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磷酸氢二钠

磷酸氢二钠用途

磷酸二钠也称为Na2HPO4,用于调节液体的pH。磷酸二钠可用作赋形剂,如缓冲剂、螯合剂等。药用辅料,或称药用辅料,是指除药物成分外,在制药过程中使用的其他化学物质。药用辅料一般是指药物制剂中的非活性成分,可以提高药物制剂的稳定性、溶解性和加工性。药用辅料也会影响联合给药药物的吸收、分布、代谢和消除(ADME)过程[1][2]。

磷酸氢二钠名称

[ CAS 号 ]:
7558-79-4

[ 中文名 ]:
磷酸氢二钠

[ 英文名 ]:
Disodium hydrogenorthophosphate

[中文别名 ]:

[英文别名 ]:

磷酸氢二钠生物活性

[ 描述 ]:

磷酸二钠也称为Na2HPO4,用于调节液体的pH。磷酸二钠可用作赋形剂,如缓冲剂、螯合剂等。药用辅料,或称药用辅料,是指除药物成分外,在制药过程中使用的其他化学物质。药用辅料一般是指药物制剂中的非活性成分,可以提高药物制剂的稳定性、溶解性和加工性。药用辅料也会影响联合给药药物的吸收、分布、代谢和消除(ADME)过程[1][2]。

[ 相关类别 ]:

研究领域 >> 其他
信号通路 >> 其他 >> 其他

[参考文献]

[1]. Baldus M, et al. Structure investigation on anhydrous disodium hydrogen phosphate using solid-state NMR and X-ray techniques[J]. Journal of the American Chemical Society, 1995, 117(18): 5141-5147.

[2]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99.  

磷酸氢二钠物理化学性质

[ 密度 ]:
1.064 g/mL at 20 °C

[ 沸点 ]:
158ºC at 760 mmHg

[ 熔点 ]:
243-245 °C

[ 分子式 ]:
HNa2O4P

[ 分子量 ]:
141.96

[ 精确质量 ]:
141.940781

[ PSA ]:
93.23000

[ 外观性状 ]:
白色粒状的粉末

[ 蒸汽密度 ]:
4.9 (vs air)

[ 储存条件 ]:
Store at RT.

[ 稳定性 ]:
Stable. Incompatible with strong acids. Hygroscopic.

[ 水溶解性 ]:
>=10 g/100 mL at 20 ºC

磷酸氢二钠MSDS

磷酸氢二钠毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
WC4500000
CAS REGISTRY NUMBER :
7558-79-4
LAST UPDATED :
199701
DATA ITEMS CITED :
11
MOLECULAR FORMULA :
H-O4-P.2Na
MOLECULAR WEIGHT :
141.96
WISWESSER LINE NOTATION :
NA2 P-O-Q3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,16,1972
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,16,1972 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
17 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,16,1972
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BIZEA2 Biochemische Zeitschrift. (Berlin, Ger.) V.1-346, 1906-67. For publisher information, see EJBCAI. Volume(issue)/page/year: 163,226,1925
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BIZEA2 Biochemische Zeitschrift. (Berlin, Ger.) V.1-346, 1906-67. For publisher information, see EJBCAI. Volume(issue)/page/year: 163,226,1925
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intramuscular
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BIZEA2 Biochemische Zeitschrift. (Berlin, Ger.) V.1-346, 1906-67. For publisher information, see EJBCAI. Volume(issue)/page/year: 163,226,1925
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
1075 mg/kg
TOXIC EFFECTS :
Behavioral - tetany
REFERENCE :
HXPHAU Handbuch der Experimentellen Pharmakologie. (Berlin, Ger.) New series: V.1-49, 1935-78. For publisher information, see HEPHD2. Volume(issue)/page/year: 10,361,1950 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83514 No. of Facilities: 6564 (estimated) No. of Industries: 85 No. of Occupations: 60 No. of Employees: 57176 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83514 No. of Facilities: 21015 (estimated) No. of Industries: 166 No. of Occupations: 135 No. of Employees: 1230592 (estimated) No. of Female Employees: 912048 (estimated)

磷酸氢二钠安全信息

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

[ 危害码 (欧洲) ]:
Xi

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S36-S24/25

[ 危险品运输编码 ]:
UN 3077 9 / PGIII

[ WGK德国 ]:
3

[ RTECS号 ]:
WC4500000

[ 海关编码 ]:
2835220000

磷酸氢二钠制备

1.喷雾干燥法 将十二水磷酸氢二钠加入溶解槽中加热溶解,添加少量工业磷酸,调节pH8.8—9.0,溶液温度80--85℃,用泵送至计量槽,经喷雾器雾化,雾化器选用二流式汽动喷头,蒸汽压力0.15—0.3 Mpa,雾化器汽流导角与水平成30°,汽液比(0.4~5):1。热炉气进口温度650--750℃。可并流干燥,也可逆流干燥。如逆流干燥,进口温度620--650℃,出口温度140~150℃。成品粒度90μm左右占60%,水分含量<1%。制得无水磷酸氢二钠成品。 2.在20%磷酸溶液中按化学计量加入浓度大致相同的碳酸钠或氢氧化钠溶液。使pH值达到8.9~9.0。过滤,在蒸汽浴上将滤液蒸发浓缩。如果此溶液在0~30℃结晶出来得到Na2HPO4·12H2O,在35~48℃下可得Na2HPO4·2H2O。将水合晶体放在烘箱中先在35~40℃下保持3h,然后在95℃下烘至恒重。则得到无水化物Na2HPO4。 3. 将试剂12水合磷酸氢二钠摊成薄层,于100℃下干燥,即得无水磷酸氢二钠。 4. 制造方法有热法磷酸中和法和湿法磷酸中和法。
(1)热法磷酸中和法 将热法磷酸加入耐腐蚀的中和反应器中,在搅拌下缓慢加入纯碱溶液进行中和反应,使反应液的ph值为8.4~8.6。然后过滤,并向滤液中加入适量的烧碱以调节ph值在8.4~8.6。将滤液送至冷却结晶器,冷却至25~27℃时便析出结晶,经分离、干燥后制得十二水磷酸氢二钠成品。反应式如下: (2))湿法磷酸中和法 将湿法 ( 萃取)磷酸加入耐腐蚀的中和反应器中,在搅拌下缓慢加入纯碱溶液进行中和反应,直到中和液呈微碱性 (ph=8.4~8.6) 。中和温度维持在90~100℃。然后趁热过滤,滤液蒸发浓缩,送去冷却结晶,然后离心分离,室温下干燥,制得十二水磷酸氢二钠成品。无水物磷酸氢二钠的制法,是将之加热熔化后,在热气流中喷雾干燥而成。该方法的反应式如下:

磷酸氢二钠海关

[ 海关编码 ]: 2835220000

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【磷酸氢二钠】化源网提供磷酸氢二钠CAS号7558-79-4,磷酸氢二钠MSDS及其说明、性质、英文名、生产厂家、作用/用途、分子量、密度、沸点、熔点、结构式等。CAS号查询磷酸氢二钠上化源网,专业又轻松。>>电脑版:磷酸氢二钠

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