檸檬酸二氫鈉(檸檬酸一鈉)Sodium Dihydrogen Citrate/ Monosodium Citrate Anhydrous
呈白色顆粒晶體或結晶性粉末,味堿,微酸,無臭。高于310℃時分解。在潮濕空氣中輕微潮解。易溶于水,幾乎不溶于乙醇。 可加熱到200度發(fā)熱發(fā)氣量為每克約100ml.
食品工業(yè)中作酸度調節(jié)劑,用作緩沖劑,螯合劑;抗氧化增塑劑,乳化鹽;洗滌工業(yè)中作清洗劑;橡塑 行業(yè)中作塑料填充劑和發(fā)泡劑,飲料中作二氧化碳保持劑。
無水一鈉是一種與OBSH性能差不多的發(fā)泡劑配方。無水一鈉在200℃硅油中反應放氣量為110ml/g,普通AC發(fā)泡劑的放氣量為220-250ml/g,無水一鈉的放氣量遠遠低于普通AC產品發(fā)氣量,這使得它在汽車頂棚的皮革或者擠出成型橡塑中可以用到。
M.F:C6H7NaO7
W.F: 214.11
CAS:18996-35-5
Grade: Food
Product Description:
Monosodium citrate anhydrous is also named sodium dihydrogen citrate,monosodium citrate.It occurs as white crystalline powder with a slightly acidic taste,the PH value is 3.4-3.8 .It is freely soluble in water and practically insoluble in ethanol.Monosodium citrate anhydrous should be kept in airtight container in case the product is affected with damp.
Specifications:
Item
E331
QB
As Plastic foaming agent
Characters
white powder
white powder (its can be pass through 100 meshes )
Solubility
free soluble in water;practically insoluble in ethanol.
Identification
A. It gives the reaction of citrates B. It gives the reaction of sodium
Assay
99.0%-101.0%
≤99%
PH
3.4-3.8
Oxalate ppm
≤ 100
/
Chloride ppm
≤ 50
Sulfate ppm
≤ 150
Heavy metals ppm
≤ 5
Aresenic ppm
≤ 1
loss on drying
≤0.4% ( 105℃, 4 h)
≤0.4%
( 105℃, 4 h)
≤0.1%( 105℃, 4 h)
Gas release (ml/g)
≥100
Storage
preserve in well-closed containers.
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湖南寧鄉(xiāng)新陽化工有限公司
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