分子式：C7H5NaO2
分子量：144.11
性 状：白色颗粒或结晶性粉末亦或雪片，无臭或略带安息香气味。在空气中稳定，极易溶于水（53.0g/100ml,25℃）。溶于乙醇（1.4g/100ml），水溶液的pH值为8。防止发酵力及杀菌力较苯甲酸弱。pH值3.5时，0.05%溶液完全能阻止酵母生长，pH值6.5时，需要2.5%以上溶液的浓度。
用 途：防腐剂,抗微生物剂。
限 量：
1．GB2760-2014：胶姆糖胶基GMP(以苯甲酸计)；预调酒0.2g/kg。
2．FAO/WHO(mg/kg)：人造奶油、餐用油橄榄、果酱和果冻、酸黄瓜、带防腐剂的菠萝浓汁1000（单用或与酸、山梨酸及其盐以及亚硫酸盐类合用量，但亚硫酸盐类不超过500，仅用于制造）；芒果酱250；速冻角条、鱼块、鱼馅按GMP。
3. 日本（以苯甲酸计，g/kg,本品g）：鱼子酱2.5（本品2.95）；清凉饮料、糖浆及酱油0.6（本品0.7）；人造奶油1.0（如与山梨酸及其盐类合用量为1）；焙烤制品用水果酱和果汁（包括浓缩果汁）为1.0。
包 装：产品外包装为纸塑符合袋，内包装用聚乙烯食品袋，净重25公斤/袋。
质量指标：
检测项目 | BP-98 | GB 1902-2005 |
外观 | 白色粉末，有安息香味 | 白色粉末，有安息香味 |
苯甲酸钠含量，% ≥ | 99.0-100.5 | 99.0-100.5 |
干燥失重，% ≤ | 2.0 | 1.5 |
溶液的澄清度试验 | 通过试验 | 通过试验 |
易氧化物试验 | 通过试验 | 通过试验 |
酸碱度 | 符合规定 | 通过试验 |
1:10 水溶液色度，Hazen ≤ | —— | 20 |
硫酸盐(以SO4计)，% ≤ | —— | 0.1 |
重金属(以Pb计)，% ≤ | 0.001 | 0.001 |
氯化物(以Cl计)，% ≤ | 0.02 | 0.03 |
砷(以As计)，mg/kg ≤ | —— | 2 |
邻苯二甲酸 | —— | 通过试验 |
全部氯含量，% ≤ | 0.03 | —— |
英文版：苯甲酸钠
Sodium Benzoate
Molecular formula：C7H5NaO2
Molecular weight：144.11
Description：white granules, crystalline powder or flakes. Odorless or with slight odor of benzoin. Stable in the air. Extremely easily soluble in water (53.0g/100ml,25℃). Soluble in ethanol (1.4g/100ml).pH of aqueous solution is 8. Its fermentation resistanc eand sterilizability are weaker than those of benzoic acid. When pH is at 3.5, 0.05% solution can completely resist the growth of yeast. When pH is at 6.5, concentration above 2.5% is needed.
Uses：Preservative; biocide resisting agent.
Limited：
1．GB2760-2014：Chewing Gum gum base GMP (as benzoic acid); pre-cocktail 0.2g/kg.
2．FAO/WHO(mg/kg)：Margarine, use olive dishes, jams and jellies, pickled cucumber, pineapple gravy with a preservative 1000 (alone or with acid, sorbic acid and its salts, as well as sulfite category of consumption, but not more than 500 categories sulfite only used in the manufacture); mango sauce 250; frozen section corner, steak, fish, stuffing according to GMP.
3. Japan (as benzoic acid, g / kg, the product g): caviar, 2.5 (This product is 2.95); soft drinks, syrups and sauces 0.6 (This product 0.7); artificial butter 1.0 (for example, with the sorbic acid and its salts All usage is 1); baking products water jam and fruit juice (including concentrated juice) 1.0.
Packaging: Product packaging is woven bags, inner PE film for packaging food bag, net weight 25 kg / bag.
Quality Standard：
Paramete | BP-98 | GB 1902-2005 |
Form | White powder and with styrax benzoin smell | White powder and with styrax benzoin smell |
Assay，% ≥ | 99.0-100.5 | 99.0-100.5 |
Loss on drying，% ≤ | 2.0 | 1.5 |
Dissolve test | Passes test) | Passes test. |
Easy oxide | Passes test. | Passes test. |
Acidity & Alkalinity | Passes test. | Passes test. |
1:10 solution chroma，Hazen ≤ | —— | 20 |
Sulphate (as SO4)，% ≤ | —— | 0.1 |
Heavy metals (as Pb)，% ≤ | 0.001 | 0.001 |
Chloride (as Cl)，% ≤ | 0.02 | 0.03 |
Arsenic (as As)，mg/kg ≤ | —— | 2 |
O-Phthalic acid | —— | Passes test. |
Total CL content，% ≤ | 0.03 | —— |
