Sodium Citrate[2]
Overview
Sodium Citrate is a sodium salt of citric acid, commonly used as a buffering agent, emulsifier, and sequestrant. It is widely recognized for its safety and versatility across multiple industries, including food, pharmaceuticals, and industrial applications. The compound is synthesized through the neutralization of citric acid with sodium hydroxide or sodium carbonate. In the food industry, Sodium Citrate is valued for its ability to regulate acidity and enhance flavors. It is a key ingredient in processed cheeses, beverages, and gelatin desserts. Its non-toxic nature and stability make it a preferred choice for food manufacturers.
Physical and Chemical Properties
Sodium Citrate appears as a white, crystalline powder with a slightly salty taste. It is highly soluble in water, forming a clear, colorless solution. The compound has a molecular weight of 258.07 g/mol and a density of 1.7 g/cm³. It decomposes at around 300 °C without boiling. Chemically, Sodium Citrate acts as a chelating agent, binding metal ions to prevent oxidation and spoilage. This property is particularly useful in food preservation and industrial cleaning applications. Its buffering capacity helps maintain stable pH levels in various formulations.
Main Applications
In the food industry, Sodium Citrate is used as an acidity regulator, emulsifier, and preservative. It is a critical component in processed cheese, where it prevents separation and improves texture. Beverages, jams, and canned foods also utilize Sodium Citrate for pH control and flavor enhancement. Pharmaceutical applications include its use as an anticoagulant in blood collection tubes and as an alkalizing agent in medications. Industrially, it serves as a biodegradable cleaning agent and a water softener in detergents. Its versatility and safety profile make it indispensable across these sectors.
Safety and Storage
Sodium Citrate is generally recognized as safe (GRAS) by regulatory authorities, including the FDA. However, exposure to dust should be minimized to avoid respiratory irritation. Proper storage involves keeping the compound in a cool, dry place, sealed in moisture-proof containers to prevent caking. While non-toxic, ingestion of large quantities may cause gastrointestinal discomfort. Always follow safety data sheets (SDS) and wear appropriate personal protective equipment (PPE) when handling the powder form. Proper ventilation is recommended in storage areas to maintain air quality.
B2B Procurement Guide
When procuring Sodium Citrate, prioritize suppliers with certifications such as ISO, GMP, or FSSC 22000, depending on the intended use. Food-grade and pharmaceutical-grade variants must meet stringent purity standards, typically ≥99%. Industrial-grade Sodium Citrate may have slightly lower purity but is cost-effective for non-critical applications. Bulk purchases often offer cost savings, with prices ranging approximately $2-$5 per kg. Request samples to test compatibility with your processes. Ensure suppliers provide detailed specifications, including heavy metal content and microbiological limits, to avoid quality issues.
