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铬酸钠

铬酸钠用途

主要用于墨水、印染、油漆颜料、鞣革、金属缓蚀剂,制造其他铬盐,有机合成氧化剂及化学试剂等
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铬酸钠名称

[ CAS 号 ]:
7775-11-3

[ 中文名 ]:
铬酸钠

[ 英文名 ]:
Sodium chromate anhydrous

[英文别名 ]:

铬酸钠物理化学性质

[ 密度 ]:
1.483

[ 沸点 ]:
392ºC

[ 熔点 ]:
792ºC

[ 分子式 ]:
CrNa2O4

[ 分子量 ]:
161.97300

[ 精确质量 ]:
161.90000

[ PSA ]:
80.26000

[ 外观性状 ]:
黄色晶体

[ 储存条件 ]:
室温

[ 水溶解性 ]:
530 G/L (20 ºC)

铬酸钠MSDS

铬酸钠毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GB2955000
CHEMICAL NAME :
Chromic acid, disodium salt
CAS REGISTRY NUMBER :
7775-11-3
LAST UPDATED :
199712
DATA ITEMS CITED :
44
MOLECULAR FORMULA :
Cr-O4.2Na
MOLECULAR WEIGHT :
161.98
WISWESSER LINE NOTATION :
NA2 CR-O2-Q2

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 :
57 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - coma
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
32 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
235 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Mammal - cat
DOSE/DURATION :
164 mg/kg
TOXIC EFFECTS :
Vascular - BP lowering not characterized in autonomic section Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
243 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
32 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intradermal
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
250 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex) Behavioral - muscle weakness Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
206 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
206 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
30 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intradermal
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
382 mg/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
5 mg/kg
SEX/DURATION :
male 5 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct

MUTATION DATA

TYPE OF TEST :
DNA damage
TEST SYSTEM :
Bird - chicken Embryo
REFERENCE :
CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House, Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1980- Volume(issue)/page/year: 4,959,1983 *** REVIEWS *** ACGIH TLV-TWA 0.05 mg(Cr)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-Confirmed human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 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: 23,205,1980 IARC Cancer Review:Human Sufficient 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: 49,49,1990 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: 23,205,1980 IARC Cancer Review:Group 1 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: 49,49,1990 TOXICOLOGY REVIEW 85DHAX "Medical and Biologic Effects of Environmental Pollutants Series," Washington, DC, National Academy of Sciences, 1972-77 Volume(issue)/page/year: Cr,22,1974 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.5 mg(Cr)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,35,1971 OSHA PEL (Gen Indu):CL 0.1 mg(CrO3)/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):CL 0.1 mg(CrO3)/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):CL 0.1 mg(CrO3)/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):CL 0.1 mg(CrO3)/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 CHROMIUM(VI)-air:10H CA TWA 0.001 mg(Cr)/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 - 68900 No. of Facilities: 3942 (estimated) No. of Industries: 69 No. of Occupations: 48 No. of Employees: 34156 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 68900 No. of Facilities: 3561 (estimated) No. of Industries: 66 No. of Occupations: 59 No. of Employees: 80015 (estimated) No. of Female Employees: 3487 (estimated)
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铬酸钠安全信息

[ 符号 ]:

GHS05, GHS06, GHS08, GHS09

[ 信号词 ]:
Danger

[ 危害声明 ]:
H301-H312-H314-H317-H330-H334-H340-H350-H360FD-H372-H410

[ 警示性声明 ]:
P201-P260-P273-P280-P304 + P340 + P310-P305 + P351 + P338

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges

[ 危害码 (欧洲) ]:
T+:Very toxic; N:Dangerous for the environment;

[ 风险声明 (欧洲) ]:
R21;R25;R26;R34;R42/43;R45;R46;R48/23;R50/53;R60;R61

[ 安全声明 (欧洲) ]:
S45-S53-S60-S61

[ 危险品运输编码 ]:
UN 3288

[ WGK德国 ]:
3

[ RTECS号 ]:
GB2955000

[ 包装等级 ]:
II

[ 危险类别 ]:
6.1

铬酸钠制备

1.采用中和法。将重铬酸钠碱性液加入中和器。再加入重铬酸钠母液进行中和反应,经过滤、澄清、冷却结晶,制得铬酸钠成品。

2.以铬铁矿(Fe、Mg)O·(Cr 、Al、Fe)2O3为原料,在强氧化剂存在下用碱分解矿石。氧化焙烧在管式炉中进行,温度1100~1200℃。当炉料加热至不太高的温度 (600~800℃)时,便开始生成铬酸钠。待温度升至接近1000℃时,铬酸钠的生成速度增大。反应原理可以下列方程式近似地表示。

反应过程中产生的副产物 ( 亚铁酸钠、铝酸钠及硅酸钠等)又与铬铁矿、石灰及氧反应,生成铬酸钠及不溶的钙化物,因而该方法的产率较高 (75%~81%) 。一种改进的方法是,先在1000℃下焙烧铬铁矿和添加剂氧化钙,生成亚铬酸  铬酸钙 (CaO·4CrO3·Cr2O3) ,然后再加入纯碱,于600~700℃使与亚铬酸  铬酸钙反应,生成铬酸钠和少量其他副产物。用水浸取处理,再向水溶液中通入CO2,将形成的Ca(OH)2变成CaCO3沉淀出来,而生成的CaCrO4 再与纯碱反应而生成NaCrO。

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铬酸钠文献

Fc Engineering of Human IgG1 for Altered Binding to the Neonatal Fc Receptor Affects Fc Effector Functions.

J. Immunol. 194 , 5497-508, (2015)

Engineering of the constant Fc part of monoclonal human IgG1 (hIgG1) Abs is an approach to improve effector functions and clinical efficacy of next-generation IgG1-based therapeutics. A main focus in ...

Human Skin Cells Are More Sensitive than Human Lung Cells to the Cytotoxic and Cell Cycle Arresting Impacts of Particulate and Soluble Hexavalent Chromium.

Biol. Trace Elem. Res. 166 , 49-56, (2015)

Hexavalent chromium Cr(VI) is a known human lung carcinogen, with solubility playing an important role in its carcinogenic potency. Dermal exposure to Cr(VI) is common and has been associated with ski...

Antibody stabilization of peptide-MHC multimers reveals functional T cells bearing extremely low-affinity TCRs.

J. Immunol. 194(1) , 463-74, (2014)

Fluorochrome-conjugated peptide-MHC (pMHC) multimers are commonly used in combination with flow cytometry for direct ex vivo visualization and characterization of Ag-specific T cells, but these reagen...


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公司名:上海阿拉丁生化科技股份有限公司

区域:上海市浦东新区

价格:
¥498.0/500g ¥需询单/1g ¥166.0/100g ¥需询单/1g

联系人:阿拉丁

产品详情:无水铬酸钠


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【铬酸钠】化源网提供铬酸钠CAS号7775-11-3,铬酸钠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号查询铬酸钠上化源网,专业又轻松。>>电脑版:铬酸钠

标题:铬酸钠_MSDS_用途_密度_铬酸钠CAS号【7775-11-3】_化源网 地址:https://m.chemsrc.com/mip/cas/7775-11-3_1042129.html