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Merck
CN

15512

甲醛 溶液

≥34.5 wt. in H₂O, solution, meets analytical specification of USP, contains 9-15% methanol as stabilizer (to prevent polymerization)

别名:

福尔马林

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线性分子式:
HCHO
化学文摘社编号:
50-00-0
分子量:
30.03
UNSPSC Code:
12352114
eCl@ss:
39021101
PubChem Substance ID:
57647382
NACRES:
NA.21
Beilstein/REAXYS Number:
1209228
MDL number:
MFCD00003274

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产品名称

甲醛 溶液, meets analytical specification of USP, ≥34.5 wt. %

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

vapor density

1.03 (vs air)

vapor pressure

52 mmHg ( 37 °C)

autoignition temp.

572 °F

quality

meets analytical specification of USP

contains

9.0-15.0% methanol as stabilizer (GC)

concentration

≥34.5 wt. %
25-50%

impurities

acidic reac. substances, complies
 residual solvents, complies

ign. residue

≤0.01% (as SO4)

density

1.09 g/mL at 25 °C (lit.)

suitability

corresponds for identity

Quality Level

200

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相关类别

Application

甲醛溶液被用于制备甲醛储液,以便开发包容灵敏性和选择性试剂的透明溶胶凝胶，用于检测空气中甲醛。它可用于制备具有不同形状和不同粒径的纳米晶金属（Cu，Hg，Zn，Bi，Pb）硫化物。

General description

市场上销售的甲醛溶液是含有37%甲醛和8-10%甲醇的水溶液。通过加入催化量的镧系元素三氟甲磺酸酯，可以活化甲醛溶液。这种活化的甲醛溶液被用于与硅烯醇醚发生平稳的羟甲基化反应。甲醛溶液与硅烯醇醚反应，以高产率获得相应的羟甲基化加合物。

Other Notes

货号15512-4X2.5L-R的产品即将停产。请订购15512-2.5L-R单瓶装，因为其具体参数与上述产品本质相同。
货号15512-6X1L-R的产品即将停产。请订购15512-1L-R单瓶装，因为其具体参数与上述产品本质相同。

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3

target_organs

Eyes,Central nervous system, Respiratory system

存储类别

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

143.6 °F - closed cup

flash_point_c

62 °C - closed cup

法规信息

危险化学品
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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SDBB5319
SDBB4419
SDBB3964
SDBB3965
STBL1232

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Lanthanide Trifluoromethanesulfonates as Stable Lewis Acids in Aqueous Media. Yb (OTf)3 Catalyzed Hydroxymethylation Reaction of Silyl Enol Ethers with Commercial Formaldehyde Solution.
Kobayashi S.
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Lanthanide triflates as water-tolerant Lewis acids. Activation of commercial formaldehyde solution and use in the aldol reaction of silyl enol ethers with aldehydes in aqueous media.
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The Journal of Organic Chemistry, 59(13), 3590-3596 (1994)
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