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CAS 7440-22-4AgMW 107.868

银,CAS 登记号 7440-22-4,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,下游主要用于着色剂;食品添加剂。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7440-22-4
分子式Ag
分子量107.868
熔点1763.5 °F (NTP, 1992)
沸点4014 °F at 760 mmHg (NTP, 1992)
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)
应用领域着色剂;食品添加剂
类别着色剂|食品添加剂

用途与场景

着色剂;食品添加剂

包装与供货

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
供货周期现货/按订单安排

文件与支持

每批随货提供 COA;可按需提供 MSDS 及技术文件。邮件注明产品名称与 CAS 号,一个工作日内回复报价。

常见问题

在哪里能查到 银 的 CAS 号?

本页已列出 银 的 CAS 号:7440-22-4,可与随货 COA 核对。

可以提供哪些规格和包装?

常见纯度为 按批次COA提供(不公开发布),包装形式为 按订单/批次确认(不公开发布),特殊规格可在询价时说明。

银 一般用在什么产品里?

主要涉及着色剂;食品添加剂。

下单流程是怎样的?

来信 info@591daili.com 或 WhatsApp 联系,提供产品名称、CAS 号与数量,确认价格与交期后即可安排发货,验收以批次 COA 为准。

PubChem 公开数据

Description

Silver · CAS 7440-22-4 · Ag. UNII 3M4G523W1G. Boiling Point: 4014 °F at 760 mmHg (NTP, 1992); Boiling Point: 2212; Boiling Point: Approx 2000 °C.

Identification

CAS Registry Number7440-22-4
PubChem CID23954
Molecular formulaAg
IUPAC namesilver
UNII (FDA)3M4G523W1G

Computed Descriptors

Molecular Weight107.868
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count0
Exact Mass106.90509
Monoisotopic Mass106.90509
Topological Polar Surface Area0
Heavy Atom Count1
Formal Charge0
Complexity0

Physical & Chemical Properties

Boiling Point4014 °F at 760 mmHg (NTP, 1992)
Boiling Point2212
Boiling PointApprox 2000 °C
Boiling Point2212 °C
Boiling Point4014 °F
Boiling Point2162 °C @760 [mm Hg]
Boiling Point3632 °F
Melting Point1763.5 °F (NTP, 1992)
Melting Point961
Melting Point960.5 °C

Physical description & handling notes

  • Silvery metallic solid. (NTP, 1992)
  • Dry Powder; Other Solid; Large Crystals; CBI; Large Crystals; Other Solid; Dry Powder; Large Crystals; Wet Solid; Dry Powder; Other Solid
  • Silver-coloured powder or tiny sheets
  • Metal: White, lustrous solid; [NIOSH]
  • WHITE METAL.
  • Silvery metallic solid.

Regulatory Status

Regulatory & Food ContactFDA Regulatory Status of Color Additives: Cosmetics
FDA Cumulative Estimated Daily Intake (CEDI): FCS
COLOUR: Food Additives
Colloidal Silver Products
DECISION POSTPONED
Not re-evaluated by JECFA, but the provisions for silver was withdrawn at CCFA50
GHS notification summary28.9% (623 / 2154)

GHS Hazard Classification

GHS notification summary28.9% (623 / 2154)
Reported hazard statementsH373, H400, H410, H360, H317, H320, H370, H372

H361f: Suspected of damaging fertility [Warning Reproductive toxicity]

H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]

Documented Uses

  • Metal Preparation and Pouring [Category: Foundry]
  • Brazing [Category: Heat or Machine]
  • Electroplating [Category: Plate]
  • Soldering [Category: Heat or Machine]
  • Semiconductor Manufacturing [Category: Industry]
  • Smelting Copper or Lead [Category: Industry]

Synonyms

SILVER; 7440-22-4; Argentum; Silver atom; Silver metal; Colloidal silver; Silver, colloidal; Algaedyn; Silber; Shell silver; Astroflake 5; Carey Lea silver; Argentum metallicum; Degussa 67; Degussa 80; Silpowder 130

Frequently Asked Questions

What are the CAS number and molecular formula of Silver?

CAS 7440-22-4; molecular formula Ag; molecular weight — g/mol.

What other names is Silver known by?

SILVER, 7440-22-4, Argentum, Silver atom, Silver metal, Colloidal silver.

What is the regulatory status of Silver?

Documented regulatory listings: FDA Regulatory Status of Color Additives: Cosmetics; FDA Cumulative Estimated Daily Intake (CEDI): FCS; COLOUR: Food Additives.

Is Silver classified as hazardous?

28.9% of GHS notifications report no hazard classification (623 of 2154).

What are the key physical properties of Silver?

Boiling Point: 4014 °F at 760 mmHg (NTP, 1992); Boiling Point: 2212; Boiling Point: Approx 2000 °C; Boiling Point: 2212 °C.

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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