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16005

Sigma-Aldrich

多聚甲醛

meets analytical specification of DAC, 95.0-100.5%

别名:

聚氧亚甲基

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1 KG
$81.00
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$462.00

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1 KG
$81.00
6 X 1 KG
$462.00

About This Item

线性分子式:
HO(CH2O)nH
CAS号:
30525-89-4
分子量:
30.03 (as monomer)
MDL编号:
MFCD00133991
UNSPSC代码:
12352100
PubChem化学物质编号:
24849849
NACRES:
NA.22

$81.00

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蒸汽密度

1.03 (vs air)

蒸汽压

<1.45 mmHg ( 25 °C)

方案

95.0-100.5%

表单

pellets

自燃温度

572 °F

质量

meets analytical specification of DAC

expl. lim.

73 %

技术

NMR: suitable

杂质

residual solvents, in accordance
<0.1% sulfated ash
10 ppm heavy metals (as Pb)

mp

120-170 °C (lit.)

溶解性

water: insoluble

密度

0.88 g/mL at 25 °C (lit.)

适用性

in accordance for appearance of solution
suitable for acidity or alkalinity (complying)

储存温度

2-8°C

SMILES字符串

[O-]#[C+H2]

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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一般描述

缓冲苦味酸-多聚甲醛固定剂适用于电子显微镜和光显微镜免疫细胞化学。[1]

应用

多聚甲醛可以用来制备亚甲胺叶立德。在氨基修饰单壁碳纳米管合成中也需要要用到多聚甲醛。[2]它还可以用来制备 α-亚甲基色原烷, α-亚甲基喹啉和正色-醌甲基化物。[3]

警示用语：

Danger

危险分类

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 1B - Eye Dam. 1 - Flam. Sol. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

靶器官

Respiratory system

储存分类代码

4.1B - Flammable solid hazardous materials

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SDBB2181
STBL3782
STBL4527
STBL2820
STBL1058

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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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