Potassium sulfate (CAS 7778-80-5) — formula K2SO4, molecular weight 174.26; category fine chemicals.
Potassium sulfate (CAS 7778-80-5) is a chemical raw material in the fine chemicals category. Its molecular formula K2SO4 comprises 2 K, 1 S, 4 O atoms. Its molecular weight is about 174.26. Reported physicochemical data: melting point around 1067 °C, boiling point around 1689 °C. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 7778-80-5 |
|---|---|
| Molecular Formula | K2SO4 |
| Molecular Weight | 174.26 |
| Melting Point | 1067 °C |
| Boiling Point | 1689 °C |
| Applications | gypsum cements, to make alum and glass, as a food additive, in fertilizers, as an accelerator in wallboard, as an expansion control agent for dental materials |
| Category | Fine Chemicals|Fertilizers |
Documented applications: gypsum cements, to make alum and glass, as a food additive, in fertilizers, as an accelerator in wallboard, as an expansion control agent for dental materials.
Potassium sulfate is a high-value fine compound with CAS registry number 7778-80-5 and molecular formula K2SO4 (molecular weight 174.26), belonging to the fine chemicals segment of chemical raw materials.
CAS number: 7778-80-5
Its molecular formula K2SO4 comprises 2 K, 1 S, 4 O atoms.
Also known as: Potassium sulfate · 硫酸钾
Category: fine chemicals / fertilizers
The CAS registry number of Potassium sulfate is 7778-80-5.
Molecular formula K2SO4, molecular weight 174.26.
It is also registered under: Potassium sulfate, 硫酸钾.
Recorded applications: gypsum cements, to make alum and glass, as a food additive, in fertilizers, as an accelerator in wallboard, as an expansion control agent for dental materials.
Category: Fine Chemicals / Fertilizers.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Potassium sulfate (CAS 7778-80-5), compiled from public chemistry databases.
| CAS Registry Number | 7778-80-5 |
|---|---|
| PubChem CID | 24507 |
| Molecular formula | K2SO4 |
| IUPAC name | dipotassium;sulfate |
| UNII (FDA) | 1K573LC5TV |
| Molecular Weight | 174.26 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 173.87914262 |
| Monoisotopic Mass | 173.87914262 |
| Topological Polar Surface Area | 88.6 |
| Heavy Atom Count | 7 |
| Boiling Point | 1689 °C |
|---|---|
| Boiling Point | 1689 °C @760 [mm Hg] |
| Melting Point | 1067 °C |
| Density | 2.66 |
| Density | 2.66 g/cm³ |
| Density | 2.66 @25 °C |
| Other Experimental Properties | TRANSITION POINT: 588 °C |
POTASSIUM SULFATE; 7778-80-5; Dipotassium sulfate; Potassium sulphate; Sulfuric acid dipotassium salt; Arcanum duplicatum; Sulfuric acid, dipotassium salt; Kalium sulphuricum; Tartarus vitriolatus; Kali sulphuricum; Potassium sulfate (K2(SO4)); K2SO4; Sulfuric acid potassium salt (1:2); 1K573LC5TV; Potassium (as sulfate); DTXSID6029701
| Regulatory & Food Contact | FDA Substance added to food: FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, MALTING OR FERMENTING AID FLAVOUR_ENHANCER; SALT_SUBSTITUTE: Food Additives NOT SPECIFIED TRS 733-JECFA 29/26 CIR / INCI: Viscosity controlling; Bulking |
|---|---|
| GHS notification summary | 89% (517 / 581) |
| GHS notification summary | 89% (517 / 581) |
|---|---|
| Reported hazard statements | H318 (10.2%) |
This chemical does not meet GHS hazard criteria for 89% (517 of 581) of all reports.
H318 (10.2%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
Potassium sulfate · CAS 7778-80-5 · K2SO4. UNII 1K573LC5TV. Boiling Point: 1689 °C; Boiling Point: 1689 °C @760 [mm Hg]; Melting Point: 1067 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 硫酸钾