Sodium polyphosphate - AR , CAS No.68915-31-1

CAS: 68915-31-1 Cat. No.: S165313 EC Number: 272-808-3 PubChem CID: 24451
AVAILABLE TO ORDER
GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results.
Synonyms
DISODIUM PYROPHOSPHATE | Disodium dihydrogen pyrophosphate | disodium;[hydroxy(oxido)phosphoryl] hydrogen phosphate | H5WVD9LZUD | Dinatriumpyrophosphat | Sodium acid pyrophosphate | Disodium diphosphate | Disodium acid pyrophosphate | MFCD00014246
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100g
S165313-100g
4

$9.90

$13.90
Save $4.00 (28.78%)
250g
S165313-250g
2

$15.90

$25.90
Save $10.00 (38.61%)
500g
S165313-500g
3

$26.90

$38.90
Save $12.00 (30.85%)
Enter a quantity for the sizes you want to add.
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Why this grade

AR AR for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 12 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Sodium hexametaphosphate is an inorganic polyphosphate salt commonly used as a corrosion inhibitor, emulsifying agent and as a tooth whitening agent in dentifrice formulations.

Specifications

Synonyms
DISODIUM PYROPHOSPHATE | Disodium dihydrogen pyrophosphate | disodium;[hydroxy(oxido)phosphoryl] hydrogen phosphate | H5WVD9LZUD | Dinatriumpyrophosphat | Sodium acid pyrophosphate | Disodium diphosphate | Disodium acid pyrophosphate | MFCD00014246
Specifications & Purity
AR
Biochemical and Physiological Mechanisms
Intended for the cytologic demonstration of Naphthol AS-D Chloroacetate Esterase in blood, bone marrow films or tissue touch preparations.
Storage
Room temperature
Shipped In
Normal
Grade
AR
Names and Identifiers
Isomeric SMILES OP(=O)([O-])OP(=O)(O)[O-].[Na+].[Na+]
WGK Germany 1
RTECS TR4950250
PubChem CID 24451

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

36 results found

Lot NumberCertificate TypeDateItem
F2610435Certificate of AnalysisMay 21, 2026 S165313
F2610434Certificate of AnalysisMay 21, 2026 S165313
F2610433Certificate of AnalysisMay 21, 2026 S165313
F2610414Certificate of AnalysisMay 21, 2026 S165313
G2227322Certificate of AnalysisMay 19, 2026 S165313
D2608562Certificate of AnalysisMar 20, 2026 S165313
D2608592Certificate of AnalysisMar 20, 2026 S165313
D2608595Certificate of AnalysisMar 20, 2026 S165313
D2608605Certificate of AnalysisMar 20, 2026 S165313
D2608615Certificate of AnalysisMar 20, 2026 S165313
B2217192Certificate of AnalysisDec 10, 2025 S165313
G2511505Certificate of AnalysisJun 18, 2025 S165313
G2511593Certificate of AnalysisJun 18, 2025 S165313
G2511594Certificate of AnalysisJun 18, 2025 S165313
H2504089Certificate of AnalysisJun 18, 2025 S165313
I2504033Certificate of AnalysisJun 18, 2025 S165313
L2420690Certificate of AnalysisOct 29, 2024 S165313
L2420691Certificate of AnalysisOct 29, 2024 S165313
L2420692Certificate of AnalysisOct 29, 2024 S165313
L2420693Certificate of AnalysisOct 29, 2024 S165313
B2514070Certificate of AnalysisOct 29, 2024 S165313
H2412495Certificate of AnalysisAug 16, 2024 S165313
F2314481Certificate of AnalysisJun 21, 2023 S165313
K2217211Certificate of AnalysisNov 21, 2022 S165313
G2227324Certificate of AnalysisJun 06, 2022 S165313
G2227325Certificate of AnalysisJun 06, 2022 S165313
G2416037Certificate of AnalysisJun 06, 2022 S165313
G2227323Certificate of AnalysisJun 06, 2022 S165313
G2227321Certificate of AnalysisJun 06, 2022 S165313
E2322630Certificate of AnalysisJun 06, 2022 S165313
I2410253Certificate of AnalysisJun 06, 2022 S165313
A2417088Certificate of AnalysisJun 06, 2022 S165313
H2331074Certificate of AnalysisDec 09, 2021 S165313
B2217193Certificate of AnalysisDec 09, 2021 S165313
B2217191Certificate of AnalysisDec 09, 2021 S165313
B2217190Certificate of AnalysisDec 09, 2021 S165313

