What is Tin (2+) Oxalate CAS 814-94-8?

It is an inorganic tin(II) salt, also called stannous oxalate, with the formula C2O4Sn and a molecular weight of about 206.73 g/mol. It is supplied as a white to off-white crystalline or free-flowing powder and is used mainly as an esterification and transesterification catalyst.

Why is stannous oxalate used in polyester and plasticizer production?

It gives high catalytic activity in esterification, transesterification, and polycondensation reactions while producing light-colored, color-stable esters. Its high tin content and low side-reaction tendency make it suitable for polyester polyols, plasticizers, nonionic surfactants, and PTT or specialty polymers.

How does Tin (2+) Oxalate compare with organotin catalysts?

It has a high metal content, low color contribution, and a lower toxicity profile than many organotin alternatives. It is noncorrosive and can be easily removed from the reaction mixture by chemical treatment or adsorption after esterification.

Is Stannous Oxalate soluble in water, and how is it normally dosed?

It is practically insoluble in water and alcohol, but soluble in dilute acids such as hydrochloric acid. In esterification processes the typical dosage is about 0.01-0.2% by weight, with high reactivity generally obtained above 160 degrees C.

What are the non-catalyst applications of Tin (2+) Oxalate?

It is used as a mordant in textile dyeing and printing, in stannous oral-care compositions, and as a reducing agent in specialized photographic developer formulations. It also appears in coal hydrogenation and selected metallurgical recovery applications.

Tin (2+) Oxalate CAS 814-94-8

Tin (2+) Oxalate, identified by CAS 814-94-8, is a crystalline inorganic metal salt that functions primarily as a specialized catalyst and reducing agent within industrial chemical synthesis. Recognized across material science sectors as Stannous oxalate, this compound leverages the bivalent state of tin to facilitate complexation and accelerate reaction kinetics in organic environments. In polymer manufacturing, Tin(II) oxalate serves as an essential catalyst for esterification and transesterification workflows, particularly in the production of specialized resins. The textile processing industry typically utilizes Tin ethanedioate as a mordant for fabric dyeing operations, while metallurgical and energy sectors integrate Oxalato tin into coal hydrogenation processes. For procurement requirements, we provide bulk supply capabilities to support continuous manufacturing lines. Our chemical distribution framework accommodates customized specifications based on specific reaction parameters, offering competitive factory pricing for industrial partners. Every shipment is accompanied by comprehensive regulatory and technical documentation, including MSDS, TDS, COA, ensuring full compliance with international safety and quality standards.

CAS: 814-94-8
Synonyms: Stannous oxalate, Tin(II) oxalate, Tin ethanedioate, Oxalato tin
Einecs: 212-414-0
Molecular Formula: C2O4Sn
Grade: Industrial Grade
Package: 25kg/drum or customized

Request a quote

Share:

Product Description

1 Physicochemical Properties

2 Applications

3 Storage & Safety

4 Quality Assurance

Physicochemical Properties

Property	Specification / Technical Data
Product Name	Tin (2+) Oxalate (Stannous Oxalate)
CAS Number	814-94-8
Molecular Formula	C2O4Sn
Molecular Weight	206.73 g/mol
Appearance	Fine white to off-white crystalline powder
Assay (as Sn²⁺)	≥ 57.0%
Melting Point	280 °C (Decomposes)
Density	3.56 g/cm³
Solubility	Insoluble in water and alcohol; soluble in dilute HCl
Loss on Drying	≤ 0.5%
Iron (Fe)	≤ 0.005%
Heavy Metals (as Pb)	≤ 0.02%
Chloride (Cl⁻)	≤ 0.01%
Sulfate (SO₄²⁻)	≤ 0.05%

Applications

Chemical Catalysis: Extensively utilized as an esterification and transesterification catalyst in the synthesis of specialized polymers and resins.
Textile Industry: Applied as a mordant in industrial fabric dyeing processes to improve colorfastness.
Energy & Metallurgy: Functions as an active catalyst in coal hydrogenation and specific metallurgical recovery processes.
Photographic Formulations: Serves as a reducing agent in specialized photographic developer solutions.

For other tin compounds used in chemical processing and surface-treatment work, see Stannous Chloride Dihydrate and Sodium Stannate Trihydrate.

Storage & Safety

Tin (2+) Oxalate must be stored in a cool, dry, and well-ventilated warehouse, strictly isolated from strong oxidizing agents and strong acids to prevent degradation. It is sensitive to moisture and prolonged air exposure, which can cause oxidation of the bivalent tin. Personnel handling the bulk powder must use appropriate Personal Protective Equipment (PPE), including NIOSH-approved dust masks, nitrile gloves, and safety goggles, to prevent inhalation of particulates and avoid direct skin or eye contact.

Quality Assurance

To ensure batch-to-batch consistency for industrial applications, our factory implements rigorous quality control protocols. The bivalent tin (Sn2+) active content is precisely quantified using iodometric titration methods, while trace heavy metal impurities are screened via Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). Production workflows adhere to ISO-standard industrial chemical management systems, ensuring material stability and high catalytic activity for downstream synthesis.

FAQ - Technical & Supply Chain

Q:
What is Tin (2+) Oxalate CAS 814-94-8?

A: It is an inorganic tin(II) salt, also called stannous oxalate, with the formula C2O4Sn and a molecular weight of about 206.73 g/mol. It is supplied as a white to off-white crystalline or free-flowing powder and is used mainly as an esterification and transesterification catalyst.
Q:
Why is stannous oxalate used in polyester and plasticizer production?

A: It gives high catalytic activity in esterification, transesterification, and polycondensation reactions while producing light-colored, color-stable esters. Its high tin content and low side-reaction tendency make it suitable for polyester polyols, plasticizers, nonionic surfactants, and PTT or specialty polymers.
Q:
How does Tin (2+) Oxalate compare with organotin catalysts?

A: It has a high metal content, low color contribution, and a lower toxicity profile than many organotin alternatives. It is noncorrosive and can be easily removed from the reaction mixture by chemical treatment or adsorption after esterification.
Q:
Is Stannous Oxalate soluble in water, and how is it normally dosed?

A: It is practically insoluble in water and alcohol, but soluble in dilute acids such as hydrochloric acid. In esterification processes the typical dosage is about 0.01-0.2% by weight, with high reactivity generally obtained above 160 degrees C.
Q:
What are the non-catalyst applications of Tin (2+) Oxalate?

A: It is used as a mordant in textile dyeing and printing, in stannous oral-care compositions, and as a reducing agent in specialized photographic developer formulations. It also appears in coal hydrogenation and selected metallurgical recovery applications.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

Current Language

Change Language