Industry Grade 99% Lithium Sulfate CAS 10377-48-7

Lithium Sulfate (Li₂SO₄) — Product Detail Page

1. Product Overview

Lithium sulfate (Li₂SO₄) is a white crystalline lithium salt with high thermal stability (melting point 845 °C) and good water solubility. It is a versatile lithium carrier across three industries: as an electrolyte and surface-treatment material in lithium batteries, as a setting-regulating admixture in cement and concrete

Unlike lithium carbonate and lithium chloride, lithium sulfate is free of gas evolution and chloride corrosion issues, which makes it a clean, well-behaved lithium salt in many processes. Its stable sulfate anion and controlled ionic strength have also made it a component of high-strength glass, ion-conducting materials and specialty formulations.

core value propositions:

Battery & Energy Materials:

● an electrolyte salt and surface-treatment material for lithium-ion batteries and ion-conducting systems;

Cement & Construction Additives:

● a setting- and hardening-regulating admixture for cement, concrete and specialty building materials;

Glass, Optics & Specialty Materials:

● a component of high-strength glass, ion-conducting glasses and specialty formulations.

2. Product Information (Quick Facts)

3. Chemistry & Forms

Lithium sulfate crystallizes as white monoclinic crystals built from Li⁺ cations and sulfate anions. It is produced by reacting lithium carbonate or hydroxide with sulfuric acid, followed by purification and crystallization. Two commercial forms are offered: the anhydrous salt (CAS 10377-48-7), preferred where moisture must be excluded, and the monohydrate (Li₂SO₄·H₂O, CAS 10102-25-7), which is stable and easy to handle.

Grade selection follows the application. Industrial grade (≥ 99.0%) serves cement admixtures and general use; battery/electronics grade adds tight limits on Na, K, Ca, Mg and Fe for electrode treatment and electrolyte work; trace-metals grade (99.99%) supports research and optical applications. Custom assay, particle size and packaging are available on request.

4. Key Features & Benefits

● High thermal stability:melting point of 845 °C, stable well above the range of most organic and volatile lithium compounds

● Clean, gas-free chemistry: no CO2 evolution like lithium carbonate, no chloride corrosion like lithium chloride – well behaved salt in processing.

● Good water solubility: readily dissolves (≈ 26 g/100 ml at 25 °C) for easy dosing into aqueous systems.

● Battery performance: used in the pretreatment of graphite electrodes and as an electrolyte additive to improve the performance of lithium-ion batteries

● Proven construction use: lithium admixtures accelerate early strength in cement and regulate setting in concrete systems.

● Full traceability: COA with every batch documenting assay and key impurities.

5. Main Applications

5.1 Battery & Energy Materials (Core Application)

Lithium sulfate is a versatile material in electrochemical energy storage:

● Pretreatment of graphite electrodes: Li₂SO₄ treatment of graphite anodes to improve rate and cycling performance of lithium-ion battery;

● Electrolyte and lithium salt chemistry: source of lithium for electrolyte salts, additives and model systems;

● Ion-conducting materials: component of lithium-ion conducting glasses and solid electrolytes;

● Solar and energy research: lithium salt in emerging photovoltaic and storage research formulations.

5.2 Cement & Construction Additives

● Cement setting regulation: lithium admixtures accelerate early-age strength and regulate hydration of Portland and specialty cements;

● Concrete admixtures: component of accelerating and hardening systems for rapid construction;

● Specialty building materials: lithium sulfate in repair mortars, grouts and alkali-reactive mitigation systems.

5.3 Glass, Optics & Specialty Materials

● High-strength glass: lithium component raising strength and durability of specialty glass;

● Ion-conducting glass: lithium sulfate in glasses for solid-state electrochemical devices;

● Ceramics and catalysts: fluxing component and catalyst support additive;

● Analytical standards: reference salt for lithium and sulfate determinations.

6. Packaging, Storage & Transport

Packaging (can be customised):

● 25 kg woven bag with PE liner; 25 kg fibre drum; 500 kg – 1,000 kg FIBC;

Storage: (more)

● Store in a cool, dry, well-ventilated area away from direct sunlight and heat;

● Keep containers closed to prevent moisture pick-up and caking;

● Keep away from strong acids and incompatible materials;

● Recommended storage temperature 5 °C - 35 °C.

Why Choose Jinan Future Chemical Co., Ltd.?

● Factory direct supply: in-house manufacturing capability, transparent pricing, no middleman markup;

● Stable quality: strict internal control, every batch tested, COA with every shipment;

● Flexible specifications: anhydrous or monohydrate, samples are welcome;

● Export experience: familiar with chemical commodity sea/air shipping documentation, provide complete paperwork support;

● Quick reply: quotations & technical support (COA, application advice) within 24 hours; small trial orders are accepted.

FAQ

Q1: What is lithium sulfate used for?

Lithium sulfate is used in lithium-ion batteries (graphite-electrode pretreatment and electrolyte chemistry), as a setting- and hardening-regulating admixture in cement and concrete,  and as a component of high-strength and ion-conducting glass.

Q2: What is the difference between anhydrous lithium sulfate and the monohydrate?

The anhydrous salt (Li₂SO₄, CAS 10377-48-7) is used where moisture must be excluded, such as battery and optical applications. The monohydrate (Li₂SO₄·H₂O, CAS 10102-25-7) is stable, free-flowing and easier to handle, suited to aqueous dosing in cement admixtures and general use. Both convert to the same chemistry in solution.

Q3: How is lithium sulfate used in batteries?

One notable application is the pretreatment of graphite anodes with a lithium sulphate solution, which modifies the surface of the electrode and enhances the rate capability and cycling stability. It is also used as a lithium source in electrolyte salts and as part of the ion conducting materials for solid state research.