Potassium sulfate - PrimorTrace™, Ultra pure, ≥99.999% metals basis , CAS No.7778-80-5

CAS: 7778-80-5 Cat. No.: P434014 Formula: K2SO4 Molecular Weight: 174.26 EC Number: 231-915-5
AVAILABLE TO ORDER
GRADE & PURITY PrimorTrace™ ? PrimorTrace™ — Aladdin's trace-metal-analysis line with ultra-low metal background. Use for ICP/AAS trace-metal work where contamination must be minimal. Ultra pure ? Ultra-pure grade with very low impurity content across the board. Use for trace analysis, electronics, or processes intolerant of contamination. ≥99.999% metals basis
Synonyms
Kali sulphuricum | INS-515(I) | POTASSIUM SULFATE (MART.) | Potassium sulfate (2:1) | Kalium sulphuricum | POTASSIUM SULFATE [ORANGE BOOK] | POTASSIUM SULFATE, ACS | Potassium sulfate, Biochemical grade | Kaliumsulfat | Sulfuric acid potassium salt | HSDB
Storage
Room temperature
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
100g
P434014-100g
Made to order · 8–12 wks

€1,335.36

€1,558.37
Save €223.01 (14.31%)
500g
P434014-500g
Made to order · 8–12 wks

€2,251.70

€2,627.43
Save €375.73 (14.30%)
Enter a quantity for the sizes you want to add.
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Why this grade

PrimorTrace™, Ultra pure, ≥99.999% metals basis PrimorTrace™,Ultra pure 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 288 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Kali sulphuricum | INS-515(I) | POTASSIUM SULFATE (MART.) | Potassium sulfate (2:1) | Kalium sulphuricum | POTASSIUM SULFATE [ORANGE BOOK] | POTASSIUM SULFATE, ACS | Potassium sulfate, Biochemical grade | Kaliumsulfat | Sulfuric acid potassium salt | HSDB
Specifications & Purity
PrimorTrace™, Ultra pure, ≥99.999% metals basis
Storage
Room temperature
Shipped In
Normal
Grade
PrimorTrace™, Ultra pure
Purity
≥99.999% metals basis
Names and Identifiers
Canonical Smiles
[O-]S(=O)(=O)[O-].[K+].[K+]
IUPAC Name
dipotassium;sulfate
InChIKey
OTYBMLCTZGSZBG-UHFFFAOYSA-L
INCHI
1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
Isomeric SMILES
[O-]S(=O)(=O)[O-].[K+].[K+]
Molecular Weight
174.26
Reaxy-Rn
11343146
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11343146&ln=

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.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassAlkali metal oxoanionic compounds
SubclassAlkali metal sulfates
Intermediate Tree Nodes Not available
Direct ParentAlkali metal sulfates
Alternative Parents Inorganic salts  Inorganic oxides  
Molecular FrameworkNot available
Substituents Alkali metal sulfate - Inorganic oxide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal sulfates. These are inorganic compounds in which the largest oxoanion is sulfate, and in which the heaviest atom not in an oxoanion is an alkali metal.
External Descriptors potassium salt
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Solubility111g/L
x_boil_point_char1689 °C/1013 hPa
x_melt_point_char1067°C
Molecular Weight174.260 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count0
Exact Mass173.879 Da
Monoisotopic Mass173.879 Da
Topological Polar Surface Area88.600 Ų
Heavy Atom Count7
Formal Charge0
Complexity62.200
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
FAQs and Articles
Citations of This Product
Solution Calculators
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