异抗坏血酸钠 中文同义词: D-异抗坏血酸;D-异抗坏血酸钠盐;D-2,3,4,5,6-五羟基-2-己烯酸-4-内酯钠 ;异维生素钠;赤藻糖酸钠;异抗坏血酸钠;异维生素 C 钠;D-2,3,5,6-四羟基-2-己烯酸-Y-内酯钠盐 英文名称: Sodium erythorbate CAS号: 6381-77-7 分子式: C6H7NaO6 分子量: 198.11 EINECS号: 228-973-9 化学性质 白色至黄白色结晶性粉末或颗粒。几乎无臭。略有咸味。干燥状态下于空气中相当稳定。但在溶液中,在有空气、微量金属、热和光存在下会变质。熔点200°C以上(分解)。易溶于水(17g/100m1)。几不溶于乙醇。2%水溶液的pH值为5.5~8.0。 用途 抗氧化剂;防腐剂。 用途 异抗坏血酸钠是我国允许使用和国外广泛使用的水溶性抗氧化剂。其抗氧化性能大大超过维生素C,且价格便宜。我国规定可用于各类罐头、果酱和冷冻鱼,最大使用量1.0g/kg;也可用于肉制品,最大使用量0.5g/kg(以抗坏血酸计);也可用于葡萄酒和果汁饮料类,最大使用量0.15g/kg;也可用于啤酒,最大使用量0.04g/kg。 用途:D-异抗坏血酸为食品行业中重要的抗氧保鲜剂,可保持食品的色泽,自然风味,延长保质期,且无任何毒副作用。在食品行业中,主要用于肉制品,饮料,水果,蔬菜,罐头,果酱,啤酒,汽水,果茶,果汁,葡萄酒等。 d-sodium erythorbate Product Name:d-sodium erythorbate Another Name: CAS:228-973-9 Molecular Weight:198.1059 Molecular Formula:C6H7NaO6 Formula: C5H704 · COOH Molecular Weight: 176.03 Physical and chemical properties: melting point 166-172 °C, the product is a white or slightly yellow powder, soluble in water (soluble range of about 30%) and alcohol. Strong reduction gradual discoloration (blackening), when exposed to light or heating. Stability in the dry state, but the air will quickly decompose in aqueous solution in the case. Quality standards: the quality of the product meets the fourth edition of the regulations of the U.S. Food Chemistry "(FCC). D-erythorbate quality appearance of white or slightly yellow crystalline particles or powder Smell no odor 99.0 to 100.5% Specific rotation [α] -16.5? ~ -18.0? Residue on ignition ≤ 0.3% Heavy metals (Pb) ≤ 0.0010% Lead ≤ 0.0005% Arsenic ≤ 0.0003% The particle size of 20 mesh sieve residue ≤ 2%
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