磷酸氢二钠七水合物

  • 基本信息
  • 制备方法及用途
  • 物化性质
  • 安全信息
  • 毒理性
  • MSDS

磷酸氢二钠七水合物 基本信息

中文名称:
磷酸氢二钠七水合物 
中文别名:
磷酸钠 二元 七水合物;
磷酸氢二钠(七水);
磷酸氢二钠七水合物 
英文名称:
Phosphoric acid,disodium salt, heptahydrate (8CI,9CI)
英文别名:
Sodium phosphate,dibasic heptahydrate;
SODIUM PHOSPHATE, DIBASIC, HEPTAHYDRATE 
CAS No.:
7782-85-6
分 子 式:

H3O4P.7H2O.2Na

分 子 量:
268.07
精确分子量:
268.01500
PSA:
157.84000
MDL:
MFCD00149180
EINECS:
231-448-7
InChI:
InChI=1/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2
危险品标志:

Xi:
 

风险术语:

36/37/38;

安全术语:

26-36;

分子结构式:
SDS:
查看

磷酸氢二钠七水合物 制备方法及用途

制备方法

1.喷雾干燥法

用途简介

1.用作工业水质处理剂、印染洗涤剂、品质改良剂、抗生素培养剂、生化处理剂等 2.用作织物、木材、纸张的阻燃剂,丝的增重剂。是制造活性染料的助剂。在焊接和铜焊中代替硼砂使用。 3. 用作食品品质改良剂 4.用作分析试剂、缓冲剂、软水剂和印染业防火剂,还用于织物增重等 5. 用作分析试剂和pH基准试剂,生化研究。 6.用作木材、纸张和织物的阻燃剂,釉药和焊药,染色用媒染剂,双氧水漂白稳定剂,锅炉软水剂等 7.磷酸氢二钠在水处理领域中主要用作锅炉水的软水剂,用于防止结垢和去除已形成的沉垢。与水中的硬盐作用,生成不溶性的絮状沉淀析出,从而使水得到软化处理。

磷酸氢二钠七水合物 物化性质

外观与性状:
白色粉末
密度:
1.68 g/mL at 25 °C(lit.)
熔点:
48 °C
沸点:
158ºC at 760 mmHg
蒸汽密度:
4.9 (vs air)
存储条件/存储方法:

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

稳定性相关:

如果遵照规格使用和储存则不会分解

避免接触酸

其它信息:

1.      性状:白色晶体

2.      密度(g/mL 25ºC):1.68

3.      相对蒸汽密度(g/mL,空气=1):4.9

4.      熔点(ºC):48

5.      沸点(ºC,常压):未确定

6.      沸点(ºC,5.2kPa):未确定

7.      折射率(n20/D):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(25℃):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(mg/mL)未确定

磷酸氢二钠七水合物 安全信息

海关代码:
2835220000
WGK_Germany:
2
德国有关水污染物质的分类清单
危险类别码:
R36/37/38
安全说明:
S26-S36
RTECS号:
WC4600000
安全标志:
S26:万一接触眼睛,立即使用大量清水冲洗并送医诊治。
S36:穿戴合适的防护服装。
危险标志:
Xi

磷酸氢二钠七水合物 毒理性

CHEMICAL IDENTIFICATION

RTECS NUMBER :
WC4600000
CAS REGISTRY NUMBER :
7782-85-6
LAST UPDATED :
199603
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
H-O4-P.2Na.7H2-O
MOLECULAR WEIGHT :
383.05
WISWESSER LINE NOTATION :
.NA2.P-O3-Q QH7

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
12930 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4887 No. of Facilities: 219 (estimated) No. of Industries: 3 No. of Occupations: 13 No. of Employees: 2878 (estimated) No. of Female Employees: 2288 (estimated)
毒理学数据:

急性毒性:LD50:12930mg/Kg(兔经口)

生态数据:

对水是稍微危害的,若无政府许可,勿将材料排入周围环境

磷酸氢二钠七水合物 MSDS


Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
  Product identifiers
    Product name        : Sodium phosphate dibasic heptahydrate    
    CAS-No.        : 7782-85-6    
  

Section 2. HAZARDS IDENTIFICATION
  Classification of the substance or mixture
    Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
    This substance is not classified as dangerous according to Directive 67/548/EEC.
  Label elements
    Not a hazardous substance or mixture according to EC-directives 67/548/EEC or 1999/45/EC.
  Other hazards - none

Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
  Substances
    Synonyms        : Disodium hydrogen phosphateheptahydrate    
    Disodium phosphate
    Formula        : HNa2O4P · 7H2O    
    Molecular Weight        : 268,07 g/mol    

Section 4. FIRST AID MEASURES
  Description of first aid measures
  If inhaled
    If breathed in, move person into fresh air. If not breathing, give artificial respiration.
  In case of skin contact
    Wash off with soap and plenty of water.
  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.
  Most important symptoms and effects, both acute and delayed
  Indication of any immediate medical attention and special treatment needed
    no data available

Section 5. 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
    Oxides of phosphorus, Sodium oxides
  Advice for firefighters
    Wear self contained breathing apparatus for fire fighting if necessary.
  Further information
    no data available

Section 6. ACCIDENTAL RELEASE MEASURES
  Personal precautions, protective equipment and emergency procedures
    Avoid dust formation. Avoid breathing vapors, mist or gas.
  Environmental precautions
    Do not let product enter drains.
  Methods and materials for containment and cleaning up
    Sweep up and shovel. Keep in suitable, closed containers for disposal.
  Reference to other sections
    For disposal see section 13.

