行业组件数据 · 2026

硫酸铬络合物

Chromium sulfate complex is a key chemical component in chrome tanning solutions used for leather processing.

技术定义与适配语境
典型 硫酸铬络合物 会按材料、尺寸公差、适配关系和失效风险在 皮革及相关产品制造 中评估。

Chromium sulfate complex is a coordination compound formed by chromium(III) ions with sulfate ligands, typically prepared by reducing sodium dichromate with sulfur dioxide or glucose in sulfuric acid. It serves as the primary tanning agent in chrome tanning processes, where it cross-links collagen fibers in animal hides to produce durable, heat-resistant leather with a characteristic blue-green color.

组件规格

定义
Chromium sulfate complex is a coordination compound formed by chromium(III) ions with sulfate ligands, typically prepared by reducing sodium dichromate with sulfur dioxide or glucose in sulfuric acid. It serves as the primary tanning agent in chrome tanning processes, where it cross-links collagen fibers in animal hides to produce durable, heat-resistant leather with a characteristic blue-green color.
工作原理
The chromium(III) ions in the complex form coordinate covalent bonds with carboxyl groups on collagen polypeptide chains, creating stable cross-links between protein fibers. This increases the hydrothermal stability, reduces biodegradability, and enhances mechanical properties of the leather.
材料
Chromium(III) sulfate hydrate [Cr2(SO4)3·xH2O] with basicity typically 33-42%containing 24-26% Cr2O3 equivalent. May contain masking agents like formate or acetate to control reactivity.
Basicity
33-42%
Appearance
Dark green powder or granules
Solubility
Fully soluble in water
Cr2O3 content
24-26%
pH (10% solution)
2.5-3.5
标准
ISO 5398DIN 53308

行业分类与别名

硫酸铬络合物 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Improper pH control during tanning->Incomplete penetration and uneven tanning->Maintain pH 2.8-3.2 during chrome tanning process
Oxidation of chromium(III) to chromium(VI)->Toxic hexavalent chromium formation->Use reducing agents and avoid alkaline conditions

工业生态与工程逻辑

0
Hexavalent chromium formation under certain conditions
1
Environmental contamination from chromium discharge
2
Worker exposure to chromium dust

合规与检测

tolerance
Chromium(VI) content < 3 mg/kg in final leather per REACH regulations
test method
ISO 17075 for chromium(VI) determination in leather

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the role of chromium sulfate complex in leather production?

It serves as the primary tanning agent that cross-links collagen fibers, making leather more durable, heat-resistant, and less susceptible to biodegradation.

How is chromium sulfate complex typically manufactured?

It's produced by reducing sodium dichromate with reducing agents like sulfur dioxide or glucose in sulfuric acid, followed by concentration and drying.

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CNFX Industrial Component Index · 皮革及相关产品制造

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初步技术归类
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URN:CNFX:ME:UNIT:CHROMIUM_SULFATE_COMPLEX