无水硫酸钙

Name: 无水硫酸钙
Brand: 济南圣和化工有限公司

CAS 7778-18-9CaSO4MW 136.14主营产品

济南圣和化工有限公司现供应主营产品——无水硫酸钙（CAS 7778-18-9），分子式 CaSO4，分子量 136.14。本页理化参数仅供参考，实际常规纯度按批次COA提供(不公开发布)，以批次 COA 及订单确认为准，支持批量采购与长期供货协议。

产品概览

CAS号	7778-18-9
分子式	CaSO4
分子量	136.14
熔点	1450 °C
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	酸度调节剂；稳定剂和凝固剂；增稠剂
类别	主营产品\|酸度调节剂\|稳定剂和凝固剂\|增稠剂

应用领域

酸度调节剂；稳定剂和凝固剂；增稠剂

无水硫酸钙的核心用途是酸度调节剂，同时在稳定剂和凝固剂等方向也有成熟应用。不同用途对纯度与杂质指标的要求不同，建议在采购前与我们的技术团队确认规格细节。

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

采购提示：本产品按按订单/批次确认(不公开发布)起订发货，收到货物后请先核对包装完好性再行入库。储存条件为阴凉干燥、密封保存；如需 MSDS 或运输说明，可在询价时一并索取。

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

选择济南圣和化工有限公司的理由：产品信息透明（含 CAS、分子式、理化参数）、报价响应快（一个工作日内）、单证齐全（COA/MSS/质检资料按需提供）、支持批量与长期协议供货。如需无水硫酸钙以外的配套原料，也欢迎一并列出需求清单。

常见问题

无水硫酸钙的 CAS 号是多少？

无水硫酸钙的 CAS 号为 7778-18-9。

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。

无水硫酸钙有什么用途？

主要应用于酸度调节剂；稳定剂和凝固剂；增稠剂。

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

Calcium Sulphate is identified by CAS 7778-18-9, molecular formula CaSO4 and molecular weight 135.91 g/mol. UNII E934B3V59H; ChEBI 31346; InChIKey OSGAYBCDTDRGGQ-UHFFFAOYSA-L. Melting Point: 1450 °C; Solubility: 0.3 % (NIOSH, 2024); Solubility: 0.3%.

Identification

CAS Registry Number	7778-18-9
PubChem CID	24497
Molecular formula	CaSO4
Molecular weight	135.91 g/mol
IUPAC name	calcium sulfate
InChIKey	OSGAYBCDTDRGGQ-UHFFFAOYSA-L
UNII (FDA)	E934B3V59H
ChEBI ID	CHEBI:31346

Computed Descriptors

Molecular Weight	136.14
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	135.9143205
Monoisotopic Mass	135.9143205
Topological Polar Surface Area	88.6
Heavy Atom Count	6
Formal Charge	0
Complexity	62.2

Physical & Chemical Properties

Melting Point	1450 °C
Solubility	0.3 % (NIOSH, 2024)
Solubility	0.3%
Density	2.960
Density	2.9 g/cm³
Density	2.96
Vapor Pressure	0 mmHg (approx) (NIOSH, 2024)
Vapor Pressure	0 mmHg (approx)
Decomposition	1450 °C
Color Additive Status	178.3297

Physical description & handling notes

Calcium sulfate appears as odorless, white powder or colorless, crystalline solid. Crystals sometimes have a blue, gray or reddish tinge or can be brick red. Density: 2.96 g cm-3.
Large Crystals; Wet Solid; Liquid; Liquid; Other Solid; Dry Powder; Other Solid; Large Crystals; CBI; Dry Powder; Other Solid
Fine, white to slightly yellowish-white odourless powder
Odorless, white powder or colorless, crystalline solid. [Note: May have blue, gray, or reddish tinge; [NIOSH]
WHITE HYGROSCOPIC POWDER OR CRYSTALLINE POWDER.
Odorless, white powder or colorless, crystalline solid.

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, FORMULATION AID, LEAVENING AG FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS FIRMING_AGENT; FLOUR_TREATMENT_AGENT; SEQUESTRANT; YEAST_FOO: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, FORMULATION AID, LEAVENING AGENT, LUBRICANT OR RELEASE AGEN NOT LIMITED NMRS 53/TRS 539-JECFA 17/37
GHS notification summary	93.5% (1291 / 1381)

Regulatory & Food Contact

FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, FORMULATION AID, LEAVENING AG
FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
FIRMING_AGENT; FLOUR_TREATMENT_AGENT; SEQUESTRANT; YEAST_FOO: Food Additives
ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, FORMULATION AID, LEAVENING AGENT, LUBRICANT OR RELEASE AGEN
NOT LIMITED
NMRS 53/TRS 539-JECFA 17/37

GHS notification summary

93.5% (1291 / 1381)

GHS Hazard Classification

GHS notification summary	93.5% (1291 / 1381)
Reported hazard statements	H335

This chemical does not meet GHS hazard criteria for 93.5% (1291 of 1381) of all reports.

Reported as not meeting GHS hazard criteria by 1291 of 1381 companies (only 6.5% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

Documented Uses

Gypsum is the dihydrate form and Plaster of Paris is the hemihydrate form. [NIOSH] Used in cement and paper filler (insoluble anhydrite), in a drying agent (soluble anhydrite), in wall plaster and wallboard (hemihydrate), and in soil treatment, Plaster of Paris, Portland cement, water clarification, animal feed, and calcium supplements in food (dihydrate gypsum); The natural forms are the mineral anhydrite (CaSO4) and the dihydrate, gypsum (CaSO4 . 2H2O). [ACGIH]
Cement Producing [Category: Industry]
Farming (Feed Additives) [Category: Industry]
HEAVY CLAY SOIL CONDITIONER, CARRIER /DIHYDRATE/
USED FOR WALL PLASTERS; WALL BOARD; TILES & BLOCKS FOR BUILDING INDUSTRY; MOLDINGS; STATUARY; IN PAPER INDUSTRY /HEMIHYDRATE/
For more Uses (Complete) data for CALCIUM SULFATE (10 total), please visit the HSDB record page.

Synonyms

CALCIUM SULFATE; 7778-18-9; Anhydrous gypsum; Drierite; Karstenite; Muriacite; Basic calcium sulfate; Calcium sulfate, anhydrous; calcium sulphate; Calcium sulfate anhydrous; Crysalba; Osteoset; Thiolite; Anhydrous sulfate of lime; Natural anhydrite; Sulfuric acid, calcium salt (1:1)

Frequently Asked Questions

What are the CAS number and molecular formula of Calcium Sulphate?

CAS 7778-18-9; molecular formula CaSO4; molecular weight 135.91 g/mol.

What other names is Calcium Sulphate known by?

CALCIUM SULFATE, 7778-18-9, Anhydrous gypsum, Drierite, Karstenite, Muriacite.

What is the regulatory status of Calcium Sulphate?

Documented regulatory listings: FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, FORMULATION AID, LEAVENING AG; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; FIRMING_AGENT; FLOUR_TREATMENT_AGENT; SEQUESTRANT; YEAST_FOO: Food Additives.

Is Calcium Sulphate classified as hazardous?

93.5% of GHS notifications report no hazard classification (1291 of 1381).

What are the key physical properties of Calcium Sulphate?

Melting Point: 1450 °C; Solubility: 0.3 % (NIOSH, 2024); Solubility: 0.3%; Density: 2.960.

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.