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Chemical and Physical Properties
SensitivityHygroscopic
Molecular Weight221.940 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count7
Rotatable Bond Count2
Exact Mass221.907 Da
Monoisotopic Mass221.907 Da
Topological Polar Surface Area130.000 Ų
Heavy Atom Count11
Formal Charge0
Complexity143.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count3
Citations of This Product
References
1. Shuang-Mei He, Fang Wang, Lin Zhang, Jia-Yan Zhang, Fu-Rong Zeng, Bo-Wen Liu, Yan-Bing Luo, Yu-Zhong Wang, Hai-Bo Zhao.  (2023)  Quick and efficient flame-retardant, antibacterial and antifungal treatment for high-performance cellulose paper.  PROGRESS IN ORGANIC COATINGS,      [PMID:] [10.1016/j.porgcoat.2023.107947]
2. Mingrong Cheng, Xiaoyan Gao, Yong Wang, Houxiang Chen, Bing He, Yingchun Li, Jiang Han, Zhiping Zhang.  (2022)  Synthesis of liver-targeting dual-ligand modified GCGA/5-FU nanoparticles and their characteristics in vitro and in vivo.  International Journal of Nanomedicine,      [PMID:24232303] [10.2147/IJN.S52877]
3. Fan Wang, Xuehong Wang, En Xie, Fan Wang, Qi Gan, Sun Ping, Jie Wei, Fengqian Li, Zimin Wang.  (2022)  Simultaneous incorporation of gallium oxide and tantalum microparticles into micro-arc oxidation coating of titanium possessing antibacterial effect and stimulating cellular response.  Biomaterials Advances,      [PMID:35929211] [10.1016/j.bioadv.2022.212736]
4. Fang He, Meng Wang, Lan Luo, Zhenxing Wang, Shaoqin Peng, Yuexiang Li.  (2021)  Directional modulation of triazine and heptazine based carbon nitride for efficient photocatalytic H2 evolution.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2021.150103]
5. Li Ke, Chen Tingting, Mao Huibing, Chen Ye, Wang Jiqing.  (2021)  Preparation and Upconversion Emission Investigation of the YVO4:Yb3+:Er3+ Nanomaterials and Their Coupling with the Au Nanoparticles.  JOURNAL OF ELECTRONIC MATERIALS,  50  (3): (1189-1195).  [PMID:] [10.1007/s11664-020-08636-3]
6. Tingting Chen, Ke Li, Huibing Mao, Ye Chen, Jiqing Wang.  (2020)  Preparation and Upconversion Emission Investigation of the YVO4: Yb3+/Tb3+/Eu3+ Nanomaterials and Their Coupling with the Au Nanoparticles.  CRYSTAL RESEARCH AND TECHNOLOGY,  55  (8): (2000001).  [PMID:] [10.1002/crat.202000001]
7. Yongdi Xie, Fan Li, Jianjia Wang, Ruiying Wang, Haijun Wang, Xiang Liu, Yongmei Xia.  (2017)  Catalytic transfer hydrogenation of ethyl levulinate to γ-valerolactone over a novel porous Zirconium trimetaphosphate.  Molecular Catalysis,      [PMID:] [10.1016/j.mcat.2017.09.011]
8. Yacong Deng, Yanlin Xu, Zhuoyi Liu, Wenhong Wang, Bin Liu, Hailing Guo, Yanpeng Li, Bin Dong, Yichuan Li, Yuan Pan, Yongming Chai, Chenguang Liu.  (2024)  Hydrodeoxygenation of guaiacol over modified coconut carbon supported Ni nanoparticles catalysts under alkaline condition.  BIOMASS & BIOENERGY,      [PMID:] [10.1016/j.biombioe.2024.107404]
9. Jing Ru, Xiaochen Xu, Yuxuan Cheng, Nan Luo, Shuo Tan, Xi Chen, Feng Chen, Bing-Qiang Lu.  (2025)  Influence of Polyphosphate on the Mineralization Balance of Tooth Enamel.  ACS Omega,      [PMID:40124016] [10.1021/acsomega.4c09093]
10. Chenlu Xu, Yujuan Gao, Xiaoyu Zhang, Fan Jia, Zian Pan, Mingjun Li, Weifeng Wang, Xianlei Li, Yan Wu.  (2025)  Polydopamine-Integrated Nanomedicine through Dual Metabolic Intervention with Enhanced Photothermal Therapy against Triple-Negative Breast Cancer.  Advanced Therapeutics,      [PMID:] [10.1002/adtp.202400570]
11. Liufu Zhang, Jianwei Di, Haoyang Wang, Zhiwei Zhou, Yuxi Wang, Jun Long, Yanqiu Zhang, Jing Guo, Xu Jiang, Lu Shao.  (2025)  Tear-film-inspired interfacial polymerization engineering nanofiltration membrane architecture for highly efficient antibiotic desalination.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2025.164990]
12. Yuanyuan Zhang, Menglong Chen, Yating Wang, Zhenwei Xiong, Keqiang Xu, Xinyu Liu, Hui Lin, Quanjun Liu, Hongge Chen.  (2026)  High-efficiency enzymatic conversion of cellulose to starch by strengthening glucose-utilization bypass.  BIORESOURCE TECHNOLOGY,      [PMID:41740939] [10.1016/j.biortech.2026.134274]
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