种添加剂的食品中文名称添加剂功能最大允许使用量（g/kg）最大允许残留量（g/kg）磷酸三钾非碳酸饮料酸度调节剂 1.5
{
所属类别二:无机化工产品: 无机盐: Cm磷化合物及磷酸盐
图谱信息:磷酸钾(7778-53-2)红外图谱(IR1) 磷酸钾(7778-53-2)红外图谱(IR2)
Sigma Aldrich:7778-53-2(sigmaaldrich)
参考质量标准四:参考标准指标名称指标食品级砷(以As计)/%≤ 0.0003 氟化物/%≤ 0.001 重金属(以Pb计)/%≤ 0.002 水不溶物/%≤ 0.2 铅(Pb)/%≤ 0.0005 灼烧失重/%≤ 3
方法三: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。
方法一: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 H3PO4+2KOH→KzHPO4+
磷酸钾价格(试剂级):更新日期产品编号产品名称包装价格 2010/06/21 387680025 磷酸钾 Potassium phosphate, tribasic 97%, pure, anhydrous 2.5 KG 1466元 2010/06/21 387680250 磷酸钾 Potassium phosphate, tribasic 97%, pure, anhydrous 25 GR 201元 2010/06/21 387685000 磷酸钾 Potassium phosphate, tribasic 97%, pure, anhydrous 500 GR 457元
毒性:ADI 0～70mg/kg(以磷计，
用途四: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)。
使用限量:GB 2760-2000(g/kg)：肉制品1；非碳酸饮料1.5；果蔬脱皮，GMP。 FAO/WHO(1984，g/kg)：即食肉汤、羹，其总磷酸盐1.0(以P:0。计)；午餐肉、熟猪前腿肉、洋火腿、熟肉末3(单用或与其他磷酸盐合用量，以P2 O5计)；用于低倍浓缩乳、甜炼乳、稀奶油，其单用量2，与其他稳定剂合用量3(以无水物计)；奶油
鉴别试验:5%试样液的钾试验(IT-27)和磷酸盐试验(IT-26)均呈阳性。