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亚硝基红盐

亚硝基红盐用途

1.用作测定钴和钾的灵敏试剂.

2.用作光度法测定Co³⁺ 、Fe²⁺、Ru³⁺和K⁺ 等的显色剂。光度法测定Ni²⁺ 时配合掩蔽Co²⁺ 。还用作配合滴定Ni²⁺、Cu²⁺ 等的金属指示剂。

亚硝基红盐名称

[ CAS 号 ]:
525-05-3

[ 中文名 ]:
1-亚硝基-2-萘酚-3,6-二磺酸二钠水合物

[ 英文名 ]:
nitroso-R salt

[中文别名 ]:

[英文别名 ]:

nitroso-R salt
Nitroso R Salt
EINECS 208-369-1
1-Nitroso-2-naphthol-3,6-disulf
1-Nitroso-R-salt
MFCD00003885

亚硝基红盐物理化学性质

[ 熔点 ]:
>300 °C(lit.)

[ 分子式 ]:
C₁₀H₅NNa₂O₈S₂

[ 分子量 ]:
377.258

[ 精确质量 ]:
376.925201

[ PSA ]:
180.82000

[ LogP ]:
2.91310

[ 外观性状 ]:
淡黄色-橙色至黄色-棕色结晶粉末

[ 储存条件 ]:
室温

[ 水溶解性 ]:
水溶性：可溶；微溶：甲醇,乙醇

亚硝基红盐MSDS

详细MSDS(安全技术说明书)

亚硝基红盐毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QJ6480000

CHEMICAL NAME :: 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-nitroso-, disodium salt

CAS REGISTRY NUMBER :: 525-05-3

LAST UPDATED :: 199709

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C10-H5-N-O8-S2.2Na

MOLECULAR WEIGHT :: 377.26

WISWESSER LINE NOTATION :: L66J BNO CQ DSWO HSWO &-NA- 2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 320 mg/kg

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

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#05619 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83882 No. of Facilities: 6 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 23 (estimated)

亚硝基红盐安全信息

[ 符号 ]:

GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H302-H312-H332

[ 警示性声明 ]:
P280

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xn: Harmful;

[ 风险声明 (欧洲) ]:
R20/21/22

[ 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 ]:
3

[ RTECS号 ]:
QJ6480000

[ 海关编码 ]:
2907199090

亚硝基红盐上下游产品

亚硝基红盐上游产品

亚硝基红盐下游产品

亚硝基红盐制备

1.由R盐经歪硝化而制得。将R盐溶于水中，加入浓盐酸，冷至5℃。在剧烈搅拌下，缓缓搅拌下，缓缓滴加预先冷却的亚硝酸钠溶液。加毕，继续搅拌15min。过滤，用水洗杂质，再加乙醇洗涤一次即得纯品。

2.将浓硫酸加热至125～130℃，边搅拌边慢慢加入β-萘酚（浓硫酸为理论量的3倍）进行反应。反应5～6h后，加水并加热至沸，再加入碳酸钡，搅拌均匀，趁热过滤，除去硫酸钡，滤液加热至沸再加入碳酸钠，趁热过滤除去碳酸钡，滤液浓缩，冷却结晶，干燥后研细，用乙醇加热回流以除去2-萘酚-6-，8-二磺酸钠。必要时用水重结晶：

上述制得的犚盐用水溶解后，过滤得清亮滤液，然后加入盐酸并冷到0～5℃，再慢慢加入适量亚硝酸钠，充分搅拌，进行亚硝化反应：

反应结束后，静置、过滤，抽干后用水洗涤，再用乙醇洗涤至合格，即为成品。

亚硝基红盐海关

[ 海关编码 ]: 2907199090

[ 中文概述 ]:
2907199090 其他一元酚. 增值税率:17.0% 退税率:9.0% 监管条件:无最惠国关税:5.5% 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2907199090 other monophenols VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

亚硝基红盐文献

Cobalt skin dose resulting from short and repetitive contact with hard metals.

Contact Dermatitis 70(6) , 361-8, (2014)

Many daily contacts with metallic items are short and repetitive, and result in metal release; material, sweat, friction and wear may all be important.To study cobalt release and skin deposition as a ...

A spot test for detection of cobalt release - early experience and findings.

Contact Dermatitis 63(2) , 63-9, (2010)

It is often difficult to establish clinical relevance of metal exposure in cobalt-allergic patients. Dermatologists and patients may incorrectly assume that many metallic items release cobalt at level...

Metal ion binding to D-xylose isomerase from Streptomyces violaceoruber.

Biochem. J. 250(1) , 285-90, (1988)

The binding of two activating cations, Co2+ and Mg2+, and of one inhibitory cation, Ca2+, to D-xylose isomerase from Streptomyces violaceoruber was investigated. Equilibrium-dialysis and spectrometric...

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