氟硅酸钠

氟硅酸钠用途

【用途一】
用作杀虫剂、粘着剂，也用于陶瓷、玻璃、搪瓷、木材防腐、医药、水处理、皮革、橡胶及制氟化钠等
【用途二】
用作分析试剂、防腐剂、杀菌剂，也用于搪瓷工业
【用途三】
用作玻璃、搪瓷乳白剂，铝合金焊接助熔剂，木材防腐、杀虫剂，耐酸水泥吸湿剂，饮水氟化剂等
【用途四】
用作玻璃和搪瓷的乳白剂、助熔剂，木材防腐剂，农业杀虫剂，耐酸水泥的吸湿剂。天然乳胶制品中用作凝固剂，电镀锌、镍、铁三元镀层中用作添加剂，还用作塑料填充剂。此外，还用于制药和饮用水的氟化处理，及制造人造冰晶石和氟化钠。
【用途五】
熔融分解硅酸盐。铍和铝的合金,陶瓷器的搪瓷，制造乳白玻璃，用氟硅酸钠，草木灰和水(1:2:300)治小麦冬锈病，可降低以病率。羊毛制品防蛀和木材防腐。

氟硅酸钠名称

[ CAS 号 ]:
16893-85-9

[ 中文名 ]:
氟硅酸钠

[ 英文名 ]:
Sodium Silicofluoride

[英文别名 ]:

Sodium hexafluorosilicate
EINECS 240-934-8
MFCD00003491
sodium silicofluoride
Silicate(2-), hexafluoro-, sodium (1:2)
Sodium fluorosilicate

氟硅酸钠物理化学性质

[ 密度 ]:
2.68 g/mL at 25 °C(lit.)

[ 分子式 ]:
F₆Na₂Si

[ 分子量 ]:
188.05500

[ 精确质量 ]:
187.94700

[ LogP ]:
2.14040

[ 外观性状 ]:
白色结晶粉末

[ 折射率 ]:
1.310

[ 储存条件 ]:
库房通风低温干燥,与食品、酸类分开储运

[ 稳定性 ]:
Stable. Incompatible with oxidizing agents, water. Moisture sensitive.

氟硅酸钠MSDS

详细MSDS(安全技术说明书)

氟硅酸钠毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VV8410000

CHEMICAL NAME :: Silicate(2-), hexafluoro-, disodium

CAS REGISTRY NUMBER :: 16893-85-9

LAST UPDATED :: 199710

DATA ITEMS CITED :: 23

MOLECULAR FORMULA :: F6-Si.2Na

MOLECULAR WEIGHT :: 188.07

WISWESSER LINE NOTATION :: .NA2.SI-F6

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,563,1982

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,573,1982

TYPE OF TEST :: Rinsed with water

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,573,1982 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 125 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: ARSIM* Agricultural Research Service, USDA Information Memorandum. (Beltsville, MD 20705) Volume(issue)/page/year: 20,21,1966

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 70 mg/kg

TOXIC EFFECTS :: Liver - fatty liver degeneration Liver - other changes Kidney, Ureter, Bladder - changes primarily in glomeruli

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: 39,246,1930

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 70 mg/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Behavioral - ataxia Behavioral - muscle contraction or spasticity

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 53(11),80,1988

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 125 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C268,1991

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Amphibian - frog

DOSE/DURATION :: 448 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1849- Volume(issue)/page/year: 124,133,1937 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 248 mg/kg/30D-I

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 53(11),80,1988 *** REVIEWS *** IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 27,237,1982 IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 27,237,1982 IARC Cancer Review:Group 3 IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,208,1987 TOXICOLOGY REVIEW AMSSAQ Acta Medica Scandinavica, Supplement. (Almqvist & Wiksell, POB 45150, S-10430 Stockholm, Sweden) No.1-730, 1921-88. Volume(issue)/page/year: 400,5,1963 *** 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 OSHA PEL (Gen Indu):8H TWA 2.5 mg(F)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 2.5 mg(F)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 2.5 mg(F)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 2.5 mg(F)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO FLUORIDES, INORGANIC-air:10H TWA 2.5 mg(F)/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84233 No. of Facilities: 3995 (estimated) No. of Industries: 43 No. of Occupations: 50 No. of Employees: 20064 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84233 No. of Facilities: 8057 (estimated) No. of Industries: 74 No. of Occupations: 60 No. of Employees: 79556 (estimated) No. of Female Employees: 22185 (estimated)

氟硅酸钠安全信息

[ 符号 ]:

GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H301 + H311 + H331

[ 警示性声明 ]:
P261-P280-P301 + P310-P311

[ 个人防护装备 ]:
Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges

[ 危害码 (欧洲) ]:
T:Toxic

[ 风险声明 (欧洲) ]:
R23/24/25

[ 安全声明 (欧洲) ]:
S26-S45

[ 危险品运输编码 ]:
UN 2674 6.1/PG 3

[ WGK德国 ]:
2

[ RTECS号 ]:
VV8410000

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

氟硅酸钠制备

1.过磷酸钙副产法由磷矿粉和硫酸反应生产过磷酸钙或萃取磷酸时逸出的含氟废气，用水吸收四氟化硅使成氟硅酸。当氟硅酸溶液的浓度达8%～10%时，静止澄清，除去杂质，澄清的氟硅酸溶液中加入氯化钠（过量约25%）反应，生成氟硅酸钠，经离心分离、洗涤、300℃以下温度下进行气流干燥，再经粉碎，制得氟硅酸钠成品。其反应式如下：
2. 采用过磷酸钙副产法。将过磷酸钙（或萃取磷酸）生产过程中的含氟废气用水吸收，再与氯化钠反应而得。 3. 在试剂碳酸钠水溶液中，分次少量加入理论量的氟硅酸水溶液进行反应：反应结束后，静置过滤，离心甩干，于120℃下干燥即可。 4. 过磷酸钙副产法　由磷矿粉和硫酸反应生产过磷酸钙或萃取磷酸时逸出的含氟废气，用水吸收四氟化硅使成氟硅酸。当氟硅酸溶液的含量达8%～10%时，静置澄清，除去杂质，澄清的氟硅酸溶液中加入氯化钠（过量约25%）反应，生成氟硅酸钠，经离心分离、洗涤、300℃以下温度下进行气流干燥，再经粉碎，制得氟硅酸钠成品。其反应式如下： 5. 将含二氧化硅4.6%和Na2SiH620.5%的氟硅酸用过量10%～20%化学计量的硫酸钠27%溶液处理，在硅酸溶胶中得到氟硅酸钠悬浮体。再在152～202.7kPa的压力下水力分离。副产物母液用干燥碳酸钠按8.8～9.3质量份/100质量份母液的比率中和副产母液，用86%～95%化学计量的硫酸钠处理氟硅酸，得到含78.5%～80.5%Na2SiH6的浆液。 6. 硫酸分解萤石矿生产氟硅酸钠的工艺流程如下：

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