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产品名称 Product Name |
苯甲酸钠 / Sodium Benzoate(安息香酸钠、苯甲酸钠盐 / Sodium benzoate, Benzoic acid sodium salt, E211) |
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别名 Synonyms |
安息香酸钠、苯甲酸钠盐 / Sodium benzoate, Benzoic acid sodium salt, E211 |
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化学式 Formula |
C₇H₅NaO₂ |
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分子量 Molecular Weight |
144.10 g/mol |
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CAS 登记号 CAS No. |
532-32-1 |
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EC / EINECS 号 |
208-534-8 |
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食品添加剂号 E-Number |
E 211 |
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海关编码 HS Code |
2916.31 |
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PubChem CID |
517055 |
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InChIKey |
WXMKPNITSTVMEF-UHFFFAOYSA-M |
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主要用途 Primary Use |
食品防腐剂(E211)、医药防腐、化妆品、染料、防冻液缓蚀剂 / Food preservative (E211), pharma, cosmetics, corrosion inhibitor |
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主要成分 Main Component |
苯甲酸钠 C₇H₅NaO₂ ≥ 99.0%(工业/食品级)/ Sodium benzoate C₇H₅NaO₂ ≥ 99.0% (industrial/food grade) |
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杂质 Impurities |
氯化物、硫酸盐、重金属、砷、铅、干燥失量 / Chlorides, Sulfates, Heavy metals, Arsenic, Lead, Loss on drying |
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外观 Appearance |
白色结晶性粉末或颗粒,无臭或微有气味 / White crystalline powder or granules, odorless or faint odor |
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分子量 MW |
144.10 g/mol |
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熔点 MP |
约 410 °C(分解)/ ~410 °C (decomp.) |
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沸点/分解 BP / Decomp. |
受热分解,无稳定液态沸点 / Decomposes on heating |
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密度 Density |
1.497 g/cm³ |
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水中溶解度 Solubility (H₂O) |
易溶:约 63 g/100 mL @ 20 °C / Readily soluble ~63 g/100 mL @20 °C |
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其他溶剂溶解度 in other |
微溶于乙醇;不溶于乙醚 / Slightly soluble in ethanol; insoluble in ether |
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pH |
7.0 – 8.5(1% 水溶液,微碱性)/ 7.0–8.5 (1% aq., slightly alkaline) |
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pKa |
≈ 4.2(对应苯甲酸)/ ~4.2 (corresponding to benzoic acid) |
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晶体结构 Crystal Structure |
单斜晶系 / Monoclinic |
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折射率 Refractive Index |
≈ 1.55(估算)/ ~1.55 (estimated) |
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吸湿/潮解 Hygroscopicity |
有吸湿性,易结块 / Hygroscopic, may cake |
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项目 Item |
典型值 Typical |
测试方法 Method |
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含量(以干基计)Assay |
≥ 99.0% |
滴定 / Titration |
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干燥失量 Loss on drying |
≤ 1.5% |
重量法 / Gravimetric |
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水不溶物 Insoluble matter |
≤ 0.01% |
过滤法 / Filtration |
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氯化物(以 Cl 计)Chlorides |
≤ 0.02% |
滴定 / Titration |
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硫酸盐(以 SO₄ 计)Sulfates |
≤ 0.005% |
浊度法 / Turbidimetry |
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重金属(以 Pb 计)Heavy metals |
≤ 0.001% (≤10 mg/kg) |
AAS / ICP |
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砷(以 As 计)Arsenic |
≤ 0.0003% (≤3 mg/kg) |
AAS / ICP |
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铅(以 Pb 计)Lead |
≤ 0.0001% (≤1 mg/kg) |
AAS / ICP |
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pH(1% 溶液)pH |
7.0 – 8.5 |
pH 计 / pH meter |
注:上述为工业/食品级典型指标,可参照 GB 1902-2005(食品添加剂 苯甲酸钠)、FCC/BP/USP(E 211)及 opalbiotech / tnn-china 供应商公开规格。具体数值以重庆广益化工出厂检验单(COA)为准。 / Per GB 1902-2005 and FCC/BP/USP (E211) and supplier TDS. Values per batch COA.
Food & beverage: preservation under acidic conditions (E211) e.g. drinks, jams, condiments
Pharma: preservative for oral liquids, syrups, topical preparations
Cosmetics & personal care: preservative for wash products
Industrial: metal rust prevention, antifreeze corrosion inhibitor
Plastics: nucleating agent for polypropylene
Dyes & chemical intermediates
Food preservative (E211), pharma, cosmetics, corrosion inhibitor
Store sealed in dry, ventilated place; prevent caking
Segregate from acids (benzoic acid precipitates on contact)
Wear dust mask, goggles, gloves when handling
Manage as general chemical; sweep and collect spills
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GHS 分类 GHS Classification |
GHS07(感叹号);粉尘眼/皮肤刺激 / GHS07; dust eye/skin irritation |
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危害声明 H-statements |
H319 造成严重眼刺激(粉尘);H335 可能造成呼吸道刺激 / H319 eye; H335 respiratory (dust) |
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防范说明 P-statements |
P264, P280, P305+P351+P338, P312 |
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NFPA 704 |
健康 Health 1 / 易燃 Flammability 0 / 反应 Reactivity 0 |
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急性毒性 Acute Toxicity |
低毒:LD₅₀(大鼠,经口) ≈ 4070 mg/kg / Low toxicity: LD₅₀(oral,rat) ≈ 4070 mg/kg |
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危险反应 Hazardous Reaction |
与强酸反应析出苯甲酸;高温分解 / Reacts with acids; decomposes on heating |
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灭火 Fire-fighting |
不可燃固体;用雾状水、干粉灭火 / Non-combustible; water spray, powder |
25 kg 纸塑复合袋或塑料编织袋(内衬 PE 袋);颗粒/柱状可定制。 25 kg laminated/PP woven, PE-lined.
在原包装、干燥条件下 24 个月。 24 months in original dry storage.
Industrial use as general chemical; EU exports subject to REACH (EC 208-534-8)
Food grade must comply with GB 1902-2005 / FCC / E 211 and hold HALAL/KOSHER
Usually non-hazardous; transport class per latest SDS / IATA / IMDG
免责声明 / Disclaimer:本技术数据表仅供参考,不构成任何担保。数据基于编制时可得的公开信息,重庆广益化工有限公司不对因使用本表所产生的任何后果承担责任。实际技术参数请以每批次出厂 COA 为准。 This TDS is for reference only and does not constitute a warranty. Values per batch COA prevail.
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