镉酸钙

镉酸钙用途

铬酸钙用作防锈颜料，配制带锈底漆，有良好防锈性能，特别是对轻金属（如镁合金）有良好的防锈效果。用作信号弹药、化学试剂、氧化剂及阻蚀剂。用作熔盐电池的活化剂和去极化剂。

镉酸钙名称

[ CAS 号 ]:
10060-08-9

[ 中文名 ]:
镉酸钙

[ 英文名 ]:
CALCIUM CHROMATE

[中文别名 ]:

斯坦布尔黄,铬黄(色料)

[英文别名 ]:

Calcium chrome(VI) dihydrate
Chromic acid,calcium salt (1:1),dihydrate
Calcium chromate dihydrate
Steinbuhl Yellow

镉酸钙物理化学性质

[ 分子式 ]:
CaCrH₄O₆

[ 分子量 ]:
192.10200

[ 精确质量 ]:
191.90400

[ PSA ]:
98.72000

[ 储存条件 ]:
库房通风低温干燥,与有机物,还原剂分开存放

镉酸钙毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GB2800000

CAS REGISTRY NUMBER :: 10060-08-9

LAST UPDATED :: 199712

DATA ITEMS CITED :: 25

MOLECULAR FORMULA :: Cr-O4.Ca.2H2-O

MOLECULAR WEIGHT :: 192.12

WISWESSER LINE NOTATION :: CA CR-O4 &QH 2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :: Morphological transformation

TEST SYSTEM :: Rodent - hamster Kidney

REFERENCE :: CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 35,1058,1975 *** REVIEWS *** ACGIH TLV-TWA 0.05 mg(Cr)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-Confirmed human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 2,100,1972 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.5 mg(Cr)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,35,1971 OSHA PEL (Gen Indu):CL 0.1 mg(CrO3)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):CL 0.1 mg(CrO3)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):CL 0.1 mg(CrO3)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):CL 0.1 mg(CrO3)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.5 mg/m3 JAN 1993 OEL-AUSTRALIA:TWA 0.5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 0.5 mg/m3 JAN 1993 OEL-DENMARK:TWA 0.5 mg/m3 JAN 1993 OEL-FINLAND:TWA 0.5 mg/m3 JAN 1993 OEL-FRANCE;Skin JAN 1993 OEL-INDIA:TWA 0.5 mg/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.5 mg/m3 JAN 1993 OEL-SWEDEN:TWA 0.5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.5 mg/m3 JAN 1993 OEL-THAILAND:TWA 1 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.5 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO CHROMIUM(VI)-air:10H CA TWA 0.001 mg(Cr)/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992

镉酸钙制备

1.铬酸钠溶液预热，同足量NaOH混合，保持ｐＨ值为10～11，并与过量20%的CaCl2溶液混合，于100℃加热，沉淀滤洗后于230℃干燥，制得含CaCrO489.55%的颜料铬酸钙。

2.轻质碳酸钙50份与等量水捏合成浆，缓慢注入34份盐酸，然后加18份氢氧化钠煮沸，再加68份重铬酸钾在100份水中的溶液，继续煮沸，滤洗、烘干，得到无定型铬酸钙黄色粉末。

3.52kgCa(OH)2与6.5L水混成浆，搅拌下分次加入64.1kg铬酐，浆料球磨10h，得含40%水分的浆料，直接干燥后于600℃煅烧1h，粉碎即得铬酸钙颜料。

镉酸钙