Related Manufacturers
- 主营：染料回收、回收颜料
- 主营：回收颜料、回收白凡士林、回收日化原料、回收聚氨酯原料、回收聚醚多元醇
- 主营：回收钛白粉、回收硫酸铜、回收氯化亚锡、回收氢氧化钠、回收柠檬酸、回收锌粉、回收油漆、回收石蜡、回收己内酰胺、回收水银、回收丙烯酸树脂、回收氧化锌、回收溶剂、回收硫酸亚锡、回收碳酸锂、回收碳酸钾、回收氢氧化锂、回收氢氧化钾、回收硼酸、回收硼砂、回收煤焦油、回收烧火油、回收环氧树脂、回收过期油漆、回收白砂糖
- 主营：塑料助剂、精炼石蜡、化工催化剂、回收柠檬酸钠、回收过期染料、回收气相白炭黑、回收油漆、回收树脂、回收钛白粉、回收日化原料、回收橡胶原料
- 主营：油漆上门、回收涂料、回收颜料、油漆回收、回收橡胶助剂
- 主营：金红石钛白粉、单水氢氧化锂、碘化钾、碘化钠、精碘、薄荷脑、氯化亚锡
- 主营：油漆回收、聚醚回收、树脂回收、环氧油漆、油漆涂料、回收硅胶、橡胶回收、库存油漆、水性油漆、废旧树脂、化工油漆、固体废蜡、库存染料、过期油漆、回收颜料、聚乙烯蜡、石蜡回收、助剂回收、染料回收、库存化工、钛白粉回收、白蜂蜡回收、丙烯酸树脂、回收聚氨酯、日化原料
- 主营：化工染料、回收底漆、回收橡胶、回收过期柠檬酸钠、回收纯碱、回收甘油、化工废料、松香琥珀、回收油漆、明胶回收、回收清漆、己内酰胺、回收染料、防水涂料、回收二乙胺、食品添加剂、回收硫酸镍、回收抗氧剂、回收聚乙烯、回收油性漆、回收二苯基、合鞣剂回收、回收碘化钾、回收甘露醇、回收废油漆、回收化工原料
- 主营：回收钛白粉、回收糊树脂、回收抗氧剂、收购柠檬酸钠、回收润滑油、回收pa66树脂、回收甲苯胺红、回收松香树脂、回收司盘、回收环氧树脂、回收颜料染料、回收油漆、回收聚醚、回收软泡聚醚、回收丁基橡胶、回收塑料、回收过期油漆、回收氨基树脂、回收塑料油墨、回收热熔胶棒、回收萜烯树脂、回收醇酸油漆、回收甲基硅胶、回收橡胶促进剂
- 主营：回收涂料、回收染料、回收颜料、回收柠檬酸、回收树脂、回收氧化锆珠、回收香精、回收甘油、回收橡胶助剂、回收硅橡胶、回收聚乙烯醇、回收二甲基硅油、回收纤维素、回收日化原料、回收固化剂、回收食品添加剂、回收氢氧化锂、回收天然橡胶、回收促进剂、回收硬脂酸、回收油漆、回收聚氨酯发泡剂、回收各种溶剂、回收eva
- 主营：回收油漆、回收涂料、回收颜料、柠檬酸钾、回收化工原料、回收防腐油漆、回收汽车漆、回收木器漆、回收地坪漆、回收树脂、回收稀释剂、回收固化剂、回收防污漆、回收船舶漆、回收环氧油漆、回收聚氨酯油漆、回收日化原料、回收香精、回收硬脂酸、回收石蜡、回收热熔胶、回收钛白粉、回收橡胶助剂、回收塑料助剂、回收环氧富锌底漆、回收钢结构油漆
- 主营：哪里回收柠檬酸钠、回收染料颜料色浆、回收各种化工助剂、回收日化原料
- 主营：回收松香、回收油漆、回收石蜡、回收柠檬酸、回收钛白粉、回收抗氧剂、回收薄荷脑、回收固化剂、回收溶剂油、回收氧化锌、回收珠光颜料、回收聚乙烯醇、回收染料颜料、回收各种溶剂、回收过期油漆、上门回收碳黑、回收各种树脂、回收水性色浆、回收橡胶助剂、回收玉米淀粉、回收化工原料、回收塑料助剂、回收染料中间体、回收聚醚多元醇
- 主营：回收减水剂、回收红糖、回收硅油、柠檬酸、回收羧甲基纤维素钠、回收热熔胶、纤维素、异丙醇、回收天然橡胶、乙二醇、抗氧剂、硝酸钾、乳化剂、羟乙酯、废机油、环己烷、正己烷、硫酸铜、硫酸银、葡萄糖、二甲酯、回收三乙醇胺、羟丙酯、丙烯酸、回收化学试剂
- 主营：回收化工原料、回收维生素、回收减水剂、收购碘化钾、回收日化原料、化工厂废料、回收赤砂糖、回收含糖废水、回收化学试剂、回收二甲基硅油、回收引气剂、回收化工废溶剂