迪斯曼公司

Name: 迪斯曼公司
Brand: 济南圣和化工有限公司

CAS 144-21-8CH3AsNa2O3MW 183.934

迪斯曼公司，CAS 登记号 144-21-8，由济南圣和化工有限公司现货供应，可提供纯度按批次COA提供(不公开发布) 的规格，下游主要用于肥料。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。

规格参数

CAS号144-21-8

分子式CH3AsNa2O3

分子量183.934

熔点>355 °C

LogPKow = <10

纯度按批次COA提供(不公开发布)

包装按订单/批次确认(不公开发布)

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类别肥料

用途与场景

肥料

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储存条件密封、阴凉干燥处保存

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常见问题

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本页已列出迪斯曼公司的 CAS 号：144-21-8，可与随货 COA 核对。

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PubChem 公开数据

Description

DSMA · CAS 144-21-8 · CH3AsNa2O3. UNII 7NK4BV40VN. Melting Point: >355 °C; Solubility: In water, 4.32X10+5 mg/l @ 25 °C; Density: 1.04 g/ml.

Identification

CAS Registry Number	144-21-8
PubChem CID	8947
Molecular formula	CH3AsNa2O3
IUPAC name	disodium;methyl-dioxido-oxo-λ5-arsane
UNII (FDA)	7NK4BV40VN

Computed Descriptors

Molecular Weight	183.934
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	183.909352
Monoisotopic Mass	183.909352
Topological Polar Surface Area	63.2
Heavy Atom Count	7
Formal Charge	0
Complexity	49.8

Physical & Chemical Properties

Melting Point	>355 °C
Solubility	In water, 4.32X10+5 mg/l @ 25 °C
Density	1.04 g/ml
Vapor Pressure	0.0000001 [mmHg]
Vapor Pressure	10-7 mm Hg @ 25 °C
LogP	Kow = <10
Dissociation Constants	pKa1 = 4.1; pKa2 = 8.94

Physical description & handling notes

Colorless hygroscopic solid; [Hawley]
Hydrated crystals containing 5H2O or 6H2O
Monoclinic spear-shaped plates from absolute alcohol
White crystalline solid
Pleasant acid taste
Melting point 132-139 °C /Disodium methanearsonate hexahydrate/

GHS Hazard Classification

Reported hazard statements	H301 (95%), H331 (97.5%), H400 (100%), H410 (97.5%)

H301 (95%): Toxic if swallowed [Danger Acute toxicity, oral]

H331 (97.5%): Toxic if inhaled [Danger Acute toxicity, inhalation]

Documented Uses

Used as herbicide for control of grass weeds in turf, cotton, and non-crop areas; Also used in pharmaceuticals; [HSDB]
Recommended to control grass weeds on non-crop areas; directed spray under trees.
USEFUL AS DIRECTED APPLICATION ... FOR POST-EMERGENT CONTROL OF WEEDS AND GRASSES, IN ZOYSIA, BLUEGRASS, AND BERMUDA GRASS LAWNS, GENERAL NON-CROP WEED CONTROL ... .
For more Uses (Complete) data for DISODIUM METHANEARSONATE (6 total), please visit the HSDB record page.
Reaction of methyl chloride with sodium arsenate.
Prepared from sodium arsenite and methyl iodide.

Synonyms

144-21-8; Disodium methylarsonate; DISODIUM METHANEARSONATE; Disomear; DSMA; Metharsan; Stenosine; Tonarsan; Tonarsin; Arsynal; Diarsen; Methar; Namate; Somar; Neo-Asycodile; Weed broom

Frequently Asked Questions

What are the CAS number and molecular formula of DSMA?

CAS 144-21-8; molecular formula CH3AsNa2O3; molecular weight — g/mol.

What other names is DSMA known by?

144-21-8, Disodium methylarsonate, DISODIUM METHANEARSONATE, Disomear, DSMA, Metharsan.

Is DSMA classified as hazardous?

Hazard statements reported: H301, H331, H400, H410.

What are the key physical properties of DSMA?

Melting Point: >355 °C; Solubility: In water, 4.32X10+5 mg/l @ 25 °C; Density: 1.04 g/ml; Vapor Pressure: 0.0000001 [mmHg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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