# lnventoryExpertService A division of the American Chemica! Society Phone: 800-631-1884, 614-44-f-38"70 Fax: 614-447-3747 E-mail: answers@cas.org Web: www. cas. org/products/other-cas- products/client-services/ 

### February 13,2015 Environ International Corporation ATTN: Ms. Brianna Scherffius 18100 Von Karrnan Avenue, Suite 600 Irvine, CA 92612 Dear Ms. Scherffius: Thank you for your Inventory Expert Service (IES) order of January 05, 2015. The processing results are attached. To ensure efficient processing of your substance(s), it is important that these results are included with your PMN report for when reporting to the EPA. An invoice will be issued for the cost of the technical processing for your order. Thank you for the opportunity to provide this service. If you have any questions, please do not hesitate to contact me. Sincerely, Candice Egelhoff CAS Client Services Enclosure( s)

CAS 2540 Olentangy River Road P.O. Box 3343 Columbus, OH 43210-0334 USA

# lnventoryExpettService A division of the American Chemica! Society Phone: 800-631-1884, 614-44"/-38/0 Fax: 6'14-447-3747 E-mail: answers@cas.org Wo b : www. cas.org/p rod ucts/othe r-cas- prod ucts/cl ion t-so rv ices/


# INVENTORY EXPERT SERVICE REPORT

IES Order Number: 389478 Registry Number: 12005-25-3 CA Index Name: Aluminum calcium oxide sulfate (Al6Ca4012(S04))

Please print the above CA Index Name on the appropriate page of your PMN.

CAS If this box is checked, CAS has made correction(s) marked in red to your IES order. Please make the same corrections to your PMN before submitting it to the EPA. 2540 Olentangy River Road P.O. Box 3343 Columbus, OH 43210-0334 USA1 1 11 11 11 1! 11 111111111111111 1111111111 11 11 11 1111 11111111 CB I SUBMISSION

ation for you (for e ith e r Item 1 or 2), mark (X) the box at the rig ht. Ide ntify 

# 0 con tinuati o n sheet. 1 . C lass 1 o r 2 chemical substances (for defini tions of c lass 1 a nd class 2 substan ces. see the Instructions Manua l) Class 1 Class 2 a . C la ss of substance - Mark 

# 0 b . C hem ical name (Currently correct C hemical Abstracts (CA) Nam e th at is consiste nt w ith TSCA I nventory li sting s fo r similar s ubstan ces. For Class 1 subs tan ces a CA Index N ame mu st be provided . For C lass 2 substances either a CA I nd ex Nam e orCA

d. e . **Pr~.,,, •n**  N a me must be which ever is ate based on c u rre nt 

### A lumin um ca l cium oxide sulfate (AI 6

### CaaO,(S04ll - present in a mi xture to ge th er with quick lim e (CaO; on TSCA In ve ntory) and anhydrite (CaS0 4 ; 

### on TSCA In ve ntory) , and form ed from the h ig h-temperature (between 

## 1,2oo• c a nd 

## 1,4oo• q rea ct i on of ca lciu m car bonate (CaC0 3 ; 

### from limestone), calcium sulfate dehydrate (CaS04 

### • 2H 2

### 0; from gyps um) , a nd aluminum ox id e (AI 2

### 0 3 ; 

### fro u xite and a lum inum ash) . See Co ntin u at i on Sheet 1.

Ia a nd crystal structure as the naturallypresent in cement product s. See publication by K

. Wh ittake r, and Lind say David, " Structure of Ca l cium

m . 11 9, 1 -7 (1995) . See attach ed crystal structure

E nter Attachment fil ename for Part I , Section B, 1 . e . CB I

EPA FOR M 7710 -25 (Rev . 6 - 09) Rep laces p r evi ous editions of E PA Form 77 1 0-25 Page 4