20753-53-1

20753-53-1结构式
20753-53-1结构式

中文名 4-氯苯亚硒酸
英文名 4-chlorobenzeneseleninic acid
中文别名 4-氯苯硒酸
英文别名 4-Chlor-benzolseleninsaeure
4-chloro-benzeneseleninic acid
p-Chlorbenzolselenige Saeure
p-Chlorbenzolseleninsaeure
MFCD00009981
Benzeneseleninic acid,4-chloro
沸点 149.5ºC at 760mmHg
熔点 183-186ºC
分子式 C6H5ClO2Se
分子量 223.51600
闪点 44.2ºC
精确质量 223.91400
PSA 37.30000
LogP 0.83820
蒸汽压 2.86mmHg at 25°C
储存条件

保持贮藏器密封

放入紧密的贮藏器内,储存在阴凉,干燥的地方

稳定性

如果遵照规格使用和储存则不会分解

避免接触氧化物
计算化学

1.疏水参数计算参考值(XlogP):无

2.氢键供体数量:1

3.氢键受体数量:2

4.可旋转化学键数量:1

5.互变异构体数量:无

6.拓扑分子极性表面积37.3

7.重原子数量:10

8.表面电荷:0

9.复杂度:132

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:1

更多

1.性状:未确定

2.密度(g/mL,25/4℃):未确定

3.相对蒸汽密度(g/mL,空气=1):未确定

4.熔点(ºC ):183-186

5.沸点(ºC,常压):未确定

6.沸点(ºC,5.2kPa):未确定

7.折射率:未确定

8.闪点(ºC):未确定

9.比旋光度(º):未确定

10.自燃点或引燃温度(ºC):未确定

11.蒸气压(kPa,25ºC):未确定

12.饱和蒸气压(kPa,60ºC):未确定

13.燃烧热(KJ/mol):未确定

14.临界温度(ºC):未确定

15.临界压力(KPa):未确定

16.油水(辛醇/水)分配系数的对数值:未确定

17.爆炸上限(%,V/V):未确定

18.爆炸下限(%,V/V):未确定

19.溶解性:未确定


Section1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
Product name: 4-Chlorobenzeneseleninic acid
CAS-No.: 20753-53-1
Relevant identified uses of the substance or mixture and uses advised against
Identified uses: Laboratory chemicals, Manufacture of substances



Section2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]
Acute toxicity, Inhalation (Category 3)
Acute toxicity, Oral (Category 3)
Acute aquatic toxicity (Category 1)
Specific target organ toxicity - repeated exposure (Category 2)
Chronic aquatic toxicity (Category 1)
Classification according to EU Directives 67/548/EEC or 1999/45/EC
Toxic by inhalation and if swallowed. Danger of cumulative effects. Very toxic to aquatic organisms, may
cause long-term adverse effects in the aquatic environment.
Label elements
Labelling according Regulation (EC) No 1272/2008 [CLP]
Pictogram
Signal wordDanger
Hazard statement(s)
H301Toxic if swallowed.
H331Toxic if inhaled.
H373May cause damage to organs through prolonged or repeated exposure.
H410Very toxic to aquatic life with long lasting effects.
Precautionary statement(s)
P261Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.
P273Avoid release to the environment.
P301 + P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/
physician.
P311Call a POISON CENTER or doctor/ physician.
P501Dispose of contents/ container to an approved waste disposal plant.
Supplemental Hazardnone
Statements
According to European Directive 67/548/EEC as amended.
Hazard symbol(s)
R-phrase(s)
R23/25Toxic by inhalation and if swallowed.
R33Danger of cumulative effects.
R50/53Very toxic to aquatic organisms, may cause long-term adverse effects in
the aquatic environment.
S-phrase(s)
S20/21When using do not eat, drink or smoke.
S28After contact with skin, wash immediately with plenty of soap and water.
S45In case of accident or if you feel unwell, seek medical advice immediately
(show the label where possible).
S60This material and its container must be disposed of as hazardous waste.
S61Avoid release to the environment. Refer to special instructions/ Safety
data sheets.
Other hazards - none

Section3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
Formula: C6H5ClO2Se
Molecular Weight: 223,52 g/mol
ComponentConcentration
4-Chlorobenzeneseleninic acid
CAS-No.20753-53-1-
Index-No.034-002-00-8

Section4. FIRST AID MEASURES
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Most important symptoms and effects, both acute and delayed
Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and
skin., spasm, inflammation and edema of the larynx, spasm, inflammation and edema of the bronchi,
pneumonitis, pulmonary edema, burning sensation, Cough, wheezing, laryngitis, Shortness of breath,
Headache, Nausea
Indication of any immediate medical attention and special treatment needed
no data available

Section5. FIREFIGHTING MEASURES
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Hydrogen chloride gas, Selenium/selenium oxides
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
no data available

Section6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Wear respiratory protection. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate
ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the
environment must be avoided.
Methods and materials for containment and cleaning up
Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed
containers for disposal.
Reference to other sections
For disposal see section 13.

Section7. HANDLING AND STORAGE
Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.Normal measures for preventive fire
protection.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Specific end use(s)
no data available

Section8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling
the product.
Personal protective equipment
Eye/face protection
Face shield and safety glasses Use equipment for eye protection tested and approved under
appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
the standard EN 374 derived from it.
Body Protection
Complete suit protecting against chemicals, The type of protective equipment must be selected
according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face particle
respirator type N99 (US) or type P2 (EN 143) respirator cartridges as a backup to engineering
controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use
respirators and components tested and approved under appropriate government standards such
as NIOSH (US) or CEN (EU).

Section9. PHYSICAL AND CHEMICAL PROPERTIES
Information on basic physical and chemical properties
a) AppearanceForm: powder
Colour: off-white
b) Odourno data available
c) Odour Thresholdno data available
d) pHno data available
e) Melting point/freezingMelting point/range: 183 - 186 °C - lit.
point
f) Initial boiling point and no data available
boiling range
g) Flash pointno data available
h) Evaporation rateno data available
i) Flammability (solid, gas) no data available
j) Upper/lowerno data available
flammability or
explosive limits
k) Vapour pressureno data available
l) Vapour densityno data available
m) Relative densityno data available
n) Water solubilityno data available
o) Partition coefficient: n- no data available
octanol/water
p) Auto-ignitionno data available
temperature
q) Decompositionno data available
temperature
r) Viscosityno data available
s) Explosive propertiesno data available
t) Oxidizing propertiesno data available
Other safety information
no data available

Section10. STABILITY AND REACTIVITY
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
no data available
Conditions to avoid
no data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available

Section11. TOXICOLOGICAL INFORMATION
Information on toxicological effects
Acute toxicity
no data available
Skin corrosion/irritation
no data available
Serious eye damage/eye irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
IARC:No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity
no data available
Specific target organ toxicity - single exposure
no data available
Specific target organ toxicity - repeated exposure
May cause damage to organs through prolonged or repeated exposure.
Aspiration hazard
no data available
Potential health effects
Inhalation
Toxic if inhaled. May cause respiratory tract irritation.
IngestionToxic if swallowed.
SkinHarmful if absorbed through skin. May cause skin irritation.
EyesMay cause eye irritation.
Signs and Symptoms of Exposure
Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and
skin., spasm, inflammation and edema of the larynx, spasm, inflammation and edema of the bronchi,
pneumonitis, pulmonary edema, burning sensation, Cough, wheezing, laryngitis, Shortness of breath,
Headache, Nausea
Additional Information
RTECS: Not available

Section12. ECOLOGICAL INFORMATION
Toxicity
no data available
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Results of PBT and vPvB assessment
no data available
Other adverse effects
Very toxic to aquatic life with long lasting effects.

Section13. DISPOSAL CONSIDERATIONS
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed
professional waste disposal service to dispose of this material. Dissolve or mix the material with a
combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
Contaminated packaging
Dispose of as unused product.

Section14. TRANSPORT INFORMATION
UN number
ADR/RID: 2928IMDG: 2928IATA: 2928
UN proper shipping name
ADR/RID: TOXIC SOLID, CORROSIVE, ORGANIC, N.O.S. (4-Chlorobenzeneseleninic acid)
IMDG: TOXIC SOLID, CORROSIVE, ORGANIC, N.O.S. (4-Chlorobenzeneseleninic acid)
IATA:Toxic solid, corrosive, organic, n.o.s. (4-Chlorobenzeneseleninic acid)
Transport hazard class(es)
ADR/RID: 6.1 (8)IMDG: 6.1 (8)IATA: 6.1 (8)
Packaging group
ADR/RID: IIIMDG: IIIATA: II
Environmental hazards
ADR/RID: yesIMDG Marine Pollutant: yesIATA: no
Special precautions for user
no data available



SECTION 15 - REGULATORY INFORMATION
N/A


SECTION 16 - ADDITIONAL INFORMATION
N/A

生态学数据:

对水是极其危害的,若无政府许可,勿将材料排入周围环境。

危害码 (欧洲) T: Toxic;N: Dangerous for the environment;
风险声明 (欧洲) 23/25-33-50/53
安全声明 (欧洲) 20/21-28-45-60-61
危险品运输编码 UN 2928 6.1/PG 2
WGK德国 3
包装等级 II
危险类别 6.1
海关编码 2916399090
海关编码 2916399090
中文概述 2916399090 其他芳香一元羧酸. 增值税率:17.0% 退税率:9.0% 监管条件:无 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, 丙烯酸、丙烯酸盐或酯应报明包装
Summary 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%