行业组件数据 · 2026

氢氧化钠晶体

Sodium hydroxide crystal is a solid form of caustic soda used in industrial chemical processes.

技术定义与适配语境
典型 氢氧化钠晶体 会按材料、尺寸公差、适配关系和失效风险在 化学制造 中评估。

Sodium hydroxide crystal, also known as caustic soda crystal, is a highly alkaline inorganic compound with the chemical formula NaOH. It exists as white, deliquescent crystalline solids that readily absorb moisture from air. In industrial applications, these crystals are produced through evaporation of sodium hydroxide solutions and are valued for their high purity (typically 98-99% NaOH) and controlled physical properties. They serve as a concentrated form of alkali for various chemical manufacturing processes where precise dosing and minimal water content are required.

组件规格

定义
Sodium hydroxide crystal, also known as caustic soda crystal, is a highly alkaline inorganic compound with the chemical formula NaOH. It exists as white, deliquescent crystalline solids that readily absorb moisture from air. In industrial applications, these crystals are produced through evaporation of sodium hydroxide solutions and are valued for their high purity (typically 98-99% NaOH) and controlled physical properties. They serve as a concentrated form of alkali for various chemical manufacturing processes where precise dosing and minimal water content are required.
工作原理
Sodium hydroxide crystals function as a strong base in chemical reactions through dissociation into sodium (Na+) and hydroxide (OH-) ions when dissolved in water. The hydroxide ions act as proton acceptors, enabling neutralization of acids, saponification of fats and oils, hydrolysis of esters and amides, and pH adjustment in industrial processes. The crystalline form provides controlled solubility and reaction kinetics compared to liquid alternatives.
材料
High-purity sodium hydroxide (NaOH) with typical composition: 98-99% NaOH0.5-1.5% sodium carbonate (Na2CO3)<0.1% sodium chloride (NaCl)<0.005% iron (Fe)and trace heavy metals. Physical form: orthorhombic crystalline structurewhite opaque appearancedeliquescent properties.
Purity
98-99% NaOH
Bulk Density
1.1-1.3 g/cm³
Melting Point
318°C (604°F)
Moisture Content
<0.5%
Solubility in Water
111 g/100 mL at 20°C
Storage Temperature
Below 40°C in dry conditions
pH of Saturated Solution
14
Particle Size Distribution
1-10 mm crystals
标准
ISO 15547DIN 19602ASTM E291

行业分类与别名

氢氧化钠晶体 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

Moisture ingress during storage->Caking and reduced flowability, partial dissolution creating concentrated caustic solutions->Hermetic sealing with desiccants, controlled humidity storage environments, regular container integrity checks
Incompatible material contact->Violent exothermic reactions with acids, corrosion of aluminum and zinc containers->Segregated storage from acids and reactive metals, use of compatible polyethylene or properly lined steel containers
Improper handling without PPE->Severe chemical burns to skin and eyes, respiratory irritation from dust->Mandatory use of chemical-resistant gloves, face shields, protective clothing, and respiratory protection during handling

工业生态与工程逻辑

0
Severe skin and eye corrosion
1
Exothermic reaction with water causing heat and splattering
2
Reactivity with acids producing hazardous gases
3
Environmental toxicity to aquatic life
4
Deliquescence leading to container corrosion

合规与检测

tolerance
±0.5% NaOH content from specified purity, ±10% on particle size distribution
test method
Titration with hydrochloric acid for NaOH content (ASTM E291), sieve analysis for particle size, Karl Fischer titration for moisture content

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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 main advantage of using sodium hydroxide crystals over liquid caustic soda?

Crystals offer higher purity (98-99% NaOH vs 50% in liquid), reduced transportation costs due to no water content, precise dosing capability, and better storage stability without crystallization issues in cold temperatures.

How should sodium hydroxide crystals be stored safely?

Store in airtight containers in cool, dry areas below 40°C, away from acids and moisture. Use corrosion-resistant packaging (polyethylene or steel with proper lining) and implement spill containment measures due to the material's deliquescent and corrosive nature.

What industries commonly use sodium hydroxide crystals?

Primary users include chemical manufacturing (especially for organic synthesis and inorganic compounds), pulp and paper production, textile processing, water treatment facilities, and soap/detergent manufacturing where controlled alkali addition is critical.

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CNFX Industrial Component Index · 化学制造

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URN:CNFX:ME:UNIT:SODIUM_HYDROXIDE_CRYSTAL