多聚甲醛

多聚甲醛用途

【用途一】
多聚甲醛为高甲醛含量的固态甲醛，呈固体颗粒状、便于贮存和运输。在较高的温度下能变成甲醛蒸气，易于代替高浓度甲醛参与各种反应，有利于化工、制药等化学合成及其他工业领域的应用，特别是在要求使用无水甲醛作原料的合成方面，用途广泛。主要有以下几方面
（1）农药：合成乙草胺、丁草胺和草甘膦等；
（2）涂料：合成高档汽车用漆；
（3）树脂：合成脲醛树脂、酚醛树脂、聚缩醛树脂、蜜胺树脂、离子交换树脂等及各种粘合剂；
（4）造纸：合成纸张增强剂；
（5）铸造：翻砂脱膜剂、合成铸造粘合剂；
（6）养殖业：薰蒸消毒剂。
（7）有机原料：用于制备季戊四醇、三羟甲基丙烷、甘油、丙烯酸、丙烯酸甲酯、甲基丙烯酸、N－羟基甲基丙烯酰胺、烷基苯酚、甲基乙烯基酮等。
（8）其他：医药及消毒。
【用途二】
用于制药工业，也用作灭菌剂
【用途三】
用作有机化工、合成树脂的原料，也用作药物熏蒸剂

多聚甲醛名称

[ CAS 号 ]:
30525-89-4

[ 中文名 ]:
多聚甲醛

[ 英文名 ]:
Paraformaldehyde

[中文别名 ]:

[英文别名 ]:

Paraformaldehyde
Polyoxymethylene
EINECS 200-001-8
MFCD00133991

多聚甲醛物理化学性质

[ 密度 ]:
0.9±0.1 g/cm3

[ 沸点 ]:
82.5±8.0 °C at 760 mmHg

[ 熔点 ]:
120-170ºC

[ 分子式 ]:
C₂H₆O₂

[ 分子量 ]:
62.068

[ 闪点 ]:
39.9±6.3 °C

[ 精确质量 ]:
62.036777

[ PSA ]:
17.07000

[ LogP ]:
-0.88

[ 外观性状 ]:
白色粉末带有形态像醛的气味

[ 蒸汽密度 ]:
1.03 (vs air)

[ 蒸汽压 ]:
51.0±0.3 mmHg at 25°C

[ 折射率 ]:
1.364

[ 储存条件 ]:
库房通风低温干燥,与氧化剂分开存放

[ 稳定性 ]:
Stable. Incompatible with strong acids, organic acids, strong oxidizing agents, oxides, alkalies, strong bases, amines. Combustible. Dust may form an explosive mixture with air. Liberates poisonous gases on combustion.

[ 水溶解性 ]:
chlorophenol above 70°C: soluble | sparingly soluble

多聚甲醛MSDS

详细MSDS(安全技术说明书)

多聚甲醛毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: RV0540000

CHEMICAL NAME :: Paraformaldehyde

CAS REGISTRY NUMBER :: 30525-89-4

LAST UPDATED :: 199806

DATA ITEMS CITED :: 16

WISWESSER LINE NOTATION :: /*VH*/ X

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: BIOFX* BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062)

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: BIOFX* BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) ** ACUTE TOXICITY DATA **

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 800 mg/kg

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

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1070 mg/m3/4H

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - changes in structure or function of salivary glands

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 10000 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Skin and Appendages - corrosive (after topical exposure) Nutritional and Gross Metabolic - body temperature decrease

REFERENCE :: BIOFX* BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. (1810 Frontage Rd., Northbrook, IL 60062) ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 9 gm/kg/90D-C

TOXIC EFFECTS :: Behavioral - fluid intake Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 365 mL/kg/2Y-C

TOXIC EFFECTS :: Gastrointestinal - other changes Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 9 gm/kg/90D-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Nutritional and Gross Metabolic - weight loss or decreased weight gain

MUTATION DATA

TYPE OF TEST :: Morphological transformation

TEST SYSTEM :: Rodent - rat Embryo

DOSE/DURATION :: 2200 ng/plate

REFERENCE :: JJATDK JAT, Journal of Applied Toxicology. (John Wiley & Sons Ltd., Baffins Lane, Chichester, W. Sussex PO19 1UD, UK) V.1- 1981- Volume(issue)/page/year: 1,190,1981 *** REVIEWS *** TOXICOLOGY REVIEW 27ZTAP "Clinical Toxicology of Commercial Products--Acute Poisoning," 3rd ed., Gleason, M.N., et al., eds., Baltimore, Williams and Wilkins, 1969 Volume(issue)/page/year: 3,108,1969 *** 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 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M1528 No. of Facilities: 236 (estimated) No. of Industries: 5 No. of Occupations: 19 No. of Employees: 1872 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1528 No. of Facilities: 8271 (estimated) No. of Industries: 54 No. of Occupations: 65 No. of Employees: 146532 (estimated) No. of Female Employees: 20414 (estimated)

多聚甲醛安全信息

[ 符号 ]:

GHS02, GHS05, GHS07, GHS08

[ 信号词 ]:
Danger

[ 危害声明 ]:
H228-H302 + H332-H315-H317-H318-H335-H351

[ 警示性声明 ]:
P210-P261-P280-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) ]:
Xn:Harmful

[ 风险声明 (欧洲) ]:
R20/22;R36/37/38;R40;R43

[ 安全声明 (欧洲) ]:
S24-S26-S36/37/39-S45

[ 危险品运输编码 ]:
UN 2213

[ WGK德国 ]:
3

[ RTECS号 ]:
RV0540000

[ 包装等级 ]:
III

[ 危险类别 ]:
4.1

[ 海关编码 ]:
2912600000

多聚甲醛制备

1、将37%的甲醛在减压下蒸发，经催化缩合得到固体甲醛，过滤，用水洗涤，经真空干燥制得成品，含量一般为93-95%。每吨多聚甲醛消耗37%的甲醛3180kg。

多聚甲醛海关

[ 海关编码 ]: 2912600000

多聚甲醛文献

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Far-field optical nanoscopy has been widely used to image small objects with sub-diffraction-limit spatial resolution. Particularly, reversible saturable optical fluorescence transition (RESOLFT) nano...

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Rapid titration of measles and other viruses: optimization with determination of replication cycle length.

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