Section 7. HANDLING AND STORAGE
  Precautions for safe handling
    Provide appropriate exhaust ventilation at places where dust is formed.
  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

Section 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
  Control parameters
  Components with workplace control parameters
  Exposure controls
  Appropriate engineering controls
    General industrial hygiene practice.
  Personal protective equipment
  Eye/face protection
    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.
    Full contact
    Material: Nitrile rubber
    Minimum layer thickness: 0,11 mm
    Break through time: 480 min
    Splash protection
    Material: Nitrile rubber
    Minimum layer thickness: 0,11 mm
    Break through time: 480 min
    test method: EN374
    If used in solution, or mixed with other substances, and under conditions which differ from EN 374,
    contact the supplier of the CE approved gloves. This recommendation is advisory only and must
    be evaluated by an Industrial Hygienist familiar with the specific situation of anticipated use by our
    customers. It should not be construed as offering an approval for any specific use scenario.
  Body Protection
    Choose body protection in relation to its type, to the concentration and amount of dangerous
    substances, and to the specific work-place., The type of protective equipment must be selected
    according to the concentration and amount of the dangerous substance at the specific workplace.
  Respiratory protection
    Respiratory protection is not required. Where protection from nuisance levels of dusts are desired,
    use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and
    approved under appropriate government standards such as NIOSH (US) or CEN (EU).

Section 9. PHYSICAL AND CHEMICAL PROPERTIES
  Information on basic physical and chemical properties
    a) Appearance        Form: crystalline, powder    
    Colour: white
    b) Odour        no data available    
    c) Odour Threshold        no data available    
    d) pH        9,0 - 9,3 at 50 g/l at 25 °C    
    e) Melting point/freezing        no data available    
    point
    f) Initial boiling point and no data available
    boiling range
    g) Flash point        not applicable    
    h) Evaporation rate        no data available    
    i) Flammability (solid, gas) no data available
    j) Upper/lower        no data available    
    flammability or
    explosive limits
    k) Vapour pressure        no data available    
    l) Vapour density        no data available    
    m) Relative density        1,68 g/mL at 25 °C    
    n) Water solubility        no data available    
    o) Partition coefficient: n- no data available
    octanol/water
    p) Auto-ignition        no data available    
    temperature
    q) Decomposition        no data available    
    temperature
    r) Viscosity        no data available    
    s) Explosive properties        no data available    
    t) Oxidizing properties        no data available    
  Other safety information
    no data available

Section 10. STABILITY AND REACTIVITY
  Reactivity
    no data available
  Chemical stability
    no data available
  Possibility of hazardous reactions
    no data available
  Conditions to avoid
    Exposure to moisture.
  Incompatible materials
    Acids
  Hazardous decomposition products
    Other decomposition products - no data available

Section 11. 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
    no data available
  Aspiration hazard
    no data available
  Potential health effects
  Inhalation        May be harmful if inhaled. May cause respiratory tract irritation.    
  Ingestion        May be harmful if swallowed.    
  Skin        May be harmful if absorbed through skin. May cause skin irritation.    
  Eyes
    May cause eye irritation.
  Additional Information
    RTECS: Not available

Section 12. 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
    no data available

Section 13. DISPOSAL CONSIDERATIONS
  Waste treatment methods
  Product
    Offer surplus and non-recyclable solutions to a licensed disposal company.
  Contaminated packaging
    Dispose of as unused product.

Section 14. TRANSPORT INFORMATION
  UN number
    ADR/RID: -        IMDG: -        IATA: -    
  UN proper shipping name
    ADR/RID: Not dangerous goods
    IMDG: Not dangerous goods
    IATA:        Not dangerous goods    
  Transport hazard class(es)
    ADR/RID: -        IMDG: -        IATA: -    
  Packaging group
    ADR/RID: -        IMDG: -        IATA: -    
  Environmental hazards
    ADR/RID: no        IMDG Marine Pollutant: no        IATA: no    
  Special precautions for user
    no data available

Section 15. REGULATORY INFORMATION
    This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006.
  Safety, health and environmental regulations/legislation specific for the substance or mixture
    no data available
  Chemical Safety Assessment


SECTION 16 - ADDITIONAL INFORMATION
N/A

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