柠檬酸二氢钠

【用途一】
作Ph调节剂，我国规定可用于各类食品，按生产需要适量使用。
【用途二】
供外用避孕片作发泡剂。

[ 沸点 ]:
309.6ºC at 760mmHg

[ 熔点 ]:
212 °C(lit.)

[ 分子式 ]:
C₆H₇NaO₇

[ 分子量 ]:
214.105

[ 闪点 ]:
155.2ºC

[ 精确质量 ]:
214.008942

[ PSA ]:
134.96000

[ 外观性状 ]:
白色结晶粉末

[ 储存条件 ]:
室温

[ 水溶解性 ]:
H2O: 0.25 M at 20 °C, clear, colorless

详细MSDS(安全技术说明书)

CHEMICAL IDENTIFICATION

RTECS NUMBER :

GE7950000

CHEMICAL NAME :

Citric acid, sodium salt

CAS REGISTRY NUMBER :

18996-35-5

LAST UPDATED :

199706

DATA ITEMS CITED :

5

MOLECULAR FORMULA :

C6-H7-O7.Na

MOLECULAR WEIGHT :

214.12

WISWESSER LINE NOTATION :

QV1XQVQ1VQ &-NA-

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1348 mg/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - cyanosis Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :

JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 94,65,1948

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

1635 mg/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - cyanosis Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :

JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 94,65,1948

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

49 mg/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - cyanosis Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :

JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 94,65,1948

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

379 mg/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - cyanosis Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :

JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 94,65,1948

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xi: Irritant;

[ 风险声明 (欧洲) ]:
R36

[ 安全声明 (欧洲) ]:
S22-S24/25

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
1

[ RTECS号 ]:
GE7950000

[ 海关编码 ]:
2918150000

详细合成路线

柠檬酸二氢钠上游产品

柠檬酸二氢钠下游产品

先将碳酸氢钠搅拌溶解于热水，然后于85~90℃下，加入计算量的柠檬酸中和。再脱色，并趁热过滤。滤液经减压浓缩、冷却结晶、离心分离、洗涤、干燥，得柠檬酸一钠。
C6H8O7+NaHCO3→C6H7NaO7+CO2↑+H2O

[ 海关编码 ]: 2918150000

[ 中文概述 ]:
2918150000. 柠檬酸盐和柠檬酸酯. 增值税率:17.0%. 退税率:13.0%. 监管条件:4ABxy(出口许可证,入境货物通关单,出境货物通关单出口许可证(加工贸易),出口许可证(边境小额贸易)). 最惠国关税:6.5%. 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ 监管条件 ]: 4.出口许可证 A.入境货物通关单 B.出境货物通关单 x.出口许可证(加工贸易) y.出口许可证(边境小额贸易)

[ 检验检疫 ]: R.进口食品卫生监督检验 S.出口食品卫生监督检验 N.出口商品检验

[ Summary ]:
2918150000. other salts and esters of citric acid. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:4ABXY(export license,certificate of inspection for goods inward,certificate of inspection for goods outwardexport license(processing trade),export license(border small volume trade)). MFN tariff:6.5%. General tariff:30.0%

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