氧化亚锡

Name: 氧化亚锡
Brand: 济南圣和化工有限公司

CAS 21651-19-4OSnMW 134.71

氧化亚锡（CAS 21651-19-4）属无机化学品类产品，分子式 OSn，分子量 134.71。济南圣和化工有限公司常年现货供应该产品，常规纯度按批次COA提供(不公开发布)，可按客户需求安排分装包装，欢迎邮件或来电询价。

产品概览

CAS号	21651-19-4
分子式	OSn
分子量	134.71
熔点	1976 °F@600 mmHg (decomposes)
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)
应用领域	无机化学品
类别	无机化学品

应用领域

无机化学品

氧化亚锡主要应用于无机化学品。具体使用工况下的添加量与规格要求，欢迎与技术团队沟通确认。

包装与储存

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

运输常规化工运输

样品可协商提供

交期现货/按订单安排

供货能力：氧化亚锡备有现货，包装形式为按订单/批次确认(不公开发布)。我们支持对公转账并开具增值税发票，山东省内可安排快速配送，省外按物流时效发货，具体请联系 info@591daili.com。

质量与文件

每批产品随货提供 COA（分析证书）；可按需提供 MSDS/技术数据表及第三方检测报告。纯度与包装以批次 COA 及订单确认为准。

关于供应商

济南圣和化工有限公司位于山东济南，主营化工原料供应，精选产品 3,000+ 种，覆盖有机化学品、无机化学品、食品添加剂、医药中间体等 12 大分类。我们随货提供 COA 分析证书，一个工作日内回复报价，欢迎国内外采购方长期合作。

常见问题

氧化亚锡的 CAS 号是多少？

氧化亚锡的 CAS 号为 21651-19-4。

该产品的纯度和包装规格是什么？

常规纯度规格为按批次COA提供(不公开发布)，包装为按订单/批次确认(不公开发布)，随货提供 COA。

氧化亚锡有什么用途？

主要应用于无机化学品。

如何购买或获取报价？

请发送邮件至 info@591daili.com 或通过 WhatsApp 联系，注明产品名称、CAS 号与需求数量，一个工作日内回复报价。供应商：济南圣和化工有限公司。

PubChem 公开数据

Description

Stannous Oxide · CAS 21651-19-4 · OSn. Melting Point: 1976 °F@600 mmHg (decomposes); Melting Point: 1630 °C; Melting Point: (600 mmHg): 1976 °F (Decomposes).

Identification

CAS Registry Number	21651-19-4
PubChem CID	88989
Molecular formula	OSn
IUPAC name	oxotin

Computed Descriptors

Molecular Weight	134.71
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	0
Exact Mass	135.897117
Monoisotopic Mass	135.897117
Topological Polar Surface Area	17.1
Heavy Atom Count	2
Formal Charge	0
Complexity	2

Physical & Chemical Properties

Melting Point	1976 °F@600 mmHg (decomposes)
Melting Point	1630 °C
Melting Point	(600 mmHg): 1976 °F (Decomposes)
Density	6.45 g/cm³
Density	6.3
Density	6.95 @25 °C
Vapor Pressure	0 mmHg (approx) (NIOSH, 2024)
Vapor Pressure	0 mmHg
Vapor Pressure	0 mmHg (approx)

Physical description & handling notes

Tin(ii) oxide appears as brownish-black powder or black to blue-black crystalline solid. Mp: 1080 °C (decomposes); density: 6.45 g cm-3. Insoluble in water.
Dry Powder
Brownish-black solid; [Merck Index] Bluish-black odorless powder; [Alfa Aesar MSDS]
BLUE-TO-BLACK CRYSTALLINE POWDER.
Brownish-black powder or black to blue-black crystalline solid.
Brownish-black powder.

Regulatory Status

GHS notification summary	64.7% (130 / 201)

GHS Hazard Classification

GHS notification summary	64.7% (130 / 201)
Reported hazard statements	H302 (35.3%), H317 (35.3%), H319 (35.3%), H372 (35.3%)

This chemical does not meet GHS hazard criteria for 64.7% (130 of 201) of all reports.

H302 (35.3%): Harmful if swallowed [Warning Acute toxicity, oral]

Documented Uses

Tin oxides are used in solders, protective coatings, and alloys; [ACGIH] Used as a reducing agent and to make stannous salts; [Merck Index] Used to make gold-tin and copper-tin ruby glass; [INCHEM CICADS]
Abrasive Blasting [Category: Clean]
Metal Preparation and Pouring [Category: Foundry]
Soldering [Category: Heat or Machine]
Semiconductor Manufacturing [Category: Industry]
Textiles (Printing, Dyeing, or Finishing) [Category: Industry]

Synonyms

Tin(II) oxide; 21651-19-4; Tin monoxide; Tin oxide (Sn2O2); Tin (II) Oxide; stannanone; TIN PROTOXIDE; RefChem:1100132; 244-499-5; TIN OXIDE (SnO); Tin(2+) oxide; oxotin; MFCD00011243; T 1186; Tego RL; Tin dioxide; Tin dioxide (SnO2); Tin(IV) oxide; (oxo)stannane; Tin Oxide Nanowires

Frequently Asked Questions

What are the CAS number and molecular formula of Stannous Oxide?

CAS 21651-19-4; molecular formula OSn; molecular weight — g/mol.

What other names is Stannous Oxide known by?

Tin(II) oxide, 21651-19-4, Tin monoxide, Tin oxide (Sn2O2), Tin (II) Oxide, stannanone.

Is Stannous Oxide classified as hazardous?

64.7% of GHS notifications report no hazard classification (130 of 201).

What are the key physical properties of Stannous Oxide?

Melting Point: 1976 °F@600 mmHg (decomposes); Melting Point: 1630 °C; Melting Point: (600 mmHg): 1976 °F (Decomposes); Density: 6.45 g/cm³.